Provided by: muon-meson_0.3.0-4_amd64 bug

NAME

       meson-reference v1.5.1 - a reference for meson functions and objects

DESCRIPTION

       This  manual  is  divided  into two sections, FUNCTIONS and OBJECTS.  FUNCTIONS contains a
       reference   for   all   meson   functions   and   methods.    Methods   are   denoted   by
       object_name.method_name().  OBJECTS contains additional information about each object.

FUNCTIONS

   add_global_arguments()
       SYNOPSIS
           void add_global_arguments(
               Compiler argument...,
               language:,
               native: false,
           )

       DESCRIPTION
           Adds global arguments to the compiler command line.

       VARARGS
           Compiler argument str, 0...N times
             The compiler arguments to add

       KWARGS
           language list[str], required
             Specifies  the  language(s)  that  the  arguments should be applied to. If a list of
             languages is given, the arguments are added to each of  the  corresponding  compiler
             command  lines.  Note that there is no way to remove an argument set in this way. If
             you have an argument that is only used in a subset of targets, you have  to  specify
             it in per-target flags.

           native bool, default: false, since 0.48.0
             A  boolean specifying whether the arguments should be applied to the native or cross
             compilation. If `true` the arguments will only be used for native  compilations.  If
             `false` the arguments will only be used in cross compilations. If omitted, the flags
             are added to native compilations if compiling natively and cross compilations (only)
             when cross compiling.

       NOTES
           Usually you should use add_project_arguments instead, because that works even when you
           project is used as a subproject.  You must pass always arguments  individually  `arg1,
           arg2, ...` rather than as a string `'arg1 arg2', ...`

   add_global_link_arguments()
       SYNOPSIS
           void add_global_link_arguments(
               Linker argument...,
               language:,
               native: false,
           )

       DESCRIPTION
           Adds global arguments to the linker command line.

           Like add_global_arguments but the arguments are passed to the linker.

       VARARGS
           Linker argument str, 0...N times
             The linker arguments to add

       KWARGS
           language list[str], required
             Specifies  the  language(s)  that  the  arguments should be applied to. If a list of
             languages is given, the arguments are added to each of  the  corresponding  compiler
             command  lines.  Note that there is no way to remove an argument set in this way. If
             you have an argument that is only used in a subset of targets, you have  to  specify
             it in per-target flags.

           native bool, default: false, since 0.48.0
             A  boolean specifying whether the arguments should be applied to the native or cross
             compilation. If `true` the arguments will only be used for native  compilations.  If
             `false` the arguments will only be used in cross compilations. If omitted, the flags
             are added to native compilations if compiling natively and cross compilations (only)
             when cross compiling.

       NOTES
           Usually  you  should  use  add_project_link_arguments instead, because that works even
           when you project is used as a subproject.  You must pass always arguments individually
           `arg1, arg2, ...` rather than as a string `'arg1 arg2', ...`

   add_languages()
       SYNOPSIS
           bool add_languages(Language..., native:, required: true)

       DESCRIPTION
           Add programming languages used by the project.

           This  is  equivalent  to  having  them  in the `project` declaration. This function is
           usually used to add languages that are only used under some conditions.

           Returns `true` if all languages specified were found and `false` otherwise.

           If `native` is omitted, the languages may be used for either build  or  host  machine,
           but   are   never  required  for  the  build  machine.   (i.e.  it  is  equivalent  to
           `add_languages(langs, native:  false,  required:  required)  and  add_languages(langs,
           native:  true, required: false)`. This default behaviour may change to `native: false`
           in a future Meson version.

       VARARGS
           Language str, 0...N times
             The languages to add

       KWARGS
           native bool, since 0.54.0
             If set to `true`, the language will be used to compile for  the  build  machine,  if
             `false`, for the host machine.

           required bool | feature, default: true
             If  set  to `true`, Meson will halt if any of the languages specified are not found.
             (since 0.47.0) The value of a `feature`[1] option can also be passed.

       EXAMPLE

               project('foobar', 'c')

               if compiling_for_osx
                 add_languages('objc')
               endif
               if add_languages('cpp', required : false)
                 executable('cpp-app', 'main.cpp')
               endif

               # More code...

   add_project_arguments()
       SYNOPSIS
           void add_project_arguments(
               Compiler argument...,
               language:,
               native: false,
           )

       DESCRIPTION
           Adds project specific arguments to the compiler command line.

           This function behaves  in  the  same  way  as  add_global_arguments  except  that  the
           arguments  are  only  used  for  the  current project, they won't be used in any other
           subproject.

       VARARGS
           Compiler argument str, 0...N times
             The compiler arguments to add

       KWARGS
           language list[str], required
             Specifies the language(s) that the arguments should be applied  to.  If  a  list  of
             languages  is  given,  the arguments are added to each of the corresponding compiler
             command lines. Note that there is no way to remove an argument set in this  way.  If
             you  have  an argument that is only used in a subset of targets, you have to specify
             it in per-target flags.

           native bool, default: false, since 0.48.0
             A boolean specifying whether the arguments should be applied to the native or  cross
             compilation.  If  `true` the arguments will only be used for native compilations. If
             `false` the arguments will only be used in cross compilations. If omitted, the flags
             are added to native compilations if compiling natively and cross compilations (only)
             when cross compiling.

       NOTES
           You must pass always arguments individually `arg1, arg2, ...` rather than as a  string
           `'arg1 arg2', ...`

   add_project_dependencies()
       SYNOPSIS
           void add_project_dependencies(
               dependencies...,
               language:,
               native: false,
           )

           since 0.63.0

       DESCRIPTION
           Adds  arguments  to  the  compiler  and  linker command line, so that the given set of
           dependencies is included in all build products for this project.

       VARARGS
           dependencies dep, 0...N times
             The dependencies to add; if  internal  dependencies  are  included,  they  must  not
             include any built object.

       KWARGS
           language list[str], required
             Specifies  the  language(s)  that  the  arguments should be applied to. If a list of
             languages is given, the arguments are added to each of  the  corresponding  compiler
             command  lines.  Note that there is no way to remove an argument set in this way. If
             you have an argument that is only used in a subset of targets, you have  to  specify
             it in per-target flags.

           native bool, default: false, since 0.48.0
             A  boolean specifying whether the arguments should be applied to the native or cross
             compilation. If `true` the arguments will only be used for native  compilations.  If
             `false` the arguments will only be used in cross compilations. If omitted, the flags
             are added to native compilations if compiling natively and cross compilations (only)
             when cross compiling.

   add_project_link_arguments()
       SYNOPSIS
           void add_project_link_arguments(
               Linker argument...,
               language:,
               native: false,
           )

       DESCRIPTION
           Adds project specific arguments to the linker command line.

           Like add_project_arguments but the arguments are passed to the linker.

       VARARGS
           Linker argument str, 0...N times
             The linker arguments to add

       KWARGS
           language list[str], required
             Specifies  the  language(s)  that  the  arguments should be applied to. If a list of
             languages is given, the arguments are added to each of  the  corresponding  compiler
             command  lines.  Note that there is no way to remove an argument set in this way. If
             you have an argument that is only used in a subset of targets, you have  to  specify
             it in per-target flags.

           native bool, default: false, since 0.48.0
             A  boolean specifying whether the arguments should be applied to the native or cross
             compilation. If `true` the arguments will only be used for native  compilations.  If
             `false` the arguments will only be used in cross compilations. If omitted, the flags
             are added to native compilations if compiling natively and cross compilations (only)
             when cross compiling.

       NOTES
           You  must pass always arguments individually `arg1, arg2, ...` rather than as a string
           `'arg1 arg2', ...`

   add_test_setup()
       SYNOPSIS
           void add_test_setup(
               name,
               env:,
               exclude_suites:,
               exe_wrapper:,
               gdb: false,
               is_default: false,
               timeout_multiplier: 1,
           )

       DESCRIPTION
           Add a custom test setup. This setup can be used to run the tests with a custom  setup,
           for example under Valgrind.

           To use the test setup, run `meson test --setup=name` inside the build dir.

           Note  that  all these options are also available while running the `meson test` script
           for running  tests  instead  of  `ninja  test`  or  `msbuild  RUN_TESTS.vcxproj`,  etc
           depending on the backend.

       POSARGS
           name str, required
             The name of the test setup

       KWARGS
           env env | list[str] | dict[str]
             environment variables to set , such as `['NAME1=value1', 'NAME2=value2']`, or an env
             object which allows  more  sophisticated  environment  juggling.  (Since  0.52.0)  A
             dictionary is also accepted.

           exclude_suites list[str], since 0.57.0
             A  list  of  test  suites  that  should  be  excluded  when using this setup. Suites
             specified in the `--suite` option  to  `meson  test`  will  always  run,  overriding
             `add_test_setup` if necessary.

           exe_wrapper list[str | external_program]
             The command or script followed by the arguments to it

           gdb bool, default: false
             If `true`, the tests are also run under `gdb`

           is_default bool, default: false, since 0.49.0
             Set  whether  this  is  the  default  test setup.  If `true`, the setup will be used
             whenever `meson test` is run without the `--setup` option.

           timeout_multiplier int, default: 1
             A number to multiply the test timeout with.  Since 0.57 if timeout_multiplier is `<=
             0` the test has infinite duration, in previous versions of Meson the test would fail
             with a timeout immediately.

   alias_target()
       SYNOPSIS
           alias_tgt alias_target(target_name, Dep...)

           since 0.52.0

       DESCRIPTION
           This function creates a  new  top-level  target.  Like  all  top-level  targets,  this
           integrates  with  the  selected  backend.  For instance, with you can run it as `meson
           compile target_name`. This is a dummy target that does not execute  any  command,  but
           ensures  that  all dependencies are built. Dependencies can be any build target. Since
           0.60.0, this includes run_tgt.

       POSARGS
           target_name str, required
             The name of the alias target

       VARARGS
           Dep tgt, 1...N times
             The targets to depend on

   assert()
       SYNOPSIS
           void assert(condition, [message])

       DESCRIPTION
           Abort with an error message if `condition` evaluates to `false`.

       POSARGS
           condition bool, required
             Abort if this evaluates to `false`

       OPTARGS
           message str
             The error message to print.

       NOTES
           The `message` argument is optional since 0.53.0 and defaults to  print  the  condition
           statement.

   benchmark()
       SYNOPSIS
           void benchmark(
               name,
               executable,
               args:,
               depends:,
               env:,
               priority: 0,
               protocol: 'exitcode',
               should_fail: false,
               suite:,
               timeout: 30,
               verbose: false,
               workdir:,
           )

       DESCRIPTION
           Creates  a  benchmark  item  that  will  be  run when the benchmark target is run. The
           behavior of this function is identical to test except for:

           * benchmark() has no `is_parallel` keyword because benchmarks are not run in parallel
           * benchmark() does not automatically add the `MALLOC_PERTURB_` environment variable

           Defined benchmarks can be run  in  a  backend-agnostic  way  by  calling  `meson  test
           --benchmark`  inside  the  build  dir,  or by using backend-specific commands, such as
           `ninja benchmark` or `msbuild RUN_TESTS.vcxproj`.

       POSARGS
           name str, required
             The unique test id

           executable exe | jar | external_program | file | custom_tgt | custom_idx, required
             The program to execute. (Since 1.4.0) A CustomTarget is also accepted.

       KWARGS
           args list[str | file | build_tgt | custom_tgt | custom_idx]
             Arguments to pass to the executable

           depends list[build_tgt | custom_tgt], since 0.46.0
             specifies that this test depends on the specified target(s), even though it does not
             take  any  of  them  as  a command line argument. This is meant for cases where test
             finds those targets internally, e.g. plugins or globbing. Those  targets  are  built
             before test is executed even if they have `build_by_default : false`.

           env env | list[str] | dict[str]
             environment  variables to set, such as `['NAME1=value1', ´NAME2=value2']`, or an env
             object which allows  more  sophisticated  environment  juggling.  (Since  0.52.0)  A
             dictionary is also accepted.

           priority int, default: 0, since 0.52.0
             specifies  the  priority  of a test. Tests with a higher priority are started before
             tests with a lower priority.  The starting order of tests with identical  priorities
             is   implementation-defined.  The  default  priority  is  0,  negative  numbers  are
             permitted.

           protocol str, default: 'exitcode', since 0.50.0
             specifies how the test results are parsed and can be one of  `exitcode`,  `tap`,  or
             `gtest`.  For  more  information about test harness protocol read Unit Tests[2]. The
             following values are accepted:

             - `exitcode`: the executable's exit code is used by the test harness to  record  the
             outcome of the test).
             - `tap`: Test Anything Protocol[3].
             - `gtest` (since 0.55.0): for Google Tests.
             - `rust` (since 0.56.0): for native rust tests

           should_fail bool, default: false
             when  true the test is considered passed if the executable returns a non-zero return
             value (i.e. reports an error)

           suite str | list[str]
             `'label'` (or list of labels `['label1', 'label2']`)  attached  to  this  test.  The
             suite    name    is    qualified    by    a    (sub)project    name   resulting   in
             `(sub)project_name:label`. In the case of a list of strings, the suite names will be
             `(sub)project_name:label1`, `(sub)project_name:label2`, etc.

           timeout int, default: 30
             the amount of seconds the test is allowed to run, a test that exceeds its time limit
             is always considered failed, defaults to 30 seconds. Since 0.57 if timeout is `<= 0`
             the  test  has  infinite duration, in previous versions of Meson the test would fail
             with a timeout immediately.

           verbose bool, default: false, since 0.62.0
             if true, forces the test results to be logged as if `--verbose` was passed to `meson
             test`.

           workdir str
             absolute path that will be used as the working directory for the test

       NOTES
           Prior  to  0.52.0 benchmark would warn that `depends` and `priority` were unsupported,
           this is incorrect.

   both_libraries()
       SYNOPSIS
           both_libs both_libraries(
               target_name,
               source...,
               <lang>_args:,
               <lang>_pch:,
               <lang>_shared_args:,
               <lang>_static_args:,
               build_by_default: true,
               build_rpath:,
               d_debug:,
               d_import_dirs:,
               d_module_versions:,
               d_unittest: false,
               darwin_versions:,
               dependencies:,
               extra_files:,
               gnu_symbol_visibility:,
               gui_app: false,
               implicit_include_directories: true,
               include_directories:,
               install: false,
               install_dir:,
               install_mode:,
               install_rpath:,
               install_tag:,
               link_args:,
               link_depends:,
               link_language:,
               link_whole:,
               link_with:,
               name_prefix:,
               name_suffix:,
               native: false,
               objects:,
               override_options:,
               pic:,
               prelink:,
               rust_abi:,
               rust_crate_type:,
               rust_dependency_map:,
               sources:,
               soversion:,
               vala_args:,
               vala_shared_args:,
               vala_static_args:,
               version:,
               vs_module_defs:,
               win_subsystem: 'console',
           )

           since 0.46.0

       DESCRIPTION
           Builds both a static and shared  library  with  the  given  sources.   Positional  and
           keyword arguments are otherwise the same as for library. Source files will be compiled
           only once and object files will be reused to build both shared and  static  libraries,
           unless  `b_staticpic`  user  option  or  `pic` argument are set to false in which case
           sources will be compiled twice.

       POSARGS
           target_name str, required
             The unique name of the build target

       VARARGS
           source str | file | custom_tgt | custom_idx | generated_list, 0...N times
             Input source to compile. The following types are supported:

             - Strings relative to the current source directory
             - file objects defined in any preceding build file
             - The return value of configure-time generators such as configure_file
             -  The  return  value  of   build-time   generators   such   as   custom_target   or
             generator.process

             These  input files can be sources, objects, libraries, or any other file. Meson will
             automatically categorize them based on the extension and use them  accordingly.  For
             instance,  sources  (`.c`, `.cpp`, `.vala`, `.rs`, etc) will be compiled and objects
             (`.o`, `.obj`) and libraries (`.so`, `.dll`, etc) will be linked.

             With the Ninja backend, Meson will create a build-time order-only  dependency[4]  on
             all  generated input files, including unknown files. This is needed to bootstrap the
             generation of the real dependencies in the depfile[5] generated by your compiler  to
             determine  when  to  rebuild  sources.  Ninja relies on this dependency file for all
             input files, generated  and  non-generated.   The  behavior  is  similar  for  other
             backends.

       KWARGS
           <lang>_args list[str]
             compiler flags to use for the given language; eg: `cpp_args` for C++

           <lang>_pch str
             precompiled header file to use for the given language

           <lang>_shared_args list[str], since 1.3.0
             Arguments that are only passed to a shared library

           <lang>_static_args list[str], since 1.3.0
             Arguments that are only passed to a static library

           build_by_default bool, default: true, since 0.38.0
             Causes,  when set to `true`, to have this target be built by default.  This means it
             will be built when `meson compile` is called  without  any  arguments.  The  default
             value is `true` for all built target types.

           build_rpath str, since 0.42.0
             A  string  to  add  to target's rpath definition in the build dir, but which will be
             removed on install

           d_debug list[str]
             The D version identifiers[6] to add during the compilation of D source files.

           d_import_dirs list[str]
             List of directories to look  in  for  string  imports  used  in  the  D  programming
             language.

           d_module_versions list[str | int]
             List of module version identifiers set when compiling D sources.

           d_unittest bool, default: false
             When set to true, the D modules are compiled in debug mode.

           darwin_versions str | int | list[str], since 0.48.0
             Defines  the  `compatibility  version` and `current version` for the dylib on macOS.
             If a list is specified, it must be either zero, one, or two elements.  If  only  one
             element  is  specified  or  if it's not a list, the specified value will be used for
             setting  both  compatibility  version  and  current  version.  If  unspecified,  the
             `soversion` will be used as per the aforementioned rules.

           dependencies list[dep]
             one or more dependency objects created with dependency or compiler.find_library (for
             external deps) or declare_dependency (for deps built by the project)

           extra_files str | file | custom_tgt | custom_idx
             Not used for the build itself but are shown as source files in IDEs that group files
             by targets (such as Visual Studio)

           gnu_symbol_visibility str, since 0.48.0
             Specifies  how  symbols  should  be  exported,  see  e.g  the  GCC  Wiki[7] for more
             information. This value  can  either  be  an  empty  string  or  one  of  `default`,
             `internal`,  `hidden`, `protected` or `inlineshidden`, which is the same as `hidden`
             but also includes things like C++ implicit constructors  as  specified  in  the  GCC
             manual. Ignored on compilers that do not support GNU visibility arguments.

           gui_app bool, default: false, deprecated since 0.56.0
             When  set  to  true  flags  this target as a GUI application on platforms where this
             makes a difference, deprecated since 0.56.0, use `win_subsystem` instead.

           implicit_include_directories bool, default: true, since 0.42.0
             Controls whether Meson adds the current source and build directories to the  include
             path

           include_directories list[inc | str]
             one or more objects created with the include_directories function, or (since 0.50.0)
             strings, which will be transparently expanded to include directory objects

           install bool, default: false
             When set to true, this executable should be installed.

           install_dir str
             override install directory for this file. If the value is a relative path,  it  will
             be  considered  relative  the  `prefix` option.  For example, if you want to install
             plugins  into  a  subdir,  you'd   use   something   like   this:   `install_dir   :
             get_option('libdir') / 'projectname-1.0'`.

           install_mode list[str | int], since 0.47.0
             Specify  the file mode in symbolic format and optionally the owner/uid and group/gid
             for the installed files.

             See the `install_mode` kwarg of install_data for more information.

           install_rpath str
             A string to set the target's rpath to  after  install  (but  not  before  that).  On
             Windows, this argument has no effect.

           install_tag str, since 0.60.0
             A  string used by the `meson install --tags` command to install only a subset of the
             files. By default all build  targets  have  the  tag  `runtime`  except  for  static
             libraries that have the `devel` tag.

           link_args list[str]
             Flags to use during linking. You can use UNIX-style flags here for all platforms.

           link_depends str | file | custom_tgt | custom_idx
             Strings,  files,  or  custom  targets  the  link  step  depends  on such as a symbol
             visibility map. The purpose is to automatically trigger a re-link  (but  not  a  re-
             compile) of the target when this file changes.

           link_language str, since 0.51.0
             Makes  the  linker  for  this target be for the specified language.  It is generally
             unnecessary to set this, as Meson will detect the right linker to use in most cases.
             There  are  only  two  cases  where  this  is  needed. One, your main function in an
             executable is not in the language Meson picked,  or  second  you  want  to  force  a
             library to use only one ABI.

             (broken until 0.55.0)

           link_whole list[lib | custom_tgt | custom_idx], since 0.40.0
             Links  all  contents  of  the  given  static libraries whether they are used or not,
             equivalent to the `-Wl,--whole-archive` argument flag of GCC, or the ´/WHOLEARCHIVE'
             MSVC  linker  option.  This  allows  the linked target to re-export symbols from all
             objects in the static libraries.

             (since 0.41.0) If passed a list that list will be flattened.

             (since 0.51.0) This argument also accepts outputs produced by  custom  targets.  The
             user must ensure that the output is a library in the correct format.

           link_with list[lib | custom_tgt | custom_idx]
             One  or  more  shared  or  static libraries (built by this project) that this target
             should be linked with. (since 0.41.0) If passed a list this list will be  flattened.
             (since  0.51.0)  The  arguments can also be custom targets.  In this case Meson will
             assume that merely adding the output file in the linker command line  is  sufficient
             to  make  linking work. If this is not sufficient, then the build system writer must
             write all other steps manually.

           name_prefix str | list[void]
             The string that will be used as  the  prefix  for  the  target  output  filename  by
             overriding  the  default  (only used for libraries). By default this is `lib` on all
             platforms and compilers, except for MSVC shared libraries where  it  is  omitted  to
             follow convention, and Cygwin shared libraries where it is `cyg`.

             Set this to `[]`, or omit the keyword argument for the default behaviour.

           name_suffix str | list[void]
             The  string  that  will  be  used  as the extension for the target by overriding the
             default. By default on Windows this is `exe` for executables and on other  platforms
             it is omitted.

             For  shared  libraries, the default value is `dylib` on macOS, `dll` on Windows, and
             `so` everywhere else.  For static libraries, it is  `a`  everywhere.  By  convention
             MSVC static libraries use the `lib` suffix, but we use `a` to avoid a potential name
             clash with shared libraries which  also  generate  import  libraries  with  a  `lib`
             suffix.

             Set this to `[]`, or omit the keyword argument for the default behaviour.

           native bool, default: false
             Controls whether the target is compiled for the build or host machines.

           objects list[extracted_obj | file | str]
             List of object files that should be linked in this target.

             Since  1.1.0  this  can include generated files in addition to object files that you
             don't have source to or that object files  produced  by  other  build  targets.   In
             earlier release, generated object files had to be placed in `sources`.

           override_options list[str] | dict[str | bool | int | list[str]], since 0.40.0
             takes  an  array  of  strings  in  the  same format as `project`'s `default_options`
             overriding the values of these options for  this  target  only.   (since  1.2.0):  A
             dictionary may now be passed.

           pic bool, since 0.36.0
             Builds the library as positional independent code (so it can be linked into a shared
             library). This option has no effect on Windows and OS X since it doesn't make  sense
             on Windows and PIC cannot be disabled on OS X.

           prelink bool, since 0.57.0
             If  `true`  the  object  files in the target will be prelinked, meaning that it will
             contain only one prelinked object file rather than the individual object files.

           rust_abi str, since 1.3.0
             Set the specific ABI to compile (when compiling rust).  - 'rust' (default): Create a
             "rlib" or "dylib" crate depending on the library type being build.
             -  'c':  Create  a "cdylib" or "staticlib" crate depending on the library type being
             build.

           rust_crate_type str, deprecated since 1.3.0, since 0.42.0
             Set the specific type of rust crate to compile (when compiling rust).

             If the target is an executable this defaults to "bin", the only allowed value.

             If it is a static_library it defaults to "lib", and may be  "lib",  "staticlib",  or
             "rlib".  If "lib" then Rustc will pick a default, "staticlib" means a C ABI library,
             "rlib" means a Rust ABI.

             If it is a shared_library it defaults to "lib", and may be "lib", "dylib", "cdylib",
             or  "proc-macro".  If  "lib"  then Rustc will pick a default, "cdylib" means a C ABI
             library, "dylib" means a Rust ABI, and "proc-macro" is  a  special  rust  procedural
             macro crate.

             "proc-macro" is new in 0.62.0.

             Since  1.3.0  this  is  deprecated  and  replaced  by  "rust_abi"  keyword argument.
             `proc_macro` crates are now handled by the `rust.proc_macro()`[8] method.

           rust_dependency_map dict[str], since 1.2.0
             On rust targets this provides a map of library names to the crate name with which it
             would be available inside the rust code.

             This  allows renaming similar to the dependency renaming feature of cargo or `extern
             crate foo as bar` inside rust code.

           sources str | file | custom_tgt | custom_idx | generated_list | structured_src
             Additional source files. Same as the source varargs.

           soversion str | int
             A string or integer specifying the soversion of this shared library, such as `0`. On
             Linux and Windows this is used to set the soversion (or equivalent) in the filename.
             For example, if `soversion` is `4`, a Windows DLL will be called `foo-4.dll` and one
             of  the  aliases  of the Linux shared library would be `libfoo.so.4`. If this is not
             specified, the first part of `version` is used instead (see below). For example,  if
             `version` is `3.6.0` and `soversion` is not defined, it is set to `3`.

           vala_args list[str | file]
             Compiler flags for Vala. Unlike other languages this may contain Files

           vala_shared_args list[str | file], since 1.3.0
             Arguments  that  are  only  passed  to  a  shared library Like `vala_args`, files is
             allowed in addition to string

           vala_static_args list[str | file], since 1.3.0
             Arguments that are only passed to  a  static  library  Like  `vala_args`,  files  is
             allowed in addition to string

           version str
             A  string  specifying  the version of this shared library, such as `1.1.0`. On Linux
             and OS X, this is used to set the shared library version in the  filename,  such  as
             `libfoo.so.1.1.0` and `libfoo.1.1.0.dylib`. If this is not specified, `soversion` is
             used instead (see above).

           vs_module_defs str | file | custom_tgt | custom_idx
             Specify a Microsoft module definition file for controlling symbol exports, etc.,  on
             platforms where that is possible (e.g. Windows).

             (Since 1.3.0) custom_idx are supported

           win_subsystem str, default: 'console', since 0.56.0
             Specifies  the subsystem type to use on the Windows platform. Typical values include
             `console` for text mode programs and `windows` for gui  apps.  The  value  can  also
             contain  version  specification such as `windows,6.0`. See MSDN documentation[9] for
             the full list.

   build_target()
       SYNOPSIS
           build_tgt build_target(
               target_name,
               source...,
               <lang>_args:,
               <lang>_pch:,
               <lang>_shared_args:,
               <lang>_static_args:,
               build_by_default: true,
               build_rpath:,
               d_debug:,
               d_import_dirs:,
               d_module_versions:,
               d_unittest: false,
               darwin_versions:,
               dependencies:,
               export_dynamic:,
               extra_files:,
               gnu_symbol_visibility:,
               gui_app: false,
               implib:,
               implicit_include_directories: true,
               include_directories:,
               install: false,
               install_dir:,
               install_mode:,
               install_rpath:,
               install_tag:,
               java_resources:,
               link_args:,
               link_depends:,
               link_language:,
               link_whole:,
               link_with:,
               main_class:,
               name_prefix:,
               name_suffix:,
               native: false,
               objects:,
               override_options:,
               pic:,
               pie:,
               prelink:,
               rust_abi:,
               rust_crate_type:,
               rust_dependency_map:,
               sources:,
               soversion:,
               target_type:,
               vala_args:,
               vala_shared_args:,
               vala_static_args:,
               version:,
               vs_module_defs:,
               win_subsystem: 'console',
           )

       DESCRIPTION
           Creates a build target whose type  can  be  set  dynamically  with  the  `target_type`
           keyword argument.

           `target_type` may be set to one of:

           - `executable` (see executable)
           - `shared_library` (see shared_library)
           - `shared_module` (see shared_module)
           - `static_library` (see static_library)
           - `both_libraries` (see both_libraries)
           - `library` (see library)
           - `jar` (see jar)*

           This declaration:
               executable(<arguments and keyword arguments>)
           is equivalent to this:
               build_target(<arguments and keyword arguments>, target_type : 'executable')
           The lists for the kwargs (such as `sources`, `objects`, and `dependencies`) are always
           flattened, which means you can freely nest and add  lists  while  creating  the  final
           list.

           The returned object also has methods that are documented in build_tgt.

           *"jar"  is  deprecated  because  it  is fundementally a different thing than the other
           build_target types.

       POSARGS
           target_name str, required
             The unique name of the build target

       VARARGS
           source str | file | custom_tgt | custom_idx | generated_list, 0...N times
             Input source to compile. The following types are supported:

             - Strings relative to the current source directory
             - file objects defined in any preceding build file
             - The return value of configure-time generators such as configure_file
             -  The  return  value  of   build-time   generators   such   as   custom_target   or
             generator.process

             These  input files can be sources, objects, libraries, or any other file. Meson will
             automatically categorize them based on the extension and use them  accordingly.  For
             instance,  sources  (`.c`, `.cpp`, `.vala`, `.rs`, etc) will be compiled and objects
             (`.o`, `.obj`) and libraries (`.so`, `.dll`, etc) will be linked.

             With the Ninja backend, Meson will create a build-time order-only  dependency[3]  on
             all  generated input files, including unknown files. This is needed to bootstrap the
             generation of the real dependencies in the depfile[4] generated by your compiler  to
             determine  when  to  rebuild  sources.  Ninja relies on this dependency file for all
             input files, generated  and  non-generated.   The  behavior  is  similar  for  other
             backends.

       KWARGS
           <lang>_args list[str]
             compiler flags to use for the given language; eg: `cpp_args` for C++

           <lang>_pch str
             precompiled header file to use for the given language

           <lang>_shared_args list[str], since 1.3.0
             Arguments that are only passed to a shared library

           <lang>_static_args list[str], since 1.3.0
             Arguments that are only passed to a static library

           build_by_default bool, default: true, since 0.38.0
             Causes,  when set to `true`, to have this target be built by default.  This means it
             will be built when `meson compile` is called  without  any  arguments.  The  default
             value is `true` for all built target types.

           build_rpath str, since 0.42.0
             A  string  to  add  to target's rpath definition in the build dir, but which will be
             removed on install

           d_debug list[str]
             The D version identifiers[5] to add during the compilation of D source files.

           d_import_dirs list[str]
             List of directories to look  in  for  string  imports  used  in  the  D  programming
             language.

           d_module_versions list[str | int]
             List of module version identifiers set when compiling D sources.

           d_unittest bool, default: false
             When set to true, the D modules are compiled in debug mode.

           darwin_versions str | int | list[str], since 0.48.0
             Defines  the  `compatibility  version` and `current version` for the dylib on macOS.
             If a list is specified, it must be either zero, one, or two elements.  If  only  one
             element  is  specified  or  if it's not a list, the specified value will be used for
             setting  both  compatibility  version  and  current  version.  If  unspecified,  the
             `soversion` will be used as per the aforementioned rules.

           dependencies list[dep]
             one or more dependency objects created with dependency or compiler.find_library (for
             external deps) or declare_dependency (for deps built by the project)

           export_dynamic bool, since 0.45.0
             when set to true causes the target's symbols to be
              dynamically exported, allowing modules built using the
              shared_module function to refer to functions,
              variables and other symbols defined in the executable itself. Implies
              the `implib` argument.

           extra_files str | file | custom_tgt | custom_idx
             Not used for the build itself but are shown as source files in IDEs that group files
             by targets (such as Visual Studio)

           gnu_symbol_visibility str, since 0.48.0
             Specifies  how  symbols  should  be  exported,  see  e.g  the  GCC  Wiki[6] for more
             information. This value  can  either  be  an  empty  string  or  one  of  `default`,
             `internal`,  `hidden`, `protected` or `inlineshidden`, which is the same as `hidden`
             but also includes things like C++ implicit constructors  as  specified  in  the  GCC
             manual. Ignored on compilers that do not support GNU visibility arguments.

           gui_app bool, default: false, deprecated since 0.56.0
             When  set  to  true  flags  this target as a GUI application on platforms where this
             makes a difference, deprecated since 0.56.0, use `win_subsystem` instead.

           implib bool | str, since 0.42.0
             When set to true, an import library is generated for the executable (the name of the
             import  library  is  based  on exe_name).  Alternatively, when set to a string, that
             gives the base name for the import library.  The import library  is  used  when  the
             returned build target object appears in `link_with:` elsewhere.  Only has any effect
             on platforms where that is meaningful (e.g. Windows). Implies  the  `export_dynamic`
             argument.

           implicit_include_directories bool, default: true, since 0.42.0
             Controls  whether Meson adds the current source and build directories to the include
             path

           include_directories list[inc | str]
             one or more objects created with the include_directories function, or (since 0.50.0)
             strings, which will be transparently expanded to include directory objects

           install bool, default: false
             When set to true, this executable should be installed.

           install_dir str
             override  install  directory for this file. If the value is a relative path, it will
             be considered relative the `prefix` option.  For example, if  you  want  to  install
             plugins   into   a   subdir,   you'd   use   something  like  this:  `install_dir  :
             get_option('libdir') / 'projectname-1.0'`.

           install_mode list[str | int], since 0.47.0
             Specify the file mode in symbolic format and optionally the owner/uid and  group/gid
             for the installed files.

             See the `install_mode` kwarg of install_data for more information.

           install_rpath str
             A  string  to  set  the  target's  rpath  to after install (but not before that). On
             Windows, this argument has no effect.

           install_tag str, since 0.60.0
             A string used by the `meson install --tags` command to install only a subset of  the
             files.  By  default  all  build  targets  have  the  tag `runtime` except for static
             libraries that have the `devel` tag.

           java_resources structured_src, since 0.62.0
             Resources to be added to the jar

           link_args list[str]
             Flags to use during linking. You can use UNIX-style flags here for all platforms.

           link_depends str | file | custom_tgt | custom_idx
             Strings, files, or custom targets  the  link  step  depends  on  such  as  a  symbol
             visibility  map.  The  purpose  is to automatically trigger a re-link (but not a re-
             compile) of the target when this file changes.

           link_language str, since 0.51.0
             Makes the linker for this target be for the specified  language.   It  is  generally
             unnecessary to set this, as Meson will detect the right linker to use in most cases.
             There are only two cases where this  is  needed.  One,  your  main  function  in  an
             executable  is  not  in  the  language  Meson  picked, or second you want to force a
             library to use only one ABI.

             (broken until 0.55.0)

           link_whole list[lib | custom_tgt | custom_idx], since 0.40.0
             Links all contents of the given static libraries  whether  they  are  used  or  not,
             equivalent to the `-Wl,--whole-archive` argument flag of GCC, or the ´/WHOLEARCHIVE'
             MSVC linker option. This allows the linked target  to  re-export  symbols  from  all
             objects in the static libraries.

             (since 0.41.0) If passed a list that list will be flattened.

             (since  0.51.0)  This  argument also accepts outputs produced by custom targets. The
             user must ensure that the output is a library in the correct format.

           link_with list[lib | custom_tgt | custom_idx]
             One or more shared or static libraries (built by  this  project)  that  this  target
             should  be linked with. (since 0.41.0) If passed a list this list will be flattened.
             (since 0.51.0) The arguments can also be custom targets.  In this  case  Meson  will
             assume  that  merely adding the output file in the linker command line is sufficient
             to make linking work. If this is not sufficient, then the build system  writer  must
             write all other steps manually.

           main_class str
             Main class for running the built jar

           name_prefix str | list[void]
             The  string  that  will  be  used  as  the  prefix for the target output filename by
             overriding the default (only used for libraries). By default this is  `lib`  on  all
             platforms  and  compilers,  except  for MSVC shared libraries where it is omitted to
             follow convention, and Cygwin shared libraries where it is `cyg`.

             Set this to `[]`, or omit the keyword argument for the default behaviour.

           name_suffix str | list[void]
             The string that will be used as the extension  for  the  target  by  overriding  the
             default.  By default on Windows this is `exe` for executables and on other platforms
             it is omitted.

             For shared libraries, the default value is `dylib` on macOS, `dll` on  Windows,  and
             `so`  everywhere  else.   For  static libraries, it is `a` everywhere. By convention
             MSVC static libraries use the `lib` suffix, but we use `a` to avoid a potential name
             clash  with  shared  libraries  which  also  generate  import libraries with a `lib`
             suffix.

             Set this to `[]`, or omit the keyword argument for the default behaviour.

           native bool, default: false
             Controls whether the target is compiled for the build or host machines.

           objects list[extracted_obj | file | str]
             List of object files that should be linked in this target.

             Since 1.1.0 this can include generated files in addition to object  files  that  you
             don't  have  source  to  or  that  object files produced by other build targets.  In
             earlier release, generated object files had to be placed in `sources`.

           override_options list[str] | dict[str | bool | int | list[str]], since 0.40.0
             takes an array of strings  in  the  same  format  as  `project`'s  `default_options`
             overriding  the  values  of  these  options  for this target only.  (since 1.2.0): A
             dictionary may now be passed.

           pic bool, since 0.36.0
             Builds the library as positional independent code (so it can be linked into a shared
             library).  This option has no effect on Windows and OS X since it doesn't make sense
             on Windows and PIC cannot be disabled on OS X.

           pie bool, since 0.49.0
             Build a position-independent executable.

           prelink bool, since 0.57.0
             If `true` the object files in the target will be prelinked,  meaning  that  it  will
             contain only one prelinked object file rather than the individual object files.

           rust_abi str, since 1.3.0
             Set the specific ABI to compile (when compiling rust).  - 'rust' (default): Create a
             "rlib" or "dylib" crate depending on the library type being build.
             - 'c': Create a "cdylib" or "staticlib" crate depending on the  library  type  being
             build.

           rust_crate_type str, deprecated since 1.3.0, since 0.42.0
             Set the specific type of rust crate to compile (when compiling rust).

             If the target is an executable this defaults to "bin", the only allowed value.

             If  it  is  a static_library it defaults to "lib", and may be "lib", "staticlib", or
             "rlib". If "lib" then Rustc will pick a default, "staticlib" means a C ABI  library,
             "rlib" means a Rust ABI.

             If it is a shared_library it defaults to "lib", and may be "lib", "dylib", "cdylib",
             or "proc-macro". If "lib" then Rustc will pick a default, "cdylib"  means  a  C  ABI
             library,  "dylib"  means  a  Rust ABI, and "proc-macro" is a special rust procedural
             macro crate.

             "proc-macro" is new in 0.62.0.

             Since 1.3.0  this  is  deprecated  and  replaced  by  "rust_abi"  keyword  argument.
             `proc_macro` crates are now handled by the `rust.proc_macro()`[7] method.

           rust_dependency_map dict[str], since 1.2.0
             On rust targets this provides a map of library names to the crate name with which it
             would be available inside the rust code.

             This allows renaming similar to the dependency renaming feature of cargo or  `extern
             crate foo as bar` inside rust code.

           sources str | file | custom_tgt | custom_idx | generated_list | structured_src
             Additional source files. Same as the source varargs.

           soversion str | int
             A string or integer specifying the soversion of this shared library, such as `0`. On
             Linux and Windows this is used to set the soversion (or equivalent) in the filename.
             For example, if `soversion` is `4`, a Windows DLL will be called `foo-4.dll` and one
             of the aliases of the Linux shared library would be `libfoo.so.4`. If  this  is  not
             specified,  the first part of `version` is used instead (see below). For example, if
             `version` is `3.6.0` and `soversion` is not defined, it is set to `3`.

           target_type str
             The actual target type to build

           vala_args list[str | file]
             Compiler flags for Vala. Unlike other languages this may contain Files

           vala_shared_args list[str | file], since 1.3.0
             Arguments that are only passed to  a  shared  library  Like  `vala_args`,  files  is
             allowed in addition to string

           vala_static_args list[str | file], since 1.3.0
             Arguments  that  are  only  passed  to  a  static library Like `vala_args`, files is
             allowed in addition to string

           version str
             A string specifying the version of this shared library, such as  `1.1.0`.  On  Linux
             and  OS  X,  this is used to set the shared library version in the filename, such as
             `libfoo.so.1.1.0` and `libfoo.1.1.0.dylib`. If this is not specified, `soversion` is
             used instead (see above).

           vs_module_defs str | file | custom_tgt | custom_idx, since 1.3.0
             Specify  a Microsoft module definition file for controlling symbol exports, etc., on
             platforms where that is possible (e.g. Windows).

             This can be used to expose which functions a shared_module loaded by  an  executable
             will be allowed to use.

           win_subsystem str, default: 'console', since 0.56.0
             Specifies  the subsystem type to use on the Windows platform. Typical values include
             `console` for text mode programs and `windows` for gui  apps.  The  value  can  also
             contain  version  specification such as `windows,6.0`. See MSDN documentation[8] for
             the full list.

   configuration_data()
       SYNOPSIS
           cfg_data configuration_data([data])

       DESCRIPTION
           Creates an empty configuration object. You should  add  your  configuration  with  the
           cfg_data method calls and finally use it in a call to configure_file.

       OPTARGS
           data dict[str | bool | int], since 0.49.0
             Optional dictionary to specify an initial data set. If provided, each key/value pair
             is added into the cfg_data object as if the cfg_data.set method was called for  each
             of them.

   configure_file()
       SYNOPSIS
           file configure_file(
               capture: false,
               command:,
               configuration:,
               copy: false,
               depfile:,
               encoding: 'utf-8',
               format: 'meson',
               input:,
               install: false,
               install_dir:,
               install_mode:,
               install_tag:,
               macro_name:,
               output:,
               output_format:,
           )

       DESCRIPTION
           This function can run in three modes depending on the keyword arguments passed to it.

           When  a cfg_data object is passed to the `configuration:` keyword argument, it takes a
           template file as the `input:` (optional) and  produces  the  `output:`  (required)  by
           substituting  values from the configuration data as detailed in the configuration file
           documentation[10]. (since 0.49.0) A dictionary can be passed  instead  of  a  cfg_data
           object.

           When  a  list  of  strings  is passed to the `command:` keyword argument, it takes any
           source or configured file as the `input:` and assumes that the `output:`  is  produced
           when the specified command is run.

           (since  0.47.0) When the `copy:` keyword argument is set to `true`, this function will
           copy the file provided in `input:` to a file in the  build  directory  with  the  name
           `output:` in the current directory.

       KWARGS
           capture bool, default: false, since 0.41.0
             When  this  argument  is  set  to true, Meson captures `stdout` of the `command` and
             writes it to the target file specified as `output`.

           command list[str | file | compiler | external_program | exe]
             As explained above, if specified, Meson does not create the file itself  but  rather
             runs  the  specified  command,  which allows you to do fully custom file generation.
             (since 0.52.0) The command can contain file objects and more than one  file  can  be
             passed  to  the `input` keyword argument, see custom_target for details about string
             substitutions.

           configuration cfg_data | dict[str | int | bool]
             As explained above, when passed this will provide the replacement data for the input
             file (if provided) or key value pairs to be written to the output.

           copy bool, default: false, since 0.47.0
             As explained above, if specified Meson only copies the file from input to output.

           depfile str, since 0.52.0
             A  dependency  file that the command can write listing all the additional files this
             target depends on. A change in any one of these files triggers a reconfiguration.

           encoding str, default: 'utf-8', since 0.47.0
             Set the file encoding for the input and output file.  The  supported  encodings  are
             those of python3, see standard-encodings[11].

           format str, default: 'meson', since 0.46.0
             The  format  of defines. It defaults to `'meson'`, and so substitutes `#mesondefine`
             statements and variables surrounded by `@` characters, you can also use `'cmake'` to
             replace  `#cmakedefine`  statements  and  variables  with  the `${variable}` syntax.
             Finally  you  can  use  `'cmake@'`  in  which  case  substitutions  will  apply   on
             `#cmakedefine` statements and variables with the `@variable@` syntax.

           input str | file
             The  input file name. If it's not specified in configuration mode, all the variables
             in the `configuration:` object (see above) are written to the `output:` file.

           install bool, default: false, since 0.50.0
             When  true,  this  generated  file  is  installed  during  the  install  step,   and
             `install_dir`  must  be  set  and  not empty. When false, this generated file is not
             installed regardless of the value of `install_dir`.  When  omitted  it  defaults  to
             true when `install_dir` is set and not empty, false otherwise.

           install_dir str | bool
             The  subdirectory  to  install  the  generated  file to (e.g. `share/myproject`), if
             omitted or given the value of empty string, the file is not installed.

           install_mode list[str | int | bool], since 0.47.0
             Specify the file mode in symbolic format and optionally the owner/uid and  group/gid
             for the installed files.

             See the `install_mode` kwarg of install_data for more information.

           install_tag str, since 0.60.0
             A  string used by the `meson install --tags` command to install only a subset of the
             files. By default the file has no install tag which means it is not being  installed
             when `--tags` argument is specified.

           macro_name str, since 1.3.0
             When specified, macro guards will be used instead of '#pragma once'. The macro guard
             name will be the specified name.

           output str
             The output file name. (since  0.41.0)  may  contain  `@PLAINNAME@`  or  `@BASENAME@`
             substitutions,  as well as (since 1.5.0) their indexed versions, like `@PLAINNAME0@`
             or `@BASENAME0@`.  In configuration mode, the permissions of the input file  (if  it
             is specified) are copied to the output file.

           output_format str, since 0.47.0
             The  format  of  the  output to generate when no input was specified. It defaults to
             `c`, in which case preprocessor directives will be prefixed with `#`, you  can  also
             use  `nasm`,  in  which case the prefix will be `%`. (since 1.3.0) `json` format can
             also be used.

       WARNINGS
           the `install_mode` kwarg ignored integer values between 0.62 -- 1.1.0.

   custom_target()
       SYNOPSIS
           custom_tgt custom_target(
               [name],
               build_always:,
               build_always_stale: false,
               build_by_default:,
               capture: false,
               command:,
               console:,
               depend_files:,
               depends:,
               depfile:,
               env:,
               feed: false,
               input:,
               install:,
               install_dir:,
               install_mode:,
               install_tag:,
               output:,
           )

       DESCRIPTION
           Create a custom top level build target. The only positional argument is  the  name  of
           this target and cannot contain path separators (`/` or ``).  The name of custom target
           might  not  be  used  by  every  backends,  for  instance  with  the  Ninja   backend,
           `subdir/meson.build`  containing  the example below, `ninja -C builddir foo` or `ninja
           -C builddir subdir/foo` won't work, it is instead `ninja -C builddir subdir/file.txt`.
           However, `meson compile subdir/foo` is accepted.
               custom_target('foo', output: 'file.txt', ...)
           Since  0.60.0  the name argument is optional and defaults to the basename of the first
           output (`file.txt` in the example above).

           The list of strings passed to the `command`  keyword  argument  accept  the  following
           special string substitutions:

           -  `@INPUT@`:  the full path to the input passed to `input`. If more than one input is
           specified, all of them will be substituted as separate arguments only if  the  command
           uses `'@INPUT@'` as a standalone-argument. For instance, this would not work: `command
           : ['cp', './@INPUT@']`, but this would: `command : ['cp', '@INPUT@']`.
           - `@OUTPUT@`: the full path to the output passed to `output`. If more than one outputs
           are specified, the behavior is the same as `@INPUT@`.
           -  `@INPUT0@`  `@INPUT1@`  `...`:  the full path to the input with the specified array
           index in `input`
           - `@OUTPUT0@` `@OUTPUT1@` `...`: the full path to the output with the specified  array
           index in `output`
           - `@OUTDIR@`: the full path to the directory where the output(s) must be written
           - `@DEPFILE@`: the full path to the dependency file passed to `depfile`
           - `@PLAINNAME@`: the input filename, without a path
           -  `@PLAINNAME0@`  `@PLAINNAME1@`  `...`  (since  1.5.0): the input filename without a
           path, with the specified array index in `input`
           - `@BASENAME@`: the input filename, with extension removed
           - `@BASENAME0@` `@BASENAME1@` `...` (since 1.5.0): the input filename  with  extension
           removed, with the specified array index in `input`
           -  `@PRIVATE_DIR@`  (since  0.50.1):  path to a directory where the custom target must
           store all its intermediate files.
           - `@SOURCE_ROOT@`: the path to the root of the source tree. Depending on the  backend,
           this may be an absolute or a relative to current workdir path.
           -  `@BUILD_ROOT@`:  the  path to the root of the build tree. Depending on the backend,
           this may be an absolute or a relative to current workdir path.
           -  `@CURRENT_SOURCE_DIR@`:  this  is  the  directory  where  the  currently  processed
           meson.build  is  located  in.   Depending on the backend, this may be an absolute or a
           relative to current workdir path.

           (since 0.47.0) The `depfile`  keyword  argument  also  accepts  the  `@BASENAME@`  and
           `@PLAINNAME@` substitutions.

           The returned object also has methods that are documented in custom_tgt.

       OPTARGS
           name str
             The unique id of the custom target

             This  posarg  is  optional  since  0.60.0.  It defaults to the basename of the first
             output.

       KWARGS
           build_always bool, deprecated since 0.47.0
             If `true` this target is always considered out of date and is  rebuilt  every  time.
             Equivalent to setting both `build_always_stale` and `build_by_default` to true.

           build_always_stale bool, default: false, since 0.47.0
             If  `true`  the  target is always considered out of date.  Useful for things such as
             build timestamps or revision control tags.  The associated command is  run  even  if
             the outputs are up to date.

           build_by_default bool, since 0.38.0
             Causes,  when  set  to  true, to have this target be built by default. This means it
             will be built when `meson compile` is called  without  any  arguments.  The  default
             value is `false`.

             (since  0.50.0)  If `build_by_default` is explicitly set to false, `install` will no
             longer override it. If `build_by_default` is not set, `install` will still determine
             its default.

           capture bool, default: false
             There  are  some  compilers  that  can't be told to write their output to a file but
             instead write it to standard output. When  this  argument  is  set  to  true,  Meson
             captures  `stdout` and writes it to the target file. Note that your command argument
             list may not contain `@OUTPUT@` when capture mode is active.

           command list[str  |  file  |  exe  |  external_program  |  custom_tgt  |  build_tgt  |
           custom_idx]
             Command  to  run  to  create  outputs from inputs. The command may be strings or the
             return value of functions  that  return  file-like  objects  such  as  find_program,
             executable,  configure_file,  files,  custom_target,  etc.  Meson will automatically
             insert the appropriate dependencies on targets and  files  listed  in  this  keyword
             argument.   Note:  always  specify  commands in array form `['commandname', ´-arg1',
             '-arg2']` rather than as a string `'commandname -arg1 -arg2'` as the latter will not
             work.

           console bool, since 0.48.0
             Keyword  argument  conflicts  with  `capture`,  and  is  meant for commands that are
             resource-intensive and take a long time to finish. With the Ninja  backend,  setting
             this  will  add  this  target  to  Ninja's  `console`  pool[12],  which  has special
             properties such as not buffering stdout and serializing all targets in this pool.

           depend_files list[str | file]
             files (str, file, or the return value of configure_file that this target depends  on
             but  are  not  listed  in  the  `command`  keyword argument. Useful for adding regen
             dependencies.

           depends list[build_tgt | custom_tgt | custom_idx]
             Specifies that this target depends on the specified target(s), even though  it  does
             not  take  any of them as a command line argument. This is meant for cases where you
             have a tool that e.g. does globbing internally. Usually  you  should  just  put  the
             generated  sources  as  inputs  and Meson will set up all dependencies automatically
             (custom_idx was unavailable as a type between 0.60 and 1.4.0).

           depfile str
             A dependency file that the command can write listing all the additional  files  this
             target  depends  on,  for  example  a  C compiler would list all the header files it
             included, and a change in any one of these files triggers a recompilation.

             (since 0.47.0) the `@BASENAME@` and `@PLAINNAME@` substitutions are also accepted.

           env env | list[str] | dict[str], since 0.57.0
             environment variables to set, such as `{'NAME1': 'value1',  'NAME2':  'value2'}`  or
             `['NAME1=value1', 'NAME2=value2']`, or an env object which allows more sophisticated
             environment juggling.

           feed bool, default: false, since 0.59.0
             There are some compilers that can't be told to read their  input  from  a  file  and
             instead  read  it  from  standard  input. When this argument is set to `true`, Meson
             feeds the input file to `stdin`. Note  that  your  argument  list  may  not  contain
             `@INPUT@` when feed mode is active.

           input  list[str  |  file  |  build_tgt  | custom_idx | custom_tgt | external_program |
           extracted_obj | generated_list]
             List of source files. (since 0.41.0) the list is flattened.

           install bool
             When true, one or more files of this target are installed during  the  install  step
             (see `install_dir` for details).

           install_dir bool | str | list[bool | str]
             If  only one install_dir is provided, all outputs are installed there.  Since 0.40.0
             Allows you to specify the installation directory for each corresponding output.  For
             example:
                 custom_target('different-install-dirs',
                   output : ['first.file', 'second.file'],
                   install : true,
                   install_dir : ['somedir', 'otherdir'])
             This would install `first.file` to `somedir` and `second.file` to `otherdir`.

             To  only  install  some  outputs,  pass  `false` for the outputs that you don't want
             installed. For example:
                     custom_target('only-install-second',
                       output : ['first.file', 'second.file'],
                       install : true,
                       install_dir : [false, 'otherdir'])
             This would install `second.file` to `otherdir` and not install `first.file`.

           install_mode list[str | int | bool], since 0.47.0
             The file mode and optionally the owner/uid and group/gid.   See  the  `install_mode`
             kwarg of install_data for more information.

           install_tag list[str | bool], since 0.60.0
             A  list  of  strings,  one per output, used by the `meson install --tags` command to
             install only a subset of the files.

             By default all outputs have no install tag which means they are not being  installed
             when  `--tags`  argument  is  specified. If only one tag is specified, it is assumed
             that all outputs have the same tag. `false` can be used for outputs that have no tag
             or are not installed.

           output list[str]
             List of output files.

       NOTES
           Assuming that `command:` is executed by a POSIX `sh` shell is not portable, notably to
           Windows. Instead, consider using a `native: true` executable, or a python script.
       WARNINGS
           the `install_mode` kwarg ignored integer values between 0.60.0 -- 1.1.0.

   debug()
       SYNOPSIS
           void debug(message, msg...)

           since 0.63.0

       DESCRIPTION
           Write the argument string to the meson build log.

       POSARGS
           message str | int | bool | list[str | int | bool] | dict[str | int | bool], required
             The message to print

       VARARGS
           msg str | int | bool | list[str | int | bool] | dict[str | int | bool], 0...N times
             Additional parameters will be separated by spaces

   declare_dependency()
       SYNOPSIS
           dep declare_dependency(
               compile_args:,
               d_import_dirs:,
               d_module_versions:,
               dependencies:,
               extra_files:,
               include_directories:,
               link_args:,
               link_whole:,
               link_with:,
               objects:,
               sources:,
               variables:,
               version:,
           )

       DESCRIPTION
           This function returns a dep object that behaves like the return  value  of  dependency
           but  is  internal  to the current build. The main use case for this is in subprojects.
           This allows a subproject to easily specify how  it  should  be  used.  This  makes  it
           interchangeable with the same dependency that is provided externally by the system.

       KWARGS
           compile_args list[str]
             Compile arguments to use.

           d_import_dirs list[inc | str], since 0.62.0
             the  directories  to add to the string search path (i.e. `-J` switch for DMD).  Must
             be inc objects or plain strings.

           d_module_versions str | int | list[str | int], since 0.62.0
             The D version identifiers[5] to add during the compilation of D source files.

           dependencies list[dep]
             Other dependencies needed to use this dependency.

           extra_files list[str | file], since 1.2.0
             extra files to add to targets.  mostly used for IDE integration.

           include_directories list[inc | str]
             the directories to add to header search path, must be inc objects or (since  0.50.0)
             plain strings.

           link_args list[str]
             Link arguments to use.

           link_whole list[lib], since 0.46.0
             Libraries to link fully, same as executable.

           link_with list[lib]
             Libraries to link against.

           objects list[extracted_obj], since 1.1.0
             a  list  of  object  files,  to  be  linked  directly  into the targets that use the
             dependency.

           sources list[str | file | custom_tgt | custom_idx | generated_list]
             sources to add to targets (or generated header files that  should  be  built  before
             sources including them are built)

           variables dict[str] | list[str], since 0.54.0
             a  dictionary  of  arbitrary  strings, this is meant to be used in subprojects where
             special variables would be provided via cmake or pkg-config.  since  0.56.0  it  can
             also be a list of `'key=value'` strings.

           version str
             the version of this dependency, such as `1.2.3`. Defaults to the project version.

   dependency()
       SYNOPSIS
           dep dependency(
               names...,
               allow_fallback:,
               default_options:,
               disabler: false,
               fallback:,
               include_type: 'preserve',
               language:,
               method: 'auto',
               native: false,
               not_found_message:,
               required: true,
               static: false,
               version:,
           )

       DESCRIPTION
           Finds  an  external  dependency  (usually a library installed on your system) with the
           given name with `pkg-config` and with CMake[13] if `pkg-config`  fails.  Additionally,
           frameworks  (OSX  only)  and  library-specific  fallback  detection logic[14] are also
           supported.

           Since 0.60.0 more than one name can be provided, they will be tried in order  and  the
           first name to be found will be used. The fallback subproject will be used only if none
           of the names are found on the system. Once one of the name has been found,  all  other
           names  are  added into the cache so subsequent calls for any of those name will return
           the same value. This is useful in case a dependency could have different  names,  such
           as `png` and `libpng`.

            Since  0.64.0*  a  dependency fallback can be provided by WrapDB. Simply download the
           database locally using `meson wrap update-db` command  and  Meson  will  automatically
           fallback  to  subprojects  provided  by  WrapDB  if the dependency is not found on the
           system and the project does not ship their own `.wrap` file.

           Dependencies can also be resolved in two other ways:

           * if the same name was used in a `meson.override_dependency`  prior  to  the  call  to
           `dependency`, the overriding dependency will be returned unconditionally; that is, the
           overriding dependency will be used independent of whether an  external  dependency  is
           installed in the system. Typically, `meson.override_dependency` will have been used by
           a subproject.

           * by a fallback subproject which, if needed, will be brought into  the  current  build
           specification  as  if  `subproject()` had been called. The subproject can be specified
           with the `fallback` argument.  Alternatively, if the `fallback`  argument  is  absent,
           since  0.55.0  Meson  can  automatically identify a subproject as a fallback if a wrap
           file provides[15] the dependency, or  if  a  subproject  has  the  same  name  as  the
           dependency. In the latter case, the subproject must use `meson.override_dependency` to
           specify  the  replacement,  or  Meson  will  report  a  hard  error.   See  the   Wrap
           documentation[14] for more details.  This automatic search can be controlled using the
           `allow_fallback` keyword argument.

           If `dependency_name` is `''`, the dependency is always not found. So  with  `required:
           false`, this always returns a dependency object for which the `found()` method returns
           `false`, and which can be passed like any  other  dependency  to  the  `dependencies:`
           keyword argument of a `build_target`. This can be used to implement a dependency which
           is sometimes not  required  e.g.  in  some  branches  of  a  conditional,  or  with  a
           `fallback:`  kwarg,  can  be used to declare an optional dependency that only looks in
           the specified subproject, and only if that's allowed by `--wrap-mode`.

           The returned object dep also has additional methods.

       VARARGS
           names str, 1...N times, since 0.60.0
             The names of the dependency to look up. The dependencies are looked up in the  order
             they  are  provided here. The first found dependency will then be used. The fallback
             subproject will be used only if none of the names are found on the system. Once  one
             of  the  name has been found, all other names are added into the cache so subsequent
             calls for any of those name will return the same value. This is  useful  in  case  a
             dependency could have different names, such as `png` and `libpng`.

             NOTE: Before 0.60.0 only a single dependency name was allowed.

       KWARGS
           allow_fallback bool, since 0.56.0
             Specifies  whether Meson should automatically pick a fallback subproject in case the
             dependency is not found in the system.  If `true` and the dependency is not found on
             the  system,  Meson  will fallback to a subproject that provides this dependency. If
             `false`, Meson will not fallback even if a subproject provides this dependency.   By
             default,  Meson  will  do  so if `required` is `true` or  `enabled`[0]; see the Wrap
             documentation[14] for more details.

           default_options list[str] | dict[str | bool | int | list[str]], since 0.38.0
             An array of default option values  that  override  those  set  in  the  subproject's
             `meson.options` (like `default_options` in project, they only have effect when Meson
             is run for the first time, and command line arguments override any  default  options
             in build files) (since 1.2.0): A dictionary may now be passed.

           disabler bool, default: false, since 0.49.0
             Returns  a disabler object instead of a not-found dependency if this kwarg is set to
             `true` and the dependency couldn't be found.

           fallback list[str] | str
             Manually specifies a subproject fallback to use in case the dependency is not  found
             in  the  system.  This is useful if the automatic search is not applicable or if you
             want to support versions of Meson older than 0.55.0.   If  the  value  is  an  array
             `['subproj_name', 'subproj_dep']`, the first value is the name of the subproject and
             the second is the variable name in that subproject that contains a dependency object
             such  as  the  return value of declare_dependency or dependency, etc. Note that this
             means the fallback dependency may be a not-found dependency, in which case the value
             of  the  `required:`  kwarg  will be obeyed.  Since 0.54.0 the value can be a single
             string,  the   subproject   name;   in   this   case   the   subproject   must   use
             `meson.override_dependency('dependency_name',    subproj_dep)`    to   specify   the
             dependency object used in the superproject.  If the value is an empty list,  it  has
             the same effect as `allow_fallback: false`.

           include_type str, default: 'preserve', since 0.52.0
             An enum flag, marking how the dependency flags should be converted. Supported values
             are `'preserve'`, `'system'` and `'non-system'`. System dependencies may be  handled
             differently on some platforms, for instance, using `-isystem` instead of `-I`, where
             possible.  If `include_type` is set to `'preserve'`, no additional  conversion  will
             be performed.

           language str, since 0.42.0
             Defines  what  language-specific  dependency  to find if it's available for multiple
             languages.

           method str, default: 'auto', since 0.40.0
             Defines the way the dependency is  detected,  the  default  is  `auto`  but  can  be
             overridden to be e.g. `qmake` for Qt development, and different dependencies support
             different values[16] for this (though `auto` will work on all of them)

           native bool, default: false
             If set to `true`, causes Meson to find the dependency on the  build  machine  system
             rather  than  the  host  system  (i.e. where the cross compiled binary will run on),
             usually only needed if you build a tool to be used during compilation.

           not_found_message str, since 0.50.0
             An optional string that will be printed as a  message  if  the  dependency  was  not
             found.

           required bool | feature, default: true
             When set to `false`, Meson will proceed with the build even if the dependency is not
             found.

             When set to a `feature`[0] option, the feature will control if it  is  searched  and
             whether to fail if not found.

             (since 0.47.0) The value of a `feature` option can also be passed.

           static bool, default: false
             Tells the dependency provider to try to get static libraries instead of dynamic ones
             (note that this is not supported by all dependency backends)

             Since 0.60.0 it also sets  `default_library`  option  accordingly  on  the  fallback
             subproject if it was not set explicitly in `default_options` keyword argument.

           version list[str] | str, since 0.37.0
             Specifies  the  required version, a string containing a comparison operator followed
             by the version string, examples include `>1.0.0`, `<=2.3.5`  or  `3.1.4`  for  exact
             matching.   You  can  also  specify  multiple restrictions by passing a list to this
             keyword argument, such as: `['>=3.14.0', '<=4.1.0']`.  These requirements are  never
             met if the version is unknown.

       NOTES
           This function supports additional library-specific[13] keyword arguments that may also
           be accepted (e.g. `modules` specifies submodules to use for dependencies such  as  Qt5
           or  Boost.  `components`  allows  the  user to manually add CMake `COMPONENTS` for the
           `find_package` lookup)

   disabler()
       SYNOPSIS
           disabler disabler()

           since 0.44.0

       DESCRIPTION
           Returns a disabler object.

   environment()
       SYNOPSIS
           env environment([env], method:, separator:)

           since 0.35.0

       DESCRIPTION
           Returns an empty env object.

       OPTARGS
           env str | list[str] | dict[str] | dict[list[str]], since 0.52.0
             If provided, each key/value pair is added into the env object as if  env.set  method
             was  called for each of them.  Since 0.62.0 list of strings is allowed in dictionary
             values. In that case values are joined using the separator.

       KWARGS
           method str, since 0.62.0
             Must be one of 'set', 'prepend',  or  'append'  (defaults  to  'set').  Controls  if
             initial  values  defined in the first positional argument are prepended, appended or
             replace the current value of the environment variable.

           separator str, since 0.62.0
             The separator to use  for  the  initial  values  defined  in  the  first  positional
             argument.  If  not  explicitly  specified,  the  default path separator for the host
             operating system will be used, i.e. ';' for Windows and ':' for UNIX/POSIX systems.

   error()
       SYNOPSIS
           void error(message, msg...)

       DESCRIPTION
           Print the argument string and halts the build process.

       POSARGS
           message str, required
             The message to print

       VARARGS
           msg str, 0...N times, since 0.58.0
             Additional parameters will be separated by spaces

   executable()
       SYNOPSIS
           exe executable(
               target_name,
               source...,
               <lang>_args:,
               <lang>_pch:,
               build_by_default: true,
               build_rpath:,
               d_debug:,
               d_import_dirs:,
               d_module_versions:,
               d_unittest: false,
               dependencies:,
               export_dynamic:,
               extra_files:,
               gnu_symbol_visibility:,
               gui_app: false,
               implib:,
               implicit_include_directories: true,
               include_directories:,
               install: false,
               install_dir:,
               install_mode:,
               install_rpath:,
               install_tag:,
               link_args:,
               link_depends:,
               link_language:,
               link_whole:,
               link_with:,
               name_prefix:,
               name_suffix:,
               native: false,
               objects:,
               override_options:,
               pie:,
               rust_crate_type:,
               rust_dependency_map:,
               sources:,
               vala_args:,
               vs_module_defs:,
               win_subsystem: 'console',
           )

       DESCRIPTION
           Creates a new executable. The first argument specifies  its  name  and  the  remaining
           positional arguments define the input files to use.

           The lists for the kwargs (such as `sources`, `objects`, and `dependencies`) are always
           flattened, which means you can freely nest and add  lists  while  creating  the  final
           list.

           The returned object also has methods that are documented in exe.

           Since  1.3.0  executable names can be the same across multiple targets as long as they
           each have a different `name_suffix`.

       POSARGS
           target_name str, required
             The unique name of the build target

       VARARGS
           source str | file | custom_tgt | custom_idx | generated_list, 0...N times
             Input source to compile. The following types are supported:

             - Strings relative to the current source directory
             - file objects defined in any preceding build file
             - The return value of configure-time generators such as configure_file
             -  The  return  value  of   build-time   generators   such   as   custom_target   or
             generator.process

             These  input files can be sources, objects, libraries, or any other file. Meson will
             automatically categorize them based on the extension and use them  accordingly.  For
             instance,  sources  (`.c`, `.cpp`, `.vala`, `.rs`, etc) will be compiled and objects
             (`.o`, `.obj`) and libraries (`.so`, `.dll`, etc) will be linked.

             With the Ninja backend, Meson will create a build-time order-only  dependency[3]  on
             all  generated input files, including unknown files. This is needed to bootstrap the
             generation of the real dependencies in the depfile[4] generated by your compiler  to
             determine  when  to  rebuild  sources.  Ninja relies on this dependency file for all
             input files, generated  and  non-generated.   The  behavior  is  similar  for  other
             backends.

       KWARGS
           <lang>_args list[str]
             compiler flags to use for the given language; eg: `cpp_args` for C++

           <lang>_pch str
             precompiled header file to use for the given language

           build_by_default bool, default: true, since 0.38.0
             Causes,  when set to `true`, to have this target be built by default.  This means it
             will be built when `meson compile` is called  without  any  arguments.  The  default
             value is `true` for all built target types.

           build_rpath str, since 0.42.0
             A  string  to  add  to target's rpath definition in the build dir, but which will be
             removed on install

           d_debug list[str]
             The D version identifiers[5] to add during the compilation of D source files.

           d_import_dirs list[str]
             List of directories to look  in  for  string  imports  used  in  the  D  programming
             language.

           d_module_versions list[str | int]
             List of module version identifiers set when compiling D sources.

           d_unittest bool, default: false
             When set to true, the D modules are compiled in debug mode.

           dependencies list[dep]
             one or more dependency objects created with dependency or compiler.find_library (for
             external deps) or declare_dependency (for deps built by the project)

           export_dynamic bool, since 0.45.0
             when set to true causes the target's symbols to be
              dynamically exported, allowing modules built using the
              shared_module function to refer to functions,
              variables and other symbols defined in the executable itself. Implies
              the `implib` argument.

           extra_files str | file | custom_tgt | custom_idx
             Not used for the build itself but are shown as source files in IDEs that group files
             by targets (such as Visual Studio)

           gnu_symbol_visibility str, since 0.48.0
             Specifies  how  symbols  should  be  exported,  see  e.g  the  GCC  Wiki[6] for more
             information. This value  can  either  be  an  empty  string  or  one  of  `default`,
             `internal`,  `hidden`, `protected` or `inlineshidden`, which is the same as `hidden`
             but also includes things like C++ implicit constructors  as  specified  in  the  GCC
             manual. Ignored on compilers that do not support GNU visibility arguments.

           gui_app bool, default: false, deprecated since 0.56.0
             When  set  to  true  flags  this target as a GUI application on platforms where this
             makes a difference, deprecated since 0.56.0, use `win_subsystem` instead.

           implib bool | str, since 0.42.0
             When set to true, an import library is generated for the executable (the name of the
             import  library  is  based  on exe_name).  Alternatively, when set to a string, that
             gives the base name for the import library.  The import library  is  used  when  the
             returned build target object appears in `link_with:` elsewhere.  Only has any effect
             on platforms where that is meaningful (e.g. Windows). Implies  the  `export_dynamic`
             argument.

           implicit_include_directories bool, default: true, since 0.42.0
             Controls  whether Meson adds the current source and build directories to the include
             path

           include_directories list[inc | str]
             one or more objects created with the include_directories function, or (since 0.50.0)
             strings, which will be transparently expanded to include directory objects

           install bool, default: false
             When set to true, this executable should be installed.

           install_dir str
             override  install  directory for this file. If the value is a relative path, it will
             be considered relative the `prefix` option.  For example, if  you  want  to  install
             plugins   into   a   subdir,   you'd   use   something  like  this:  `install_dir  :
             get_option('libdir') / 'projectname-1.0'`.

           install_mode list[str | int], since 0.47.0
             Specify the file mode in symbolic format and optionally the owner/uid and  group/gid
             for the installed files.

             See the `install_mode` kwarg of install_data for more information.

           install_rpath str
             A  string  to  set  the  target's  rpath  to after install (but not before that). On
             Windows, this argument has no effect.

           install_tag str, since 0.60.0
             A string used by the `meson install --tags` command to install only a subset of  the
             files.  By  default  all  build  targets  have  the  tag `runtime` except for static
             libraries that have the `devel` tag.

           link_args list[str]
             Flags to use during linking. You can use UNIX-style flags here for all platforms.

           link_depends str | file | custom_tgt | custom_idx
             Strings, files, or custom targets  the  link  step  depends  on  such  as  a  symbol
             visibility  map.  The  purpose  is to automatically trigger a re-link (but not a re-
             compile) of the target when this file changes.

           link_language str, since 0.51.0
             Makes the linker for this target be for the specified  language.   It  is  generally
             unnecessary to set this, as Meson will detect the right linker to use in most cases.
             There are only two cases where this  is  needed.  One,  your  main  function  in  an
             executable  is  not  in  the  language  Meson  picked, or second you want to force a
             library to use only one ABI.

             (broken until 0.55.0)

           link_whole list[lib | custom_tgt | custom_idx], since 0.40.0
             Links all contents of the given static libraries  whether  they  are  used  or  not,
             equivalent to the `-Wl,--whole-archive` argument flag of GCC, or the ´/WHOLEARCHIVE'
             MSVC linker option. This allows the linked target  to  re-export  symbols  from  all
             objects in the static libraries.

             (since 0.41.0) If passed a list that list will be flattened.

             (since  0.51.0)  This  argument also accepts outputs produced by custom targets. The
             user must ensure that the output is a library in the correct format.

           link_with list[lib | custom_tgt | custom_idx]
             One or more shared or static libraries (built by  this  project)  that  this  target
             should  be linked with. (since 0.41.0) If passed a list this list will be flattened.
             (since 0.51.0) The arguments can also be custom targets.  In this  case  Meson  will
             assume  that  merely adding the output file in the linker command line is sufficient
             to make linking work. If this is not sufficient, then the build system  writer  must
             write all other steps manually.

           name_prefix str | list[void]
             The  string  that  will  be  used  as  the  prefix for the target output filename by
             overriding the default (only used for libraries). By default this is  `lib`  on  all
             platforms  and  compilers,  except  for MSVC shared libraries where it is omitted to
             follow convention, and Cygwin shared libraries where it is `cyg`.

             Set this to `[]`, or omit the keyword argument for the default behaviour.

           name_suffix str | list[void]
             The string that will be used as the extension  for  the  target  by  overriding  the
             default.  By default on Windows this is `exe` for executables and on other platforms
             it is omitted.

             For shared libraries, the default value is `dylib` on macOS, `dll` on  Windows,  and
             `so`  everywhere  else.   For  static libraries, it is `a` everywhere. By convention
             MSVC static libraries use the `lib` suffix, but we use `a` to avoid a potential name
             clash  with  shared  libraries  which  also  generate  import libraries with a `lib`
             suffix.

             Set this to `[]`, or omit the keyword argument for the default behaviour.

           native bool, default: false
             Controls whether the target is compiled for the build or host machines.

           objects list[extracted_obj | file | str]
             List of object files that should be linked in this target.

             Since 1.1.0 this can include generated files in addition to object  files  that  you
             don't  have  source  to  or  that  object files produced by other build targets.  In
             earlier release, generated object files had to be placed in `sources`.

           override_options list[str] | dict[str | bool | int | list[str]], since 0.40.0
             takes an array of strings  in  the  same  format  as  `project`'s  `default_options`
             overriding  the  values  of  these  options  for this target only.  (since 1.2.0): A
             dictionary may now be passed.

           pie bool, since 0.49.0
             Build a position-independent executable.

           rust_crate_type str, deprecated since 1.3.0, since 0.42.0
             Set the specific type of rust crate to compile (when compiling rust).

             If the target is an executable this defaults to "bin", the only allowed value.

             If it is a static_library it defaults to "lib", and may be  "lib",  "staticlib",  or
             "rlib".  If "lib" then Rustc will pick a default, "staticlib" means a C ABI library,
             "rlib" means a Rust ABI.

             If it is a shared_library it defaults to "lib", and may be "lib", "dylib", "cdylib",
             or  "proc-macro".  If  "lib"  then Rustc will pick a default, "cdylib" means a C ABI
             library, "dylib" means a Rust ABI, and "proc-macro" is  a  special  rust  procedural
             macro crate.

             "proc-macro" is new in 0.62.0.

             Since  1.3.0  this  is  deprecated  and  replaced  by  "rust_abi"  keyword argument.
             `proc_macro` crates are now handled by the `rust.proc_macro()`[7] method.

           rust_dependency_map dict[str], since 1.2.0
             On rust targets this provides a map of library names to the crate name with which it
             would be available inside the rust code.

             This  allows renaming similar to the dependency renaming feature of cargo or `extern
             crate foo as bar` inside rust code.

           sources str | file | custom_tgt | custom_idx | generated_list | structured_src
             Additional source files. Same as the source varargs.

           vala_args list[str | file]
             Compiler flags for Vala. Unlike other languages this may contain Files

           vs_module_defs str | file | custom_tgt | custom_idx, since 1.3.0
             Specify a Microsoft module definition file for controlling symbol exports, etc.,  on
             platforms where that is possible (e.g. Windows).

             This  can  be used to expose which functions a shared_module loaded by an executable
             will be allowed to use.

           win_subsystem str, default: 'console', since 0.56.0
             Specifies the subsystem type to use on the Windows platform. Typical values  include
             `console`  for  text  mode  programs  and `windows` for gui apps. The value can also
             contain version specification such as `windows,6.0`. See MSDN  documentation[8]  for
             the full list.

       WARNINGS
           The `link_language` kwarg was broken until 0.55.0

   files()
       SYNOPSIS
           list[file] files(file...)

       DESCRIPTION
           This command takes the strings given to it in arguments and returns corresponding File
           objects that you can use as sources for build targets. The  difference  is  that  file
           objects remember the subdirectory they were defined in and can be used anywhere in the
           source tree.

       VARARGS
           file str, 0...N times
             Path to the file.

       EXAMPLE
           As an example suppose you have source file `foo.cpp` in subdirectory  `bar1`  and  you
           would  like to use it in a build target that is defined in `bar2`. To make this happen
           you first create the object in `bar1` like this:
                   foofile = files('foo.cpp')
           Then you can use it in `bar2` like this:
                   executable('myprog', 'myprog.cpp', foofile, ...)
           Meson will then do the right thing.

   find_program()
       SYNOPSIS
           external_program | exe find_program(
               program_name,
               fallback...,
               default_options:,
               dirs:,
               disabler: false,
               native: false,
               required: true,
               version:,
               version_argument:,
           )

       DESCRIPTION
           `program_name` here is a string that can be an executable or script to be searched for
           in `PATH` or other places inside the project.  The search order is:

           1. Program overrides set via meson.override_find_program 1. `[provide]` sections[14]
             in subproject wrap files, if `wrap_mode`[17] is
             set  to  `forcefallback`  1.  `[binaries]`  section[18]  in  your  machine  files 1.
           Directories provided using the `dirs:` kwarg (see  below)  1.  Project's  source  tree
           relative to the current subdir
              - If you use the return value of configure_file, the
                current  subdir  inside  the  build  tree  is  used instead 1. `PATH` environment
           variable 1. `[provide]` sections[14] in
             subproject wrap files, if `wrap_mode`[16] is
             set to anything other than `nofallback`

           Meson will also autodetect  scripts  with  a  shebang  line  and  run  them  with  the
           executable/interpreter  specified in it both on Windows (because the command invocator
           will reject the command otherwise) and Unixes (if the script file does  not  have  the
           executable  bit  set).   Hence,  you must not manually add the interpreter while using
           this script as part of a list of commands. Since 0.50.0 if the  "python3"  program  is
           requested  and  it  is  not  found  in  the  system,  Meson  will  return  its current
           interpreter.

           If you need to check for a program in a non-standard location, you can  just  pass  an
           absolute path to `find_program`, e.g.
               setcap  =  find_program('setcap',  '/usr/sbin/setcap',  '/sbin/setcap', required :
               false)
           It is also possible to pass an array to `find_program` in case you need  to  construct
           the set of paths to search on the fly:
               setcap  =  find_program(['setcap', '/usr/sbin/setcap', '/sbin/setcap'], required :
               false)
           Since 1.2.0 `find_program('meson')` is automatically overridden to the  Meson  command
           used to execute the build script.

           The returned external_program object also has documented methods.

       POSARGS
           program_name str | file, required
             The name of the program to search, or a file object to be used without searching.

       VARARGS
           fallback str | file, 0...N times, since 0.37.0
             These parameters are used as fallback names to search for.  This is meant to be used
             for cases where the program may have many  alternative  names,  such  as  `foo`  and
             `foo.py`.  The  function  will  check for the arguments one by one and the first one
             that is found is returned.

       KWARGS
           default_options list[str] | dict[str | bool | int | list[str]], since 1.3.0
             An array of default option values  that  override  those  set  in  the  subproject's
             `meson.options` (like `default_options` in project, they only have effect when Meson
             is run for the first time, and command line arguments override any  default  options
             in build files)

           dirs list[str], since 0.53.0
             extra list of absolute paths where to look for program names.

           disabler bool, default: false, since 0.49.0
             If  `true`  and the program couldn't be found, return a disabler object instead of a
             not-found object.

           native bool, default: false, since 0.43.0
             Defines how this executable should be searched. By default it  is  set  to  `false`,
             which  causes  Meson  to first look for the executable in the cross file (when cross
             building) and if it is not defined there, then from the system. If  set  to  `true`,
             the cross file is ignored and the program is only searched from the system.

           required bool | feature, default: true
             When  `true`,  Meson will abort if no program can be found.  If `required` is set to
             `false`, Meson continue even if none of the programs can be found. You can then  use
             the `.found()` method on the returned external_program to check whether it was found
             or not. (since 0.47.0) The value of a `feature`[0] option can also be passed to  the
             `required` keyword argument.

           version list[str], since 0.52.0
             Specifies  the required version, see dependency for argument format. By default, the
             version of the program is determined by running `program_name --version` command. If
             stdout is empty it fallbacks to stderr. If the output contains more text than simply
             a version number, only the first occurrence of numbers separated by  dots  is  kept.
             If  the  output  is more complicated than that, the version checking will have to be
             done manually using run_command.

           version_argument str, since 1.5.0
             Specifies the argument to pass when trying to find the version of the  program.   If
             this is unspecified, `program_name --version` will be used.

   generator()
       SYNOPSIS
           generator generator(
               exe,
               arguments:,
               capture: false,
               depends:,
               depfile:,
               output:,
           )

       DESCRIPTION
           See also: custom_target

           This  function  creates  a generator object that can be used to run custom compilation
           commands. The only positional argument is the executable to use. It can  either  be  a
           self-built executable or one returned by find_program.

           The  template strings passed to all the keyword arguments accept the following special
           substitutions:

           -  `@PLAINNAME@`:  the  complete  input  file  name,  e.g:  `foo.c`  becomes   `foo.c`
           (unchanged)
           -  `@BASENAME@`:  the  base  of  the  input  filename, e.g.: `foo.c.y` becomes `foo.c`
           (extension is removed)

           Each string passed to the `output` keyword argument must be constructed using  one  or
           both of these two substitutions.

           In  addition to the above substitutions, the `arguments` keyword argument also accepts
           the following:

           - `@OUTPUT@`: the full path to the output file
           - `@INPUT@`: the full path to the input file
           - `@DEPFILE@`: the full path to the depfile
           - `@SOURCE_DIR@`: the full path to the root of the source tree
           -  `@CURRENT_SOURCE_DIR@`:  this  is  the  directory  where  the  currently  processed
           meson.build is located in
           -  `@BUILD_DIR@`:  the full path to the root of the build dir where the output will be
           placed

           NOTE: Generators should only be used for outputs that will only be used as inputs  for
           a  build_target  or a custom_target.  When you use the processed output of a generator
           in multiple targets, the generator will be run multiple times to  create  outputs  for
           each target. Each output will be created in a target-private directory `@BUILD_DIR@`.

           If  you  want to generate files for general purposes such as for generating headers to
           be used by several sources, or  data  that  will  be  installed,  and  so  on,  use  a
           custom_target instead.

       POSARGS
           exe exe | external_program, required
             Executable for the command to run

       KWARGS
           arguments list[str]
             A  list  of  template  strings that will be the command line arguments passed to the
             executable.

           capture bool, default: false, since 0.43.0
             When this argument is set to true, Meson captures `stdout` of the  `executable`  and
             writes it to the target file specified as `output`.

           depends list[build_tgt | custom_tgt | custom_idx], since 0.51.0
             An  array of build targets that must be built before this generator can be run. This
             is used if you have a generator that calls a second executable that is built in this
             project (custom_idx was not available between 0.60 and 1.4.0).

           depfile str
             A  template  string pointing to a dependency file that a generator can write listing
             all the additional files this target depends on, for example a C compiler would list
             all  the header files it included, and a change in any one of these files triggers a
             recompilation,

           output list[str]
             Template string (or list of template strings) defining how an output  file  name  is
             (or multiple output names are) generated from a single source file name.

   get_option()
       SYNOPSIS
           str | int | bool | feature | list[str | int | bool] get_option(
               option_name,
           )

       DESCRIPTION
           Obtains  the  value  of  the  project  build  option[19]  specified  in the positional
           argument.

           Note that the value returned for built-in options that end in `dir` such  as  `bindir`
           and  `libdir`  is  usually a path relative to (and inside) the `prefix` but you should
           not rely on that, as it can also be an absolute path in some cases[20].  `install_dir`
           arguments[21] handle that as expected but if you need an absolute path, e.g. to use in
           a  define  etc.,  you  should  use  the  path  concatenation   operator   like   this:
           `get_option('prefix') / get_option('localstatedir')`.  Never manually join paths as if
           they were strings.

           For options of type `feature` a feature option object is returned instead of a string.
           See `feature` options[0] documentation for more details.

       POSARGS
           option_name str, required
             Name of the option to query

   get_variable()
       SYNOPSIS
           any get_variable(variable_name, [default])

       DESCRIPTION
           This   function   can   be   used   to   dynamically   obtain   a   variable.  `res  =
           get_variable(varname, fallback)` takes the value of `varname` (which must be a string)
           and  stores  the variable of that name into `res`. If the variable does not exist, the
           variable `fallback` is stored to `res`instead. If a fallback is  not  specified,  then
           attempting to read a non-existing variable will cause a fatal error.

       POSARGS
           variable_name str, required
             Name of the variable to get

       OPTARGS
           default any
             Fallback value to return when the variable does not exist

   import()
       SYNOPSIS
           module import(module_name, disabler:, required: true)

       DESCRIPTION
           Imports  the  given  extension  module. Returns an object that can be used to call the
           methods of the module. Here's an example for a hypothetical `testmod` module.

       POSARGS
           module_name str, required
             Name of the module to import.

       KWARGS
           disabler bool, since 0.59.0
             Returns a disabler object when not found.

           required bool | feature, default: true, since 0.59.0
             When set to `false`, Meson will proceed with the build even if  the  module  is  not
             found.   When  set  to  a  `feature`[0]  option,  the  feature will control if it is
             searched and whether to fail if not found.

       EXAMPLE

               tmod = import('testmod')
               tmod.do_something()

   include_directories()
       SYNOPSIS
           inc include_directories(includes..., is_system: false)

       DESCRIPTION
           Returns an opaque object which contains  the  directories  (relative  to  the  current
           directory)  given  in  the  positional arguments. The result can then be passed to the
           `include_directories:` keyword argument when building executables  or  libraries.  You
           can  use  the  returned object in any subdirectory you want, Meson will make the paths
           work automatically.

           Note that this function call itself does not add the directories into the search path,
           since   there   is   no   global   search   path.   For   something   like  that,  see
           `add_project_arguments()`.

           See also `implicit_include_directories` parameter of executable,  which  adds  current
           source and build directories to include path.

           Each  directory  given  is converted to two include paths: one that is relative to the
           source root and one relative to the build root.

       VARARGS
           includes str, 0...N times
             Include paths to add.

       KWARGS
           is_system bool, default: false
             If set to `true`, flags the specified directories as system directories.  This means
             that  they  will  be  used with the `-isystem` compiler argument rather than `-I` on
             compilers that support this flag (in practice everything except Visual Studio).

       EXAMPLE
           For example, with the following source tree layout in `/home/user/project.git`:

           `meson.build`:
               project(...)

               subdir('include')
               subdir('src')

           `include/meson.build`:
               inc = include_directories('.')

           `src/meson.build`:
               sources = [...]

               executable('some-tool', sources,
                 include_directories : inc,
                 ...)

           If the build tree is `/tmp/build-tree`, the following include paths will be  added  to
           the `executable()` call: `-I/tmp/build-tree/include -I/home/user/project.git/include`.

   install_data()
       SYNOPSIS
           void install_data(
               file...,
               follow_symlinks: true,
               install_dir:,
               install_mode:,
               install_tag:,
               preserve_path: false,
               rename:,
               sources:,
           )

       DESCRIPTION
           Installs files from the source tree that are listed as positional arguments.

           See Installing[20] for more examples.

       VARARGS
           file file | str, 0...N times
             Files to install.

       KWARGS
           follow_symlinks bool, default: true, since 1.3.0
             If true, dereferences links and copies their target instead.  The default value will
             become false in the future.

           install_dir str
             The absolute or relative path to the installation directory.  If this is a  relative
             path, it is assumed to be relative to the prefix.

             If omitted, the directory defaults to `{datadir}/{projectname}` (since 0.45.0).

           install_mode list[str | int | bool], since 0.38.0
             specify  the file mode in symbolic format and optionally the owner/uid and group/gid
             for the installed files. For example:

             `install_mode: 'rw-r--r--'` for just the file mode

             `install_mode: ['rw-r--r--',  'nobody',  'nogroup']`  for  the  file  mode  and  the
             user/group

             `install_mode: ['rw-r-----', 0, 0]` for the file mode and uid/gid

             To leave any of these three as the default, specify `false`.

           install_tag str, since 0.60.0
             A  string used by the `meson install --tags` command to install only a subset of the
             files. By default these files have no install tag which means  they  are  not  being
             installed when `--tags` argument is specified.

           preserve_path bool, default: false, since 0.64.0
             Disable stripping child-directories from data files when installing.

             This is equivalent to GNU Automake's `nobase` option.

           rename list[str], since 0.46.0
             If  specified  renames  each source file into corresponding file from `rename` list.
             Nested paths are allowed and they are joined with `install_dir`. Length of  `rename`
             list must be equal to the number of sources.

           sources list[file | str]
             Additional files to install.

       WARNINGS
           the  `install_mode`  kwarg ignored integer values between 0.59.0 -- 1.1.0.  an omitted
           `install_dir` kwarg did not work correctly inside of a  subproject  until  1.3.0.   an
           omitted   `install_dir`   kwarg   did  not  work  correctly  when  combined  with  the
           `preserve_path` kwarg untill 1.3.0.

   install_emptydir()
       SYNOPSIS
           void install_emptydir(dirpath..., install_mode:, install_tag:)

           since 0.60.0

       DESCRIPTION
           Installs a new directory entry to the location specified by the  positional  argument.
           If the directory exists and is not empty, the contents are left in place.

       VARARGS
           dirpath str, 0...N times
             Directory to create during installation.

       KWARGS
           install_mode list[str | int | bool]
             Specify  the file mode in symbolic format and optionally the owner/uid and group/gid
             for the created directory.

             See the `install_mode` kwarg of install_data for more information.

           install_tag str
             A string used by the `meson install --tags` command to install only a subset of  the
             files.  By default this directory has no install tag which means it is not installed
             when the `--tags` argument is specified.

       WARNINGS
           the `install_mode` kwarg ignored integer values before 1.1.0.

   install_headers()
       SYNOPSIS
           void install_headers(
               file...,
               follow_symlinks: true,
               install_dir:,
               install_mode:,
               preserve_path: false,
               subdir:,
           )

       DESCRIPTION
           Installs the specified header files from  the  source  tree  into  the  system  header
           directory (usually `/{prefix}/include`) during the install step. This directory can be
           overridden by specifying it with the `install_dir` keyword argument. If you just  want
           to  install  into a subdirectory of the system header directory, then use the `subdir`
           argument. As an example if this has the value  `myproj`  then  the  headers  would  be
           installed to `/{prefix}/include/myproj`.

       VARARGS
           file file | str, 0...N times
             Header files to install.

       KWARGS
           follow_symlinks bool, default: true, since 1.3.0
             If true, dereferences links and copies their target instead.  The default value will
             become false in the future.

           install_dir str
             Where to install to.

           install_mode list[str | int | bool], since 0.47.0
             Specify the file mode in symbolic format and optionally the owner/uid and  group/gid
             for the installed files.

             See the `install_mode` kwarg of install_data for more information.

           preserve_path bool, default: false, since 0.63.0
             Disable stripping child-directories from header files when installing.

             This is equivalent to GNU Automake's `nobase` option.

           subdir str
             Install to the `subdir` subdirectory of the default includedir.

             Incompatible with the `install_dir` kwarg.

       WARNINGS
           the `install_mode` kwarg ignored integer values between 0.59.0 -- 1.1.0.
       EXAMPLE
           For example, this will install `common.h` and `kola.h` into `/{prefix}/include`:
               install_headers('common.h', 'proj/kola.h')
           This will install `common.h` and `kola.h` into `/{prefix}/include/myproj`:
               install_headers('common.h', 'proj/kola.h', subdir : 'myproj')
           This will install `common.h` and `kola.h` into `/{prefix}/cust/myproj`:
               install_headers('common.h',   'proj/kola.h',   install_dir   :  'cust',  subdir  :
               'myproj')
           This  will   install   `common.h`   into   `/{prefix}/include`   and   `kola.h`   into
           `/{prefix}/include/proj/`:
               install_headers('common.h, 'proj/kola.h', preserve_path : true)

   install_man()
       SYNOPSIS
           void install_man(file..., install_dir:, install_mode:, locale:)

       DESCRIPTION
           Installs  the  specified  man  files  from the source tree into system's man directory
           during the install step. This directory can be overridden by specifying  it  with  the
           `install_dir` keyword argument.

           (since 0.49.0) [manpages are no longer compressed implicitly][install_man_49].

           [install_man_49]:   https://mesonbuild.com/Release-notes-for-0-49-0.html#manpages-are-
           no-longer-compressed-implicitly

       VARARGS
           file file | str, 0...N times
             Man pages to install.

       KWARGS
           install_dir str
             Where to install to.

           install_mode list[str | int | bool], since 0.47.0
             Specify the file mode in symbolic format and optionally the owner/uid and  group/gid
             for the installed files.

             See the `install_mode` kwarg of install_data for more information.

           locale str, since 0.58.0
             Can  be  used to specify the locale into which the man page will be installed within
             the manual page directory tree.  An example manual might be `foo.fr.1` with a locale
             of `fr`, such that `{mandir}/{locale}/man{num}/foo.1` becomes the installed file.

       WARNINGS
           the `install_mode` kwarg ignored integer values between 0.59.0 -- 1.1.0.

   install_subdir()
       SYNOPSIS
           void install_subdir(
               subdir_name,
               exclude_directories:,
               exclude_files:,
               follow_symlinks: true,
               install_dir:,
               install_mode:,
               install_tag:,
               strip_directory: false,
           )

       DESCRIPTION
           Installs  the  entire  given subdirectory and its contents from the source tree to the
           location specified by the keyword argument `install_dir`.

           (since 0.45.0, deprecated since 0.60.0) If the subdirectory  does  not  exist  in  the
           source tree, an empty directory is created in the specified location.  A newly created
           subdirectory may only be created in the keyword argument `install_dir`.  There  are  a
           number of flaws with this method, and it was never intentionally designed to work this
           way, please use install_emptydir instead.

       POSARGS
           subdir_name str, required
             The sub-directory to install

       KWARGS
           exclude_directories list[str], since 0.47.0
             A list of directory names that should not be installed.  Names  are  interpreted  as
             paths relative to the `subdir_name` location.

           exclude_files list[str]
             A  list  of file names that should not be installed.  Names are interpreted as paths
             relative to the `subdir_name` location.

           follow_symlinks bool, default: true, since 1.3.0
             If true, dereferences links and copies their target instead.  The default value will
             become false in the future.

           install_dir str
             Where to install to.

           install_mode list[str | int | bool], since 0.47.0
             Specify  the file mode in symbolic format and optionally the owner/uid and group/gid
             for the installed files.

             See the `install_mode` kwarg of install_data for more information.

           install_tag str, since 0.60.0
             A string used by the `meson install --tags` command to install only a subset of  the
             files.  By  default  these  files have no install tag which means they are not being
             installed when `--tags` argument is specified.

           strip_directory bool, default: false, since 0.45.0
             Install directory contents.  If `strip_directory=true` only the  last  component  of
             the source path is used.

       WARNINGS
           the `install_mode` kwarg ignored integer values between 0.59.0 -- 1.1.0.
       EXAMPLE
           For a given directory `foo`:
               text
               foo/
                 bar/
                   file1
                 file2
           `install_subdir('foo', install_dir : 'share', strip_directory : false)` creates
               text
               share/
                 foo/
                   bar/
                     file1
                   file2
           `install_subdir('foo', install_dir : 'share', strip_directory : true)` creates
               text
               share/
                 bar/
                   file1
                 file2
           `install_subdir('foo/bar', install_dir : 'share', strip_directory : false)` creates
               text
               share/
                 bar/
                   file1
           `install_subdir('foo/bar', install_dir : 'share', strip_directory : true)` creates
               text
               share/
                 file1
           `install_subdir('new_directory', install_dir : 'share')` creates
               text
               share/
                 new_directory/

   install_symlink()
       SYNOPSIS
           void install_symlink(
               link_name,
               install_dir:,
               install_tag:,
               pointing_to:,
           )

           since 0.61.0

       DESCRIPTION
           Installs a symbolic link to `pointing_to` target under install_dir.

       POSARGS
           link_name str, required
             Name  of  the  created link under `install_dir`.  It cannot contain path separators.
             Those should go in `install_dir`.

       KWARGS
           install_dir str, required
             The absolute or relative path to the installation directory for the links.  If  this
             is a relative path, it is assumed to be relative to the prefix.

           install_tag str
             A  string used by the `meson install --tags` command to install only a subset of the
             files. By default these files have no install tag which means  they  are  not  being
             installed when `--tags` argument is specified.

           pointing_to str, required
             Target to point the link to.  Can be absolute or relative and that will be respected
             when creating the link.

   is_disabler()
       SYNOPSIS
           bool is_disabler(var)

           since 0.52.0

       DESCRIPTION
           Returns true if a variable is a disabler and false otherwise.

       POSARGS
           var any, required
             The variable to test

   is_variable()
       SYNOPSIS
           bool is_variable(var)

           since 0.52.0

       DESCRIPTION
           Returns true if a variable of the given name exists and false otherwise.

       POSARGS
           var str, required
             The variable to test

   jar()
       SYNOPSIS
           jar jar(
               target_name,
               source...,
               <lang>_args:,
               <lang>_pch:,
               build_by_default: true,
               build_rpath:,
               d_debug:,
               d_import_dirs:,
               d_module_versions:,
               d_unittest: false,
               dependencies:,
               extra_files:,
               gnu_symbol_visibility:,
               gui_app: false,
               implicit_include_directories: true,
               include_directories:,
               install: false,
               install_dir:,
               install_mode:,
               install_rpath:,
               install_tag:,
               java_resources:,
               link_args:,
               link_depends:,
               link_language:,
               link_whole:,
               link_with:,
               main_class:,
               name_prefix:,
               name_suffix:,
               native: false,
               objects:,
               override_options:,
               rust_crate_type:,
               rust_dependency_map:,
               sources:,
               vala_args:,
               win_subsystem: 'console',
           )

       DESCRIPTION
           Build a jar from the specified Java source files. Keyword arguments are  the  same  as
           executable's,  with  the  addition  of  `main_class` which specifies the main class to
           execute when running the jar with `java -jar file.jar`.

       POSARGS
           target_name str, required
             The unique name of the build target

       VARARGS
           source str | file | custom_tgt | custom_idx | generated_list, 0...N times
             Input source to compile. The following types are supported:

             - Strings relative to the current source directory
             - file objects defined in any preceding build file
             - The return value of configure-time generators such as configure_file
             -  The  return  value  of   build-time   generators   such   as   custom_target   or
             generator.process

             These  input files can be sources, objects, libraries, or any other file. Meson will
             automatically categorize them based on the extension and use them  accordingly.  For
             instance,  sources  (`.c`, `.cpp`, `.vala`, `.rs`, etc) will be compiled and objects
             (`.o`, `.obj`) and libraries (`.so`, `.dll`, etc) will be linked.

             With the Ninja backend, Meson will create a build-time order-only  dependency[3]  on
             all  generated input files, including unknown files. This is needed to bootstrap the
             generation of the real dependencies in the depfile[4] generated by your compiler  to
             determine  when  to  rebuild  sources.  Ninja relies on this dependency file for all
             input files, generated  and  non-generated.   The  behavior  is  similar  for  other
             backends.

       KWARGS
           <lang>_args list[str]
             compiler flags to use for the given language; eg: `cpp_args` for C++

           <lang>_pch str
             precompiled header file to use for the given language

           build_by_default bool, default: true, since 0.38.0
             Causes,  when set to `true`, to have this target be built by default.  This means it
             will be built when `meson compile` is called  without  any  arguments.  The  default
             value is `true` for all built target types.

           build_rpath str, since 0.42.0
             A  string  to  add  to target's rpath definition in the build dir, but which will be
             removed on install

           d_debug list[str]
             The D version identifiers[5] to add during the compilation of D source files.

           d_import_dirs list[str]
             List of directories to look  in  for  string  imports  used  in  the  D  programming
             language.

           d_module_versions list[str | int]
             List of module version identifiers set when compiling D sources.

           d_unittest bool, default: false
             When set to true, the D modules are compiled in debug mode.

           dependencies list[dep]
             one or more dependency objects created with dependency or compiler.find_library (for
             external deps) or declare_dependency (for deps built by the project)

           extra_files str | file | custom_tgt | custom_idx
             Not used for the build itself but are shown as source files in IDEs that group files
             by targets (such as Visual Studio)

           gnu_symbol_visibility str, since 0.48.0
             Specifies  how  symbols  should  be  exported,  see  e.g  the  GCC  Wiki[6] for more
             information. This value  can  either  be  an  empty  string  or  one  of  `default`,
             `internal`,  `hidden`, `protected` or `inlineshidden`, which is the same as `hidden`
             but also includes things like C++ implicit constructors  as  specified  in  the  GCC
             manual. Ignored on compilers that do not support GNU visibility arguments.

           gui_app bool, default: false, deprecated since 0.56.0
             When  set  to  true  flags  this target as a GUI application on platforms where this
             makes a difference, deprecated since 0.56.0, use `win_subsystem` instead.

           implicit_include_directories bool, default: true, since 0.42.0
             Controls whether Meson adds the current source and build directories to the  include
             path

           include_directories list[inc | str]
             one or more objects created with the include_directories function, or (since 0.50.0)
             strings, which will be transparently expanded to include directory objects

           install bool, default: false
             When set to true, this executable should be installed.

           install_dir str
             override install directory for this file. If the value is a relative path,  it  will
             be  considered  relative  the  `prefix` option.  For example, if you want to install
             plugins  into  a  subdir,  you'd   use   something   like   this:   `install_dir   :
             get_option('libdir') / 'projectname-1.0'`.

           install_mode list[str | int], since 0.47.0
             Specify  the file mode in symbolic format and optionally the owner/uid and group/gid
             for the installed files.

             See the `install_mode` kwarg of install_data for more information.

           install_rpath str
             A string to set the target's rpath to  after  install  (but  not  before  that).  On
             Windows, this argument has no effect.

           install_tag str, since 0.60.0
             A  string used by the `meson install --tags` command to install only a subset of the
             files. By default all build  targets  have  the  tag  `runtime`  except  for  static
             libraries that have the `devel` tag.

           java_resources structured_src, since 0.62.0
             Resources to be added to the jar

           link_args list[str]
             Flags to use during linking. You can use UNIX-style flags here for all platforms.

           link_depends str | file | custom_tgt | custom_idx
             Strings,  files,  or  custom  targets  the  link  step  depends  on such as a symbol
             visibility map. The purpose is to automatically trigger a re-link  (but  not  a  re-
             compile) of the target when this file changes.

           link_language str, since 0.51.0
             Makes  the  linker  for  this target be for the specified language.  It is generally
             unnecessary to set this, as Meson will detect the right linker to use in most cases.
             There  are  only  two  cases  where  this  is  needed. One, your main function in an
             executable is not in the language Meson picked,  or  second  you  want  to  force  a
             library to use only one ABI.

             (broken until 0.55.0)

           link_whole list[lib | custom_tgt | custom_idx], since 0.40.0
             Links  all  contents  of  the  given  static libraries whether they are used or not,
             equivalent to the `-Wl,--whole-archive` argument flag of GCC, or the ´/WHOLEARCHIVE'
             MSVC  linker  option.  This  allows  the linked target to re-export symbols from all
             objects in the static libraries.

             (since 0.41.0) If passed a list that list will be flattened.

             (since 0.51.0) This argument also accepts outputs produced by  custom  targets.  The
             user must ensure that the output is a library in the correct format.

           link_with list[lib | custom_tgt | custom_idx]
             One  or  more  shared  or  static libraries (built by this project) that this target
             should be linked with. (since 0.41.0) If passed a list this list will be  flattened.
             (since  0.51.0)  The  arguments can also be custom targets.  In this case Meson will
             assume that merely adding the output file in the linker command line  is  sufficient
             to  make  linking work. If this is not sufficient, then the build system writer must
             write all other steps manually.

           main_class str
             Main class for running the built jar

           name_prefix str | list[void]
             The string that will be used as  the  prefix  for  the  target  output  filename  by
             overriding  the  default  (only used for libraries). By default this is `lib` on all
             platforms and compilers, except for MSVC shared libraries where  it  is  omitted  to
             follow convention, and Cygwin shared libraries where it is `cyg`.

             Set this to `[]`, or omit the keyword argument for the default behaviour.

           name_suffix str | list[void]
             The  string  that  will  be  used  as the extension for the target by overriding the
             default. By default on Windows this is `exe` for executables and on other  platforms
             it is omitted.

             For  shared  libraries, the default value is `dylib` on macOS, `dll` on Windows, and
             `so` everywhere else.  For static libraries, it is  `a`  everywhere.  By  convention
             MSVC static libraries use the `lib` suffix, but we use `a` to avoid a potential name
             clash with shared libraries which  also  generate  import  libraries  with  a  `lib`
             suffix.

             Set this to `[]`, or omit the keyword argument for the default behaviour.

           native bool, default: false
             Controls whether the target is compiled for the build or host machines.

           objects list[extracted_obj | file | str]
             List of object files that should be linked in this target.

             Since  1.1.0  this  can include generated files in addition to object files that you
             don't have source to or that object files  produced  by  other  build  targets.   In
             earlier release, generated object files had to be placed in `sources`.

           override_options list[str] | dict[str | bool | int | list[str]], since 0.40.0
             takes  an  array  of  strings  in  the  same format as `project`'s `default_options`
             overriding the values of these options for  this  target  only.   (since  1.2.0):  A
             dictionary may now be passed.

           rust_crate_type str, deprecated since 1.3.0, since 0.42.0
             Set the specific type of rust crate to compile (when compiling rust).

             If the target is an executable this defaults to "bin", the only allowed value.

             If  it  is  a static_library it defaults to "lib", and may be "lib", "staticlib", or
             "rlib". If "lib" then Rustc will pick a default, "staticlib" means a C ABI  library,
             "rlib" means a Rust ABI.

             If it is a shared_library it defaults to "lib", and may be "lib", "dylib", "cdylib",
             or "proc-macro". If "lib" then Rustc will pick a default, "cdylib"  means  a  C  ABI
             library,  "dylib"  means  a  Rust ABI, and "proc-macro" is a special rust procedural
             macro crate.

             "proc-macro" is new in 0.62.0.

             Since 1.3.0  this  is  deprecated  and  replaced  by  "rust_abi"  keyword  argument.
             `proc_macro` crates are now handled by the `rust.proc_macro()`[7] method.

           rust_dependency_map dict[str], since 1.2.0
             On rust targets this provides a map of library names to the crate name with which it
             would be available inside the rust code.

             This allows renaming similar to the dependency renaming feature of cargo or  `extern
             crate foo as bar` inside rust code.

           sources str | file | custom_tgt | custom_idx | generated_list | structured_src
             Additional source files. Same as the source varargs.

           vala_args list[str | file]
             Compiler flags for Vala. Unlike other languages this may contain Files

           win_subsystem str, default: 'console', since 0.56.0
             Specifies  the subsystem type to use on the Windows platform. Typical values include
             `console` for text mode programs and `windows` for gui  apps.  The  value  can  also
             contain  version  specification such as `windows,6.0`. See MSDN documentation[8] for
             the full list.

   join_paths()
       SYNOPSIS
           str join_paths(part...)

           since 0.36.0

       DESCRIPTION
           Joins  the  given  strings  into   a   file   system   path   segment.   For   example
           `join_paths('foo', 'bar')` results in `foo/bar`. If any one of the individual segments
           is  an  absolute  path,  all  segments  before  it  are  dropped.  That   means   that
           `join_paths('foo', '/bar')` returns `/bar`.

           (since 0.49.0) Using the `/` operator on strings is equivalent to calling join_paths.
               # res1 and res2 will have identical values
               res1 = join_paths(foo, bar)
               res2 = foo / bar

       VARARGS
           part str, 1...N times
             The path parts to join.

       WARNINGS
           Don't  use  join_paths  for  sources  in  library and executable. You should use files
           instead.

   library()
       SYNOPSIS
           lib library(
               target_name,
               source...,
               <lang>_args:,
               <lang>_pch:,
               <lang>_shared_args:,
               <lang>_static_args:,
               build_by_default: true,
               build_rpath:,
               d_debug:,
               d_import_dirs:,
               d_module_versions:,
               d_unittest: false,
               darwin_versions:,
               dependencies:,
               extra_files:,
               gnu_symbol_visibility:,
               gui_app: false,
               implicit_include_directories: true,
               include_directories:,
               install: false,
               install_dir:,
               install_mode:,
               install_rpath:,
               install_tag:,
               link_args:,
               link_depends:,
               link_language:,
               link_whole:,
               link_with:,
               name_prefix:,
               name_suffix:,
               native: false,
               objects:,
               override_options:,
               pic:,
               prelink:,
               rust_abi:,
               rust_crate_type:,
               rust_dependency_map:,
               sources:,
               soversion:,
               vala_args:,
               vala_shared_args:,
               vala_static_args:,
               version:,
               vs_module_defs:,
               win_subsystem: 'console',
           )

       DESCRIPTION
           Builds a library that is either static, shared or  both  depending  on  the  value  of
           `default_library`  user  option[22].   You  should use this instead of shared_library,
           static_library or both_libraries most of the time. This  allows  you  to  toggle  your
           entire  project  (including  subprojects)  from shared to static with only one option.
           This option applies to libraries being built  internal  to  the  entire  project.  For
           external  dependencies,  the  default  library  type  preferred is shared. This can be
           adapted on a per library basis using the dependency `static` keyword.

           The keyword arguments for this are the same as for build_target

       POSARGS
           target_name str, required
             The unique name of the build target

       VARARGS
           source str | file | custom_tgt | custom_idx | generated_list, 0...N times
             Input source to compile. The following types are supported:

             - Strings relative to the current source directory
             - file objects defined in any preceding build file
             - The return value of configure-time generators such as configure_file
             -  The  return  value  of   build-time   generators   such   as   custom_target   or
             generator.process

             These  input files can be sources, objects, libraries, or any other file. Meson will
             automatically categorize them based on the extension and use them  accordingly.  For
             instance,  sources  (`.c`, `.cpp`, `.vala`, `.rs`, etc) will be compiled and objects
             (`.o`, `.obj`) and libraries (`.so`, `.dll`, etc) will be linked.

             With the Ninja backend, Meson will create a build-time order-only  dependency[3]  on
             all  generated input files, including unknown files. This is needed to bootstrap the
             generation of the real dependencies in the depfile[4] generated by your compiler  to
             determine  when  to  rebuild  sources.  Ninja relies on this dependency file for all
             input files, generated  and  non-generated.   The  behavior  is  similar  for  other
             backends.

       KWARGS
           <lang>_args list[str]
             compiler flags to use for the given language; eg: `cpp_args` for C++

           <lang>_pch str
             precompiled header file to use for the given language

           <lang>_shared_args list[str], since 1.3.0
             Arguments that are only passed to a shared library

           <lang>_static_args list[str], since 1.3.0
             Arguments that are only passed to a static library

           build_by_default bool, default: true, since 0.38.0
             Causes,  when set to `true`, to have this target be built by default.  This means it
             will be built when `meson compile` is called  without  any  arguments.  The  default
             value is `true` for all built target types.

           build_rpath str, since 0.42.0
             A  string  to  add  to target's rpath definition in the build dir, but which will be
             removed on install

           d_debug list[str]
             The D version identifiers[5] to add during the compilation of D source files.

           d_import_dirs list[str]
             List of directories to look  in  for  string  imports  used  in  the  D  programming
             language.

           d_module_versions list[str | int]
             List of module version identifiers set when compiling D sources.

           d_unittest bool, default: false
             When set to true, the D modules are compiled in debug mode.

           darwin_versions str | int | list[str], since 0.48.0
             Defines  the  `compatibility  version` and `current version` for the dylib on macOS.
             If a list is specified, it must be either zero, one, or two elements.  If  only  one
             element  is  specified  or  if it's not a list, the specified value will be used for
             setting  both  compatibility  version  and  current  version.  If  unspecified,  the
             `soversion` will be used as per the aforementioned rules.

           dependencies list[dep]
             one or more dependency objects created with dependency or compiler.find_library (for
             external deps) or declare_dependency (for deps built by the project)

           extra_files str | file | custom_tgt | custom_idx
             Not used for the build itself but are shown as source files in IDEs that group files
             by targets (such as Visual Studio)

           gnu_symbol_visibility str, since 0.48.0
             Specifies  how  symbols  should  be  exported,  see  e.g  the  GCC  Wiki[6] for more
             information. This value  can  either  be  an  empty  string  or  one  of  `default`,
             `internal`,  `hidden`, `protected` or `inlineshidden`, which is the same as `hidden`
             but also includes things like C++ implicit constructors  as  specified  in  the  GCC
             manual. Ignored on compilers that do not support GNU visibility arguments.

           gui_app bool, default: false, deprecated since 0.56.0
             When  set  to  true  flags  this target as a GUI application on platforms where this
             makes a difference, deprecated since 0.56.0, use `win_subsystem` instead.

           implicit_include_directories bool, default: true, since 0.42.0
             Controls whether Meson adds the current source and build directories to the  include
             path

           include_directories list[inc | str]
             one or more objects created with the include_directories function, or (since 0.50.0)
             strings, which will be transparently expanded to include directory objects

           install bool, default: false
             When set to true, this executable should be installed.

           install_dir str
             override install directory for this file. If the value is a relative path,  it  will
             be  considered  relative  the  `prefix` option.  For example, if you want to install
             plugins  into  a  subdir,  you'd   use   something   like   this:   `install_dir   :
             get_option('libdir') / 'projectname-1.0'`.

           install_mode list[str | int], since 0.47.0
             Specify  the file mode in symbolic format and optionally the owner/uid and group/gid
             for the installed files.

             See the `install_mode` kwarg of install_data for more information.

           install_rpath str
             A string to set the target's rpath to  after  install  (but  not  before  that).  On
             Windows, this argument has no effect.

           install_tag str, since 0.60.0
             A  string used by the `meson install --tags` command to install only a subset of the
             files. By default all build  targets  have  the  tag  `runtime`  except  for  static
             libraries that have the `devel` tag.

           link_args list[str]
             Flags to use during linking. You can use UNIX-style flags here for all platforms.

           link_depends str | file | custom_tgt | custom_idx
             Strings,  files,  or  custom  targets  the  link  step  depends  on such as a symbol
             visibility map. The purpose is to automatically trigger a re-link  (but  not  a  re-
             compile) of the target when this file changes.

           link_language str, since 0.51.0
             Makes  the  linker  for  this target be for the specified language.  It is generally
             unnecessary to set this, as Meson will detect the right linker to use in most cases.
             There  are  only  two  cases  where  this  is  needed. One, your main function in an
             executable is not in the language Meson picked,  or  second  you  want  to  force  a
             library to use only one ABI.

             (broken until 0.55.0)

           link_whole list[lib | custom_tgt | custom_idx], since 0.40.0
             Links  all  contents  of  the  given  static libraries whether they are used or not,
             equivalent to the `-Wl,--whole-archive` argument flag of GCC, or the ´/WHOLEARCHIVE'
             MSVC  linker  option.  This  allows  the linked target to re-export symbols from all
             objects in the static libraries.

             (since 0.41.0) If passed a list that list will be flattened.

             (since 0.51.0) This argument also accepts outputs produced by  custom  targets.  The
             user must ensure that the output is a library in the correct format.

           link_with list[lib | custom_tgt | custom_idx]
             One  or  more  shared  or  static libraries (built by this project) that this target
             should be linked with. (since 0.41.0) If passed a list this list will be  flattened.
             (since  0.51.0)  The  arguments can also be custom targets.  In this case Meson will
             assume that merely adding the output file in the linker command line  is  sufficient
             to  make  linking work. If this is not sufficient, then the build system writer must
             write all other steps manually.

           name_prefix str | list[void]
             The string that will be used as  the  prefix  for  the  target  output  filename  by
             overriding  the  default  (only used for libraries). By default this is `lib` on all
             platforms and compilers, except for MSVC shared libraries where  it  is  omitted  to
             follow convention, and Cygwin shared libraries where it is `cyg`.

             Set this to `[]`, or omit the keyword argument for the default behaviour.

           name_suffix str | list[void]
             The  string  that  will  be  used  as the extension for the target by overriding the
             default. By default on Windows this is `exe` for executables and on other  platforms
             it is omitted.

             For  shared  libraries, the default value is `dylib` on macOS, `dll` on Windows, and
             `so` everywhere else.  For static libraries, it is  `a`  everywhere.  By  convention
             MSVC static libraries use the `lib` suffix, but we use `a` to avoid a potential name
             clash with shared libraries which  also  generate  import  libraries  with  a  `lib`
             suffix.

             Set this to `[]`, or omit the keyword argument for the default behaviour.

           native bool, default: false
             Controls whether the target is compiled for the build or host machines.

           objects list[extracted_obj | file | str]
             List of object files that should be linked in this target.

             Since  1.1.0  this  can include generated files in addition to object files that you
             don't have source to or that object files  produced  by  other  build  targets.   In
             earlier release, generated object files had to be placed in `sources`.

           override_options list[str] | dict[str | bool | int | list[str]], since 0.40.0
             takes  an  array  of  strings  in  the  same format as `project`'s `default_options`
             overriding the values of these options for  this  target  only.   (since  1.2.0):  A
             dictionary may now be passed.

           pic bool, since 0.36.0
             Builds the library as positional independent code (so it can be linked into a shared
             library). This option has no effect on Windows and OS X since it doesn't make  sense
             on Windows and PIC cannot be disabled on OS X.

           prelink bool, since 0.57.0
             If  `true`  the  object  files in the target will be prelinked, meaning that it will
             contain only one prelinked object file rather than the individual object files.

           rust_abi str, since 1.3.0
             Set the specific ABI to compile (when compiling rust).  - 'rust' (default): Create a
             "rlib" or "dylib" crate depending on the library type being build.
             -  'c':  Create  a "cdylib" or "staticlib" crate depending on the library type being
             build.

           rust_crate_type str, deprecated since 1.3.0, since 0.42.0
             Set the specific type of rust crate to compile (when compiling rust).

             If the target is an executable this defaults to "bin", the only allowed value.

             If it is a static_library it defaults to "lib", and may be  "lib",  "staticlib",  or
             "rlib".  If "lib" then Rustc will pick a default, "staticlib" means a C ABI library,
             "rlib" means a Rust ABI.

             If it is a shared_library it defaults to "lib", and may be "lib", "dylib", "cdylib",
             or  "proc-macro".  If  "lib"  then Rustc will pick a default, "cdylib" means a C ABI
             library, "dylib" means a Rust ABI, and "proc-macro" is  a  special  rust  procedural
             macro crate.

             "proc-macro" is new in 0.62.0.

             Since  1.3.0  this  is  deprecated  and  replaced  by  "rust_abi"  keyword argument.
             `proc_macro` crates are now handled by the `rust.proc_macro()`[7] method.

           rust_dependency_map dict[str], since 1.2.0
             On rust targets this provides a map of library names to the crate name with which it
             would be available inside the rust code.

             This  allows renaming similar to the dependency renaming feature of cargo or `extern
             crate foo as bar` inside rust code.

           sources str | file | custom_tgt | custom_idx | generated_list | structured_src
             Additional source files. Same as the source varargs.

           soversion str | int
             A string or integer specifying the soversion of this shared library, such as `0`. On
             Linux and Windows this is used to set the soversion (or equivalent) in the filename.
             For example, if `soversion` is `4`, a Windows DLL will be called `foo-4.dll` and one
             of  the  aliases  of the Linux shared library would be `libfoo.so.4`. If this is not
             specified, the first part of `version` is used instead (see below). For example,  if
             `version` is `3.6.0` and `soversion` is not defined, it is set to `3`.

           vala_args list[str | file]
             Compiler flags for Vala. Unlike other languages this may contain Files

           vala_shared_args list[str | file], since 1.3.0
             Arguments  that  are  only  passed  to  a  shared library Like `vala_args`, files is
             allowed in addition to string

           vala_static_args list[str | file], since 1.3.0
             Arguments that are only passed to  a  static  library  Like  `vala_args`,  files  is
             allowed in addition to string

           version str
             A  string  specifying  the version of this shared library, such as `1.1.0`. On Linux
             and OS X, this is used to set the shared library version in the  filename,  such  as
             `libfoo.so.1.1.0` and `libfoo.1.1.0.dylib`. If this is not specified, `soversion` is
             used instead (see above).

           vs_module_defs str | file | custom_tgt | custom_idx
             Specify a Microsoft module definition file for controlling symbol exports, etc.,  on
             platforms where that is possible (e.g. Windows).

             (Since 1.3.0) custom_idx are supported

           win_subsystem str, default: 'console', since 0.56.0
             Specifies  the subsystem type to use on the Windows platform. Typical values include
             `console` for text mode programs and `windows` for gui  apps.  The  value  can  also
             contain  version  specification such as `windows,6.0`. See MSDN documentation[8] for
             the full list.

       WARNINGS
           using <lang>_shared_args and/or <lang>_static_args may lead to much higher compilation
           times  with  both_library,  as  object  files  cannot be shared between the static and
           shared targets. It is guaranteed to not duplicate the build  if  these  arguments  are
           empty arrays

   message()
       SYNOPSIS
           void message(text, more_text...)

       DESCRIPTION
           This function prints its argument to stdout.

       POSARGS
           text str | int | bool | list[str | int | bool] | dict[str | int | bool], required
             The message to print.

       VARARGS
           more_text  str  |  int | bool | list[str | int | bool] | dict[str | int | bool], 0...N
           times, since 0.54.0
             Additional text that will be printed separated by spaces.

   project()
       SYNOPSIS
           void project(
               project_name,
               language...,
               default_options:,
               license:,
               license_files:,
               meson_version:,
               subproject_dir: 'subprojects',
               version:,
           )

       DESCRIPTION
           The first function called in each project, to initialize Meson.

           The first argument to this function must  be  a  string  defining  the  name  of  this
           project.

           The  project  name  can  be  any  string  you  want, it's not used for anything except
           descriptive purposes. However since it is written to e.g. the dependency  manifest  is
           usually  makes sense to have it be the same as the project tarball or pkg-config name.
           So for example you would probably want to use the name  _libfoobar_  instead  of  _The
           Foobar Library_.

           It may be followed by the list of programming languages that the project uses.

           (since 0.40.0) The list of languages is optional.

           These  languages  may  be  used  both for `native: false` (the default) (host machine)
           targets and for `native: true` (build machine)  targets.   (since  0.56.0)  The  build
           machine compilers for the specified languages are not required.

           Supported  values  for  languages  are  `c`, `cpp` (for `C++`), `cuda`, `cython`, `d`,
           `objc`, `objcpp`, `fortran`, `java`, `cs` (for `C#`), `vala` and `rust`.

       POSARGS
           project_name str, required
             The name of the project.

       VARARGS
           language str, 0...N times
             The languages that Meson should initialize.

       KWARGS
           default_options list[str] | dict[str | bool | int | list[str]]
             Accepts strings in the form `key=value` which have the same  format  as  options  to
             `meson  configure`.  For example to set the default project type you would set this:
             `default_options : ['buildtype=debugoptimized']`. Note that these settings are  only
             used  when  running Meson for the first time. Global options such as `buildtype` can
             only be specified in the  master  project,  settings  in  subprojects  are  ignored.
             Project specific options are used normally even in subprojects.

             Note  that  some  options  can  override  the  default  behavior; for example, using
             `c_args` here means that the `CFLAGS` environment variable  is  not  used.  Consider
             using add_project_arguments() instead.

             (since 1.2.0): A dictionary may now be passed.

           license str | list[str]
             Takes a string or array of strings describing the license(s) the code is under.

             This  should  be  an  SPDX  license  expression[23],  using the standardized license
             identifier from the SPDX license list[24].  Usually this  would  be  something  like
             `license : 'GPL-2.0-or-later'`. If there are multiple licenses you can use the `AND`
             and `OR` operators to join them: `license : 'Apache-2.0 OR GPL-2.0'`.

             For backwards compatibility reasons you can also pass an  array  of  licenses  here.
             This   is   not   recommended,   as  it  is  ambiguous:  `license  :  ['Apache-2.0',
             'GPL-2.0-only']`  instead  use  an  SPDX  expression:  `license  :  'Apache-2.0   OR
             GPL-2.0-only'`, which makes it clear that the license mean OR, not AND.

             Note that the text is informal and is only written to the dependency manifest. Meson
             does not do any license validation, you are responsible for verifying that you abide
             by  all  licensing  terms.  You  can access the value in your Meson build files with
             `meson.project_license()`.

           license_files str | list[str], since 1.1.0
             Takes a string or array of strings with the paths to the license file(s) the code is
             under.

             This enhances the value of the `license` kwarg by allowing to specify both the short
             license name and the full  license  text.  Usually  this  would  be  something  like
             `license_files: ['COPYING']`.

             Note  that  the  files  are  informal  and  are  only  installed with the dependency
             manifest. Meson does  not  do  any  license  validation,  you  are  responsible  for
             verifying  that  you  abide by all licensing terms. You can access the value in your
             Meson build files with meson.project_license_files.

           meson_version str
             Takes a string  describing  which  Meson  version  the  project  requires.   Usually
             something like `>=0.28.0`.

           subproject_dir str, default: 'subprojects'
             Specifies  the  top level directory name that holds Meson subprojects.  This is only
             meant as a compatibility option for existing code bases that  house  their  embedded
             source  code in a custom directory. All new projects should not set this but instead
             use the default value. It should be noted that  this  keyword  argument  is  ignored
             inside  subprojects.  There  can be only one subproject dir and it is set in the top
             level Meson file.

           version str | file
             A free form string describing the version of this project.  You can access the value
             in  your  Meson build files with meson.project_version. (Since 0.57.0) this can also
             be a file object pointing to a file that contains exactly one line of text.

   range()
       SYNOPSIS
           range range([start], [stop], [step])

           since 0.58.0

       DESCRIPTION
           Return an opaque object that can be only be used in `foreach` statements.

           <pre><code  class="language-meson">range  range(int   <b>stop</b>)   range   range(int
           <b>start</b>, int <b>stop</b>[, int <b>step</b>])</code></pre>

           - `start` must be integer greater or equal to 0. Defaults to 0.
           - `stop` must be integer greater or equal to `start`.
           - `step` must be integer greater or equal to 1. Defaults to 1.

           It  cause  the  `foreach`  loop  to  be called with the value from `start` included to
           `stop` excluded with an increment of `step` after each loop.

       OPTARGS
           start int, default: 0
             The start of the range

           stop int
             The end of the range

           step int, default: 1
             The loop increment

       EXAMPLE

               # Loop 15 times with i from 0 to 14 included.
               foreach i : range(15)
                 ...
               endforeach
           The range object can also be assigned to a variable and indexed.
               r = range(5, 10, 2)
               assert(r[2] == 9)

   run_command()
       SYNOPSIS
           runresult run_command(
               command...,
               capture: true,
               check: false,
               env:,
           )

       DESCRIPTION
           Runs the command specified in positional arguments. `command` can be a string, or  the
           output of find_program, files or configure_file, or a compiler object.

           Returns a runresult object containing the result of the invocation. The command is run
           from an  unspecified  directory,  and  Meson  will  set  three  environment  variables
           `MESON_SOURCE_ROOT`,  `MESON_BUILD_ROOT`  and  `MESON_SUBDIR`  that specify the source
           directory, build directory and subdirectory the target was defined in, respectively.

           See also External commands[25].

       VARARGS
           command str | file | external_program | compiler, 0...N times
             The command to execute during the setup process.

       KWARGS
           capture bool, default: true, since 0.47.0
             If `true`, any output generated on stdout will  be  captured  and  returned  by  the
             `.stdout()` method. If it is false, then `.stdout()` will return an empty string.

           check bool, default: false, since 0.47.0
             If  `true`,  the  exit  status  code  of  the  command  will  be  checked,  and  the
             configuration will fail if it is non-zero. Note  that  the  default  value  will  be
             `true` in future releases.

           env env | list[str] | dict[str], since 0.50.0
             environment  variables to set, such as `['NAME1=value1', 'NAME2=value2']`, or an env
             object which allows  more  sophisticated  environment  juggling.  (Since  0.52.0)  A
             dictionary is also accepted.

   run_target()
       SYNOPSIS
           run_tgt run_target(target_name, command:, depends:, env:)

       DESCRIPTION
           This  function  creates  a new top-level target that runs a specified command with the
           specified arguments. Like all top-level targets, this  integrates  with  the  selected
           backend.  For instance, you can run it as `meson compile target_name`. Note that a run
           target produces no output as far as Meson is concerned. It is  only  meant  for  tasks
           such  as  running  a  code  formatter or flashing an external device's firmware with a
           built file.

           The command is run from an unspecified directory, and Meson will set three environment
           variables  `MESON_SOURCE_ROOT`, `MESON_BUILD_ROOT` and `MESON_SUBDIR` that specify the
           source directory,  build  directory  and  subdirectory  the  target  was  defined  in,
           respectively.

           Since  0.57.0  The  template  strings passed to `command` keyword arguments accept the
           following special substitutions: - `@SOURCE_ROOT@`: the path to the root of the source
           tree.  Depending  on  the  backend,  this  may be an absolute or a relative to current
           workdir path.
           - `@BUILD_ROOT@`: the path to the root of the build tree. Depending  on  the  backend,
           this may be an absolute or a relative to current workdir path.
           -  `@CURRENT_SOURCE_DIR@`  Since  0.57.1:  this  is  the directory where the currently
           processed meson.build is located in. Depending on the backend, this may be an absolute
           or a relative to current workdir path.

       POSARGS
           target_name str, required
             The name of the run target

       KWARGS
           command list[exe| external_program | custom_tgt | file | str]
             A list containing the command to run and the arguments to pass to it. Each list item
             may be a string or a target. For instance, passing the return value of executable as
             the  first item will run that executable, or passing a string as the first item will
             find that command in `PATH` and run it.

           depends list[build_tgt | custom_tgt | custom_idx]
             A list of targets that this target depends on  but  which  are  not  listed  in  the
             command  array  (because,  for  example,  the  script does file globbing internally,
             custom_idx was not possible as a type between 0.60 and 1.4.0).

           env env | list[str] | dict[str], since 0.57.0
             environment variables to set, such as `{'NAME1': 'value1',  'NAME2':  'value2'}`  or
             `['NAME1=value1', 'NAME2=value2']`, or an env object which allows more sophisticated
             environment juggling.

   set_variable()
       SYNOPSIS
           void set_variable(variable_name, value)

       DESCRIPTION
           Assigns a value to the given variable  name.  Calling  `set_variable('foo',  bar)`  is
           equivalent to `foo = bar`.

           (since 0.46.1) The `value` parameter can be an array type.

       POSARGS
           variable_name str, required
             The name of the variable to set

           value any, required
             The value to set the variable to

   shared_library()
       SYNOPSIS
           lib shared_library(
               target_name,
               source...,
               <lang>_args:,
               <lang>_pch:,
               build_by_default: true,
               build_rpath:,
               d_debug:,
               d_import_dirs:,
               d_module_versions:,
               d_unittest: false,
               darwin_versions:,
               dependencies:,
               extra_files:,
               gnu_symbol_visibility:,
               gui_app: false,
               implicit_include_directories: true,
               include_directories:,
               install: false,
               install_dir:,
               install_mode:,
               install_rpath:,
               install_tag:,
               link_args:,
               link_depends:,
               link_language:,
               link_whole:,
               link_with:,
               name_prefix:,
               name_suffix:,
               native: false,
               objects:,
               override_options:,
               rust_abi:,
               rust_crate_type:,
               rust_dependency_map:,
               sources:,
               soversion:,
               vala_args:,
               version:,
               vs_module_defs:,
               win_subsystem: 'console',
           )

       DESCRIPTION
           Builds a shared library with the given sources.

       POSARGS
           target_name str, required
             The unique name of the build target

       VARARGS
           source str | file | custom_tgt | custom_idx | generated_list, 0...N times
             Input source to compile. The following types are supported:

             - Strings relative to the current source directory
             - file objects defined in any preceding build file
             - The return value of configure-time generators such as configure_file
             -   The   return   value   of   build-time   generators  such  as  custom_target  or
             generator.process

             These input files can be sources, objects, libraries, or any other file. Meson  will
             automatically  categorize  them based on the extension and use them accordingly. For
             instance, sources (`.c`, `.cpp`, `.vala`, `.rs`, etc) will be compiled  and  objects
             (`.o`, `.obj`) and libraries (`.so`, `.dll`, etc) will be linked.

             With  the  Ninja backend, Meson will create a build-time order-only dependency[3] on
             all generated input files, including unknown files. This is needed to bootstrap  the
             generation  of the real dependencies in the depfile[4] generated by your compiler to
             determine when to rebuild sources. Ninja relies on  this  dependency  file  for  all
             input  files,  generated  and  non-generated.   The  behavior  is  similar for other
             backends.

       KWARGS
           <lang>_args list[str]
             compiler flags to use for the given language; eg: `cpp_args` for C++

           <lang>_pch str
             precompiled header file to use for the given language

           build_by_default bool, default: true, since 0.38.0
             Causes, when set to `true`, to have this target be built by default.  This means  it
             will  be  built  when  `meson  compile` is called without any arguments. The default
             value is `true` for all built target types.

           build_rpath str, since 0.42.0
             A string to add to target's rpath definition in the build dir,  but  which  will  be
             removed on install

           d_debug list[str]
             The D version identifiers[5] to add during the compilation of D source files.

           d_import_dirs list[str]
             List  of  directories  to  look  in  for  string  imports  used in the D programming
             language.

           d_module_versions list[str | int]
             List of module version identifiers set when compiling D sources.

           d_unittest bool, default: false
             When set to true, the D modules are compiled in debug mode.

           darwin_versions str | int | list[str], since 0.48.0
             Defines the `compatibility version` and `current version` for the  dylib  on  macOS.
             If  a  list  is specified, it must be either zero, one, or two elements. If only one
             element is specified or if it's not a list, the specified value  will  be  used  for
             setting  both  compatibility  version  and  current  version.  If  unspecified,  the
             `soversion` will be used as per the aforementioned rules.

           dependencies list[dep]
             one or more dependency objects created with dependency or compiler.find_library (for
             external deps) or declare_dependency (for deps built by the project)

           extra_files str | file | custom_tgt | custom_idx
             Not used for the build itself but are shown as source files in IDEs that group files
             by targets (such as Visual Studio)

           gnu_symbol_visibility str, since 0.48.0
             Specifies how symbols  should  be  exported,  see  e.g  the  GCC  Wiki[6]  for  more
             information.  This  value  can  either  be  an  empty  string  or  one of `default`,
             `internal`, `hidden`, `protected` or `inlineshidden`, which is the same as  `hidden`
             but  also  includes  things  like  C++ implicit constructors as specified in the GCC
             manual. Ignored on compilers that do not support GNU visibility arguments.

           gui_app bool, default: false, deprecated since 0.56.0
             When set to true flags this target as a GUI  application  on  platforms  where  this
             makes a difference, deprecated since 0.56.0, use `win_subsystem` instead.

           implicit_include_directories bool, default: true, since 0.42.0
             Controls  whether Meson adds the current source and build directories to the include
             path

           include_directories list[inc | str]
             one or more objects created with the include_directories function, or (since 0.50.0)
             strings, which will be transparently expanded to include directory objects

           install bool, default: false
             When set to true, this executable should be installed.

           install_dir str
             override  install  directory for this file. If the value is a relative path, it will
             be considered relative the `prefix` option.  For example, if  you  want  to  install
             plugins   into   a   subdir,   you'd   use   something  like  this:  `install_dir  :
             get_option('libdir') / 'projectname-1.0'`.

           install_mode list[str | int], since 0.47.0
             Specify the file mode in symbolic format and optionally the owner/uid and  group/gid
             for the installed files.

             See the `install_mode` kwarg of install_data for more information.

           install_rpath str
             A  string  to  set  the  target's  rpath  to after install (but not before that). On
             Windows, this argument has no effect.

           install_tag str, since 0.60.0
             A string used by the `meson install --tags` command to install only a subset of  the
             files.  By  default  all  build  targets  have  the  tag `runtime` except for static
             libraries that have the `devel` tag.

           link_args list[str]
             Flags to use during linking. You can use UNIX-style flags here for all platforms.

           link_depends str | file | custom_tgt | custom_idx
             Strings, files, or custom targets  the  link  step  depends  on  such  as  a  symbol
             visibility  map.  The  purpose  is to automatically trigger a re-link (but not a re-
             compile) of the target when this file changes.

           link_language str, since 0.51.0
             Makes the linker for this target be for the specified  language.   It  is  generally
             unnecessary to set this, as Meson will detect the right linker to use in most cases.
             There are only two cases where this  is  needed.  One,  your  main  function  in  an
             executable  is  not  in  the  language  Meson  picked, or second you want to force a
             library to use only one ABI.

             (broken until 0.55.0)

           link_whole list[lib | custom_tgt | custom_idx], since 0.40.0
             Links all contents of the given static libraries  whether  they  are  used  or  not,
             equivalent to the `-Wl,--whole-archive` argument flag of GCC, or the ´/WHOLEARCHIVE'
             MSVC linker option. This allows the linked target  to  re-export  symbols  from  all
             objects in the static libraries.

             (since 0.41.0) If passed a list that list will be flattened.

             (since  0.51.0)  This  argument also accepts outputs produced by custom targets. The
             user must ensure that the output is a library in the correct format.

           link_with list[lib | custom_tgt | custom_idx]
             One or more shared or static libraries (built by  this  project)  that  this  target
             should  be linked with. (since 0.41.0) If passed a list this list will be flattened.
             (since 0.51.0) The arguments can also be custom targets.  In this  case  Meson  will
             assume  that  merely adding the output file in the linker command line is sufficient
             to make linking work. If this is not sufficient, then the build system  writer  must
             write all other steps manually.

           name_prefix str | list[void]
             The  string  that  will  be  used  as  the  prefix for the target output filename by
             overriding the default (only used for libraries). By default this is  `lib`  on  all
             platforms  and  compilers,  except  for MSVC shared libraries where it is omitted to
             follow convention, and Cygwin shared libraries where it is `cyg`.

             Set this to `[]`, or omit the keyword argument for the default behaviour.

           name_suffix str | list[void]
             The string that will be used as the extension  for  the  target  by  overriding  the
             default.  By default on Windows this is `exe` for executables and on other platforms
             it is omitted.

             For shared libraries, the default value is `dylib` on macOS, `dll` on  Windows,  and
             `so`  everywhere  else.   For  static libraries, it is `a` everywhere. By convention
             MSVC static libraries use the `lib` suffix, but we use `a` to avoid a potential name
             clash  with  shared  libraries  which  also  generate  import libraries with a `lib`
             suffix.

             Set this to `[]`, or omit the keyword argument for the default behaviour.

           native bool, default: false
             Controls whether the target is compiled for the build or host machines.

           objects list[extracted_obj | file | str]
             List of object files that should be linked in this target.

             Since 1.1.0 this can include generated files in addition to object  files  that  you
             don't  have  source  to  or  that  object files produced by other build targets.  In
             earlier release, generated object files had to be placed in `sources`.

           override_options list[str] | dict[str | bool | int | list[str]], since 0.40.0
             takes an array of strings  in  the  same  format  as  `project`'s  `default_options`
             overriding  the  values  of  these  options  for this target only.  (since 1.2.0): A
             dictionary may now be passed.

           rust_abi str, since 1.3.0
             Set the specific ABI to compile (when compiling rust).  - 'rust' (default): Create a
             "dylib" crate.
             - 'c': Create a "cdylib" crate.

           rust_crate_type str, deprecated since 1.3.0, since 0.42.0
             Set the specific type of rust crate to compile (when compiling rust).

             If the target is an executable this defaults to "bin", the only allowed value.

             If  it  is  a static_library it defaults to "lib", and may be "lib", "staticlib", or
             "rlib". If "lib" then Rustc will pick a default, "staticlib" means a C ABI  library,
             "rlib" means a Rust ABI.

             If it is a shared_library it defaults to "lib", and may be "lib", "dylib", "cdylib",
             or "proc-macro". If "lib" then Rustc will pick a default, "cdylib"  means  a  C  ABI
             library,  "dylib"  means  a  Rust ABI, and "proc-macro" is a special rust procedural
             macro crate.

             "proc-macro" is new in 0.62.0.

             Since 1.3.0  this  is  deprecated  and  replaced  by  "rust_abi"  keyword  argument.
             `proc_macro` crates are now handled by the `rust.proc_macro()`[7] method.

           rust_dependency_map dict[str], since 1.2.0
             On rust targets this provides a map of library names to the crate name with which it
             would be available inside the rust code.

             This allows renaming similar to the dependency renaming feature of cargo or  `extern
             crate foo as bar` inside rust code.

           sources str | file | custom_tgt | custom_idx | generated_list | structured_src
             Additional source files. Same as the source varargs.

           soversion str | int
             A string or integer specifying the soversion of this shared library, such as `0`. On
             Linux and Windows this is used to set the soversion (or equivalent) in the filename.
             For example, if `soversion` is `4`, a Windows DLL will be called `foo-4.dll` and one
             of the aliases of the Linux shared library would be `libfoo.so.4`. If  this  is  not
             specified,  the first part of `version` is used instead (see below). For example, if
             `version` is `3.6.0` and `soversion` is not defined, it is set to `3`.

           vala_args list[str | file]
             Compiler flags for Vala. Unlike other languages this may contain Files

           version str
             A string specifying the version of this shared library, such as  `1.1.0`.  On  Linux
             and  OS  X,  this is used to set the shared library version in the filename, such as
             `libfoo.so.1.1.0` and `libfoo.1.1.0.dylib`. If this is not specified, `soversion` is
             used instead (see above).

           vs_module_defs str | file | custom_tgt | custom_idx
             Specify  a Microsoft module definition file for controlling symbol exports, etc., on
             platforms where that is possible (e.g. Windows).

             (Since 1.3.0) custom_idx are supported

           win_subsystem str, default: 'console', since 0.56.0
             Specifies the subsystem type to use on the Windows platform. Typical values  include
             `console`  for  text  mode  programs  and `windows` for gui apps. The value can also
             contain version specification such as `windows,6.0`. See MSDN  documentation[8]  for
             the full list.

   shared_module()
       SYNOPSIS
           build_tgt shared_module(
               target_name,
               source...,
               <lang>_args:,
               <lang>_pch:,
               build_by_default: true,
               build_rpath:,
               d_debug:,
               d_import_dirs:,
               d_module_versions:,
               d_unittest: false,
               dependencies:,
               extra_files:,
               gnu_symbol_visibility:,
               gui_app: false,
               implicit_include_directories: true,
               include_directories:,
               install: false,
               install_dir:,
               install_mode:,
               install_rpath:,
               install_tag:,
               link_args:,
               link_depends:,
               link_language:,
               link_whole:,
               link_with:,
               name_prefix:,
               name_suffix:,
               native: false,
               objects:,
               override_options:,
               rust_abi:,
               rust_crate_type:,
               rust_dependency_map:,
               sources:,
               vala_args:,
               vs_module_defs:,
               win_subsystem: 'console',
           )

           since 0.37.0

       DESCRIPTION
           Builds a shared module with the given sources.

           This  is  useful  for building modules that will be `dlopen()`ed and hence may contain
           undefined symbols that will be provided by the library that is loading it.

           If you want the shared module to be able to refer to functions and  variables  defined
           in  the executable it is loaded by, you will need to set the `export_dynamic` argument
           of the executable to `true`.

       POSARGS
           target_name str, required
             The unique name of the build target

       VARARGS
           source str | file | custom_tgt | custom_idx | generated_list, 0...N times
             Input source to compile. The following types are supported:

             - Strings relative to the current source directory
             - file objects defined in any preceding build file
             - The return value of configure-time generators such as configure_file
             -  The  return  value  of   build-time   generators   such   as   custom_target   or
             generator.process

             These  input files can be sources, objects, libraries, or any other file. Meson will
             automatically categorize them based on the extension and use them  accordingly.  For
             instance,  sources  (`.c`, `.cpp`, `.vala`, `.rs`, etc) will be compiled and objects
             (`.o`, `.obj`) and libraries (`.so`, `.dll`, etc) will be linked.

             With the Ninja backend, Meson will create a build-time order-only  dependency[3]  on
             all  generated input files, including unknown files. This is needed to bootstrap the
             generation of the real dependencies in the depfile[4] generated by your compiler  to
             determine  when  to  rebuild  sources.  Ninja relies on this dependency file for all
             input files, generated  and  non-generated.   The  behavior  is  similar  for  other
             backends.

       KWARGS
           <lang>_args list[str]
             compiler flags to use for the given language; eg: `cpp_args` for C++

           <lang>_pch str
             precompiled header file to use for the given language

           build_by_default bool, default: true, since 0.38.0
             Causes,  when set to `true`, to have this target be built by default.  This means it
             will be built when `meson compile` is called  without  any  arguments.  The  default
             value is `true` for all built target types.

           build_rpath str, since 0.42.0
             A  string  to  add  to target's rpath definition in the build dir, but which will be
             removed on install

           d_debug list[str]
             The D version identifiers[5] to add during the compilation of D source files.

           d_import_dirs list[str]
             List of directories to look  in  for  string  imports  used  in  the  D  programming
             language.

           d_module_versions list[str | int]
             List of module version identifiers set when compiling D sources.

           d_unittest bool, default: false
             When set to true, the D modules are compiled in debug mode.

           dependencies list[dep]
             one or more dependency objects created with dependency or compiler.find_library (for
             external deps) or declare_dependency (for deps built by the project)

           extra_files str | file | custom_tgt | custom_idx
             Not used for the build itself but are shown as source files in IDEs that group files
             by targets (such as Visual Studio)

           gnu_symbol_visibility str, since 0.48.0
             Specifies  how  symbols  should  be  exported,  see  e.g  the  GCC  Wiki[6] for more
             information. This value  can  either  be  an  empty  string  or  one  of  `default`,
             `internal`,  `hidden`, `protected` or `inlineshidden`, which is the same as `hidden`
             but also includes things like C++ implicit constructors  as  specified  in  the  GCC
             manual. Ignored on compilers that do not support GNU visibility arguments.

           gui_app bool, default: false, deprecated since 0.56.0
             When  set  to  true  flags  this target as a GUI application on platforms where this
             makes a difference, deprecated since 0.56.0, use `win_subsystem` instead.

           implicit_include_directories bool, default: true, since 0.42.0
             Controls whether Meson adds the current source and build directories to the  include
             path

           include_directories list[inc | str]
             one or more objects created with the include_directories function, or (since 0.50.0)
             strings, which will be transparently expanded to include directory objects

           install bool, default: false
             When set to true, this executable should be installed.

           install_dir str
             override install directory for this file. If the value is a relative path,  it  will
             be  considered  relative  the  `prefix` option.  For example, if you want to install
             plugins  into  a  subdir,  you'd   use   something   like   this:   `install_dir   :
             get_option('libdir') / 'projectname-1.0'`.

           install_mode list[str | int], since 0.47.0
             Specify  the file mode in symbolic format and optionally the owner/uid and group/gid
             for the installed files.

             See the `install_mode` kwarg of install_data for more information.

           install_rpath str
             A string to set the target's rpath to  after  install  (but  not  before  that).  On
             Windows, this argument has no effect.

           install_tag str, since 0.60.0
             A  string used by the `meson install --tags` command to install only a subset of the
             files. By default all build  targets  have  the  tag  `runtime`  except  for  static
             libraries that have the `devel` tag.

           link_args list[str]
             Flags to use during linking. You can use UNIX-style flags here for all platforms.

           link_depends str | file | custom_tgt | custom_idx
             Strings,  files,  or  custom  targets  the  link  step  depends  on such as a symbol
             visibility map. The purpose is to automatically trigger a re-link  (but  not  a  re-
             compile) of the target when this file changes.

           link_language str, since 0.51.0
             Makes  the  linker  for  this target be for the specified language.  It is generally
             unnecessary to set this, as Meson will detect the right linker to use in most cases.
             There  are  only  two  cases  where  this  is  needed. One, your main function in an
             executable is not in the language Meson picked,  or  second  you  want  to  force  a
             library to use only one ABI.

             (broken until 0.55.0)

           link_whole list[lib | custom_tgt | custom_idx], since 0.40.0
             Links  all  contents  of  the  given  static libraries whether they are used or not,
             equivalent to the `-Wl,--whole-archive` argument flag of GCC, or the ´/WHOLEARCHIVE'
             MSVC  linker  option.  This  allows  the linked target to re-export symbols from all
             objects in the static libraries.

             (since 0.41.0) If passed a list that list will be flattened.

             (since 0.51.0) This argument also accepts outputs produced by  custom  targets.  The
             user must ensure that the output is a library in the correct format.

           link_with list[lib | custom_tgt | custom_idx]
             One  or  more  shared  or  static libraries (built by this project) that this target
             should be linked with. (since 0.41.0) If passed a list this list will be  flattened.
             (since  0.51.0)  The  arguments can also be custom targets.  In this case Meson will
             assume that merely adding the output file in the linker command line  is  sufficient
             to  make  linking work. If this is not sufficient, then the build system writer must
             write all other steps manually.

           name_prefix str | list[void]
             The string that will be used as  the  prefix  for  the  target  output  filename  by
             overriding  the  default  (only used for libraries). By default this is `lib` on all
             platforms and compilers, except for MSVC shared libraries where  it  is  omitted  to
             follow convention, and Cygwin shared libraries where it is `cyg`.

             Set this to `[]`, or omit the keyword argument for the default behaviour.

           name_suffix str | list[void]
             The  string  that  will  be  used  as the extension for the target by overriding the
             default. By default on Windows this is `exe` for executables and on other  platforms
             it is omitted.

             For  shared  libraries, the default value is `dylib` on macOS, `dll` on Windows, and
             `so` everywhere else.  For static libraries, it is  `a`  everywhere.  By  convention
             MSVC static libraries use the `lib` suffix, but we use `a` to avoid a potential name
             clash with shared libraries which  also  generate  import  libraries  with  a  `lib`
             suffix.

             Set this to `[]`, or omit the keyword argument for the default behaviour.

           native bool, default: false
             Controls whether the target is compiled for the build or host machines.

           objects list[extracted_obj | file | str]
             List of object files that should be linked in this target.

             Since  1.1.0  this  can include generated files in addition to object files that you
             don't have source to or that object files  produced  by  other  build  targets.   In
             earlier release, generated object files had to be placed in `sources`.

           override_options list[str] | dict[str | bool | int | list[str]], since 0.40.0
             takes  an  array  of  strings  in  the  same format as `project`'s `default_options`
             overriding the values of these options for  this  target  only.   (since  1.2.0):  A
             dictionary may now be passed.

           rust_abi str, since 1.3.0
             Set the specific ABI to compile (when compiling rust).  - 'rust' (default): Create a
             "dylib" crate.
             - 'c': Create a "cdylib" crate.

           rust_crate_type str, deprecated since 1.3.0, since 0.42.0
             Set the specific type of rust crate to compile (when compiling rust).

             If the target is an executable this defaults to "bin", the only allowed value.

             If it is a static_library it defaults to "lib", and may be  "lib",  "staticlib",  or
             "rlib".  If "lib" then Rustc will pick a default, "staticlib" means a C ABI library,
             "rlib" means a Rust ABI.

             If it is a shared_library it defaults to "lib", and may be "lib", "dylib", "cdylib",
             or  "proc-macro".  If  "lib"  then Rustc will pick a default, "cdylib" means a C ABI
             library, "dylib" means a Rust ABI, and "proc-macro" is  a  special  rust  procedural
             macro crate.

             "proc-macro" is new in 0.62.0.

             Since  1.3.0  this  is  deprecated  and  replaced  by  "rust_abi"  keyword argument.
             `proc_macro` crates are now handled by the `rust.proc_macro()`[7] method.

           rust_dependency_map dict[str], since 1.2.0
             On rust targets this provides a map of library names to the crate name with which it
             would be available inside the rust code.

             This  allows renaming similar to the dependency renaming feature of cargo or `extern
             crate foo as bar` inside rust code.

           sources str | file | custom_tgt | custom_idx | generated_list | structured_src
             Additional source files. Same as the source varargs.

           vala_args list[str | file]
             Compiler flags for Vala. Unlike other languages this may contain Files

           vs_module_defs str | file | custom_tgt | custom_idx, since 0.52.0
             Specify a Microsoft module definition file for controlling symbol exports, etc.,  on
             platforms where that is possible (e.g. Windows).

             (Since 1.3.0) custom_idx are supported

           win_subsystem str, default: 'console', since 0.56.0
             Specifies  the subsystem type to use on the Windows platform. Typical values include
             `console` for text mode programs and `windows` for gui  apps.  The  value  can  also
             contain  version  specification such as `windows,6.0`. See MSDN documentation[8] for
             the full list.

       NOTES
           *Linking to a shared module on platforms other than Android is deprecated, and will be
           an  error  in  the  future*.  It was previously allowed because it was the only way to
           have a shared-library-like target that  contained  references  to  undefined  symbols.
           However,  since  0.40.0,  the `override_options:` build_target keyword argument can be
           used to create such a shared_library by passing `override_options:  'b_lundef=false'`.
           Shared  modules  have  other characteristics that make them incompatible with linking,
           such as a lack of SONAME.  On macOS and iOS, linking to shared modules  is  disallowed
           by  the  linker,  so we disallow it at configure time.  On Android, if a shared module
           `foo` uses symbols from another shared module `bar`, `foo`  must  also  be  linked  to
           `bar`.  Hence,  linking  one  shared  module  to  another  will always be allowed when
           building for Android.

   static_library()
       SYNOPSIS
           lib static_library(
               target_name,
               source...,
               <lang>_args:,
               <lang>_pch:,
               build_by_default: true,
               build_rpath:,
               d_debug:,
               d_import_dirs:,
               d_module_versions:,
               d_unittest: false,
               dependencies:,
               extra_files:,
               gnu_symbol_visibility:,
               gui_app: false,
               implicit_include_directories: true,
               include_directories:,
               install: false,
               install_dir:,
               install_mode:,
               install_rpath:,
               install_tag:,
               link_args:,
               link_depends:,
               link_language:,
               link_whole:,
               link_with:,
               name_prefix:,
               name_suffix:,
               native: false,
               objects:,
               override_options:,
               pic:,
               prelink:,
               rust_abi:,
               rust_crate_type:,
               rust_dependency_map:,
               sources:,
               vala_args:,
               win_subsystem: 'console',
           )

       DESCRIPTION
           Builds a static library with the given sources.

       POSARGS
           target_name str, required
             The unique name of the build target

       VARARGS
           source str | file | custom_tgt | custom_idx | generated_list, 0...N times
             Input source to compile. The following types are supported:

             - Strings relative to the current source directory
             - file objects defined in any preceding build file
             - The return value of configure-time generators such as configure_file
             -  The  return  value  of   build-time   generators   such   as   custom_target   or
             generator.process

             These  input files can be sources, objects, libraries, or any other file. Meson will
             automatically categorize them based on the extension and use them  accordingly.  For
             instance,  sources  (`.c`, `.cpp`, `.vala`, `.rs`, etc) will be compiled and objects
             (`.o`, `.obj`) and libraries (`.so`, `.dll`, etc) will be linked.

             With the Ninja backend, Meson will create a build-time order-only  dependency[3]  on
             all  generated input files, including unknown files. This is needed to bootstrap the
             generation of the real dependencies in the depfile[4] generated by your compiler  to
             determine  when  to  rebuild  sources.  Ninja relies on this dependency file for all
             input files, generated  and  non-generated.   The  behavior  is  similar  for  other
             backends.

       KWARGS
           <lang>_args list[str]
             compiler flags to use for the given language; eg: `cpp_args` for C++

           <lang>_pch str
             precompiled header file to use for the given language

           build_by_default bool, default: true, since 0.38.0
             Causes,  when set to `true`, to have this target be built by default.  This means it
             will be built when `meson compile` is called  without  any  arguments.  The  default
             value is `true` for all built target types.

           build_rpath str, since 0.42.0
             A  string  to  add  to target's rpath definition in the build dir, but which will be
             removed on install

           d_debug list[str]
             The D version identifiers[5] to add during the compilation of D source files.

           d_import_dirs list[str]
             List of directories to look  in  for  string  imports  used  in  the  D  programming
             language.

           d_module_versions list[str | int]
             List of module version identifiers set when compiling D sources.

           d_unittest bool, default: false
             When set to true, the D modules are compiled in debug mode.

           dependencies list[dep]
             one or more dependency objects created with dependency or compiler.find_library (for
             external deps) or declare_dependency (for deps built by the project)

           extra_files str | file | custom_tgt | custom_idx
             Not used for the build itself but are shown as source files in IDEs that group files
             by targets (such as Visual Studio)

           gnu_symbol_visibility str, since 0.48.0
             Specifies  how  symbols  should  be  exported,  see  e.g  the  GCC  Wiki[6] for more
             information. This value  can  either  be  an  empty  string  or  one  of  `default`,
             `internal`,  `hidden`, `protected` or `inlineshidden`, which is the same as `hidden`
             but also includes things like C++ implicit constructors  as  specified  in  the  GCC
             manual. Ignored on compilers that do not support GNU visibility arguments.

           gui_app bool, default: false, deprecated since 0.56.0
             When  set  to  true  flags  this target as a GUI application on platforms where this
             makes a difference, deprecated since 0.56.0, use `win_subsystem` instead.

           implicit_include_directories bool, default: true, since 0.42.0
             Controls whether Meson adds the current source and build directories to the  include
             path

           include_directories list[inc | str]
             one or more objects created with the include_directories function, or (since 0.50.0)
             strings, which will be transparently expanded to include directory objects

           install bool, default: false
             When set to true, this executable should be installed.

           install_dir str
             override install directory for this file. If the value is a relative path,  it  will
             be  considered  relative  the  `prefix` option.  For example, if you want to install
             plugins  into  a  subdir,  you'd   use   something   like   this:   `install_dir   :
             get_option('libdir') / 'projectname-1.0'`.

           install_mode list[str | int], since 0.47.0
             Specify  the file mode in symbolic format and optionally the owner/uid and group/gid
             for the installed files.

             See the `install_mode` kwarg of install_data for more information.

           install_rpath str
             A string to set the target's rpath to  after  install  (but  not  before  that).  On
             Windows, this argument has no effect.

           install_tag str, since 0.60.0
             A  string used by the `meson install --tags` command to install only a subset of the
             files. By default all build  targets  have  the  tag  `runtime`  except  for  static
             libraries that have the `devel` tag.

           link_args list[str]
             Flags to use during linking. You can use UNIX-style flags here for all platforms.

           link_depends str | file | custom_tgt | custom_idx
             Strings,  files,  or  custom  targets  the  link  step  depends  on such as a symbol
             visibility map. The purpose is to automatically trigger a re-link  (but  not  a  re-
             compile) of the target when this file changes.

           link_language str, since 0.51.0
             Makes  the  linker  for  this target be for the specified language.  It is generally
             unnecessary to set this, as Meson will detect the right linker to use in most cases.
             There  are  only  two  cases  where  this  is  needed. One, your main function in an
             executable is not in the language Meson picked,  or  second  you  want  to  force  a
             library to use only one ABI.

             (broken until 0.55.0)

           link_whole list[lib | custom_tgt | custom_idx], since 0.40.0
             Links  all  contents  of  the  given  static libraries whether they are used or not,
             equivalent to the `-Wl,--whole-archive` argument flag of GCC, or the ´/WHOLEARCHIVE'
             MSVC  linker  option.  This  allows  the linked target to re-export symbols from all
             objects in the static libraries.

             (since 0.41.0) If passed a list that list will be flattened.

             (since 0.51.0) This argument also accepts outputs produced by  custom  targets.  The
             user must ensure that the output is a library in the correct format.

           link_with list[lib | custom_tgt | custom_idx]
             One  or  more  shared  or  static libraries (built by this project) that this target
             should be linked with. (since 0.41.0) If passed a list this list will be  flattened.
             (since  0.51.0)  The  arguments can also be custom targets.  In this case Meson will
             assume that merely adding the output file in the linker command line  is  sufficient
             to  make  linking work. If this is not sufficient, then the build system writer must
             write all other steps manually.

           name_prefix str | list[void]
             The string that will be used as  the  prefix  for  the  target  output  filename  by
             overriding  the  default  (only used for libraries). By default this is `lib` on all
             platforms and compilers, except for MSVC shared libraries where  it  is  omitted  to
             follow convention, and Cygwin shared libraries where it is `cyg`.

             Set this to `[]`, or omit the keyword argument for the default behaviour.

           name_suffix str | list[void]
             The  string  that  will  be  used  as the extension for the target by overriding the
             default. By default on Windows this is `exe` for executables and on other  platforms
             it is omitted.

             For  shared  libraries, the default value is `dylib` on macOS, `dll` on Windows, and
             `so` everywhere else.  For static libraries, it is  `a`  everywhere.  By  convention
             MSVC static libraries use the `lib` suffix, but we use `a` to avoid a potential name
             clash with shared libraries which  also  generate  import  libraries  with  a  `lib`
             suffix.

             Set this to `[]`, or omit the keyword argument for the default behaviour.

           native bool, default: false
             Controls whether the target is compiled for the build or host machines.

           objects list[extracted_obj | file | str]
             List of object files that should be linked in this target.

             Since  1.1.0  this  can include generated files in addition to object files that you
             don't have source to or that object files  produced  by  other  build  targets.   In
             earlier release, generated object files had to be placed in `sources`.

           override_options list[str] | dict[str | bool | int | list[str]], since 0.40.0
             takes  an  array  of  strings  in  the  same format as `project`'s `default_options`
             overriding the values of these options for  this  target  only.   (since  1.2.0):  A
             dictionary may now be passed.

           pic bool, since 0.36.0
             Builds the library as positional independent code (so it can be linked into a shared
             library). This option has no effect on Windows and OS X since it doesn't make  sense
             on Windows and PIC cannot be disabled on OS X.

           prelink bool, since 0.57.0
             If  `true`  the  object  files in the target will be prelinked, meaning that it will
             contain only one prelinked object file rather than the individual object files.

           rust_abi str, since 1.3.0
             Set the specific ABI to compile (when compiling rust).  - 'rust' (default): Create a
             "rlib" crate.
             - 'c': Create a "staticlib" crate.

           rust_crate_type str, deprecated since 1.3.0, since 0.42.0
             Set the specific type of rust crate to compile (when compiling rust).

             If the target is an executable this defaults to "bin", the only allowed value.

             If  it  is  a static_library it defaults to "lib", and may be "lib", "staticlib", or
             "rlib". If "lib" then Rustc will pick a default, "staticlib" means a C ABI  library,
             "rlib" means a Rust ABI.

             If it is a shared_library it defaults to "lib", and may be "lib", "dylib", "cdylib",
             or "proc-macro". If "lib" then Rustc will pick a default, "cdylib"  means  a  C  ABI
             library,  "dylib"  means  a  Rust ABI, and "proc-macro" is a special rust procedural
             macro crate.

             "proc-macro" is new in 0.62.0.

             Since 1.3.0  this  is  deprecated  and  replaced  by  "rust_abi"  keyword  argument.
             `proc_macro` crates are now handled by the `rust.proc_macro()`[7] method.

           rust_dependency_map dict[str], since 1.2.0
             On rust targets this provides a map of library names to the crate name with which it
             would be available inside the rust code.

             This allows renaming similar to the dependency renaming feature of cargo or  `extern
             crate foo as bar` inside rust code.

           sources str | file | custom_tgt | custom_idx | generated_list | structured_src
             Additional source files. Same as the source varargs.

           vala_args list[str | file]
             Compiler flags for Vala. Unlike other languages this may contain Files

           win_subsystem str, default: 'console', since 0.56.0
             Specifies  the subsystem type to use on the Windows platform. Typical values include
             `console` for text mode programs and `windows` for gui  apps.  The  value  can  also
             contain  version  specification such as `windows,6.0`. See MSDN documentation[8] for
             the full list.

   structured_sources()
       SYNOPSIS
           structured_src structured_sources(root, [additional])

           since 0.62.0

       DESCRIPTION
           Create a StructuredSource object, which is opaque and may be passed as a source to any
           build_target  (including  static_library,  shared_library,  executable, etc.). This is
           useful for languages like Rust, which use the filesystem layout  to  determine  import
           names.  This  is only allowed in Rust targets, and cannot be mixed with non structured
           inputs.

       POSARGS
           root list[str | file | custom_tgt | custom_idx | generated_list], required
             Sources to put at the root of the generated structure

       OPTARGS
           additional dict[str | file | custom_tgt | custom_idx | generated_list]
             Additional sources, where the key is the directory  under  the  root  to  place  the
             values

   subdir()
       SYNOPSIS
           void subdir(dir_name, if_found:)

       DESCRIPTION
           Enters  the  specified  subdirectory  and executes the `meson.build` file in it.  Once
           that is done, it returns and execution continues on the line following this `subdir()`
           command.  Variables  defined  in that `meson.build` file are then available for use in
           later parts of the current build file and in all subsequent build files executed  with
           `subdir()`.

           Note  that  this means that each `meson.build` file in a source tree can and must only
           be executed once.

       POSARGS
           dir_name str, required
             Directory relative to the current `meson.build` to enter.

             Cannot contain `..`

       KWARGS
           if_found list[dep], since 0.44.0
             Only enter the subdir if all dep.found methods return `true`.

   subdir_done()
       SYNOPSIS
           void subdir_done()

           since 0.46.0

       DESCRIPTION
           Stops further  interpretation  of  the  Meson  script  file  from  the  point  of  the
           invocation.  All  steps  executed  up  to this point are valid and will be executed by
           Meson. This means that all targets defined before the  call  of  subdir_done  will  be
           build.

           If  the  current  script  was  called by `subdir` the execution returns to the calling
           directory and continues as if the script had reached the end. If the current script is
           the top level script Meson configures the project as defined up to this point.

       EXAMPLE

               project('example exit', 'cpp')
               executable('exe1', 'exe1.cpp')
               subdir_done()
               executable('exe2', 'exe2.cpp')
           The executable `exe1` will be build, while the executable `exe2` is not build.

   subproject()
       SYNOPSIS
           subproject subproject(
               subproject_name,
               default_options:,
               required: true,
               version:,
           )

       DESCRIPTION
           Takes  the project specified in the positional argument and brings that in the current
           build specification by returning a subproject  object.   Subprojects  must  always  be
           placed  inside the `subprojects` directory at the top source directory. So for example
           a subproject called `foo` must be located in `${MESON_SOURCE_ROOT}/subprojects/foo`.

           - `default_options` (since 0.37.0): an array of default option  values  that  override
           those  set  in  the subproject's `meson.options` (like `default_options` in `project`,
           they only have effect when Meson is run for the first time, and command line arguments
           override any default options in build files). (since 0.54.0): `default_library` built-
           in option can also be overridden. (since 1.2.0): A dictionary may be passed instead of
           array.
           -  `version`:  works  just like the same as in `dependency`. It specifies what version
           the subproject should be, as an example `>=1.0.1`
           - `required` (since 0.48.0): By default, `required` is `true` and Meson will abort  if
           the  subproject  could  not  be  setup.  You  can set this to `false` and then use the
           `.found()` method on the  subproject  object.  You  may  also  pass  the  value  of  a
           `feature`[0] option, same as dependency.

           Note  that  you  can  use the returned subproject object to access any variable in the
           subproject. However, if you want to use a dependency object from inside a  subproject,
           an easier way is to use the `fallback:` keyword argument to dependency.

           See additional documentation[26].

       POSARGS
           subproject_name str, required
             Name of the subproject. The subproject must exist in the `subprojects` directory (or
             the directory specified in the `subproject_dir` of project) as a directory  or  wrap
             file.

       KWARGS
           default_options list[str] | dict[str | bool | int | list[str]], since 0.37.0
             An  array  of  default  option  values  that  override those set in the subproject's
             `meson.options` (like `default_options` in project, they only have effect when Meson
             is  run  for the first time, and command line arguments override any default options
             in build files).  (since 0.54.0): `default_library`  built-in  option  can  also  be
             overridden.  (since 1.2.0): A dictionary may now be passed.

           required bool | feature, default: true, since 0.48.0
             Works just the same as in dependency.

           version str | list[str]
             Works just like the same as in dependency.  It specifies what version the subproject
             should be, as an example `>=1.0.1`.

   summary()
       SYNOPSIS
           void summary(
               key_or_dict,
               [value],
               bool_yn: false,
               list_sep:,
               section:,
           )

           since 0.53.0

       DESCRIPTION
           This function is used to summarize  build  configuration  at  the  end  of  the  build
           process.  This  function  provides a way for projects (and subprojects) to report this
           information in a clear way.

           The content is a series of key/value pairs  grouped  into  sections.  If  the  section
           keyword  argument  is  omitted,  those  key/value  pairs are implicitly grouped into a
           section with no title. key/value pairs can optionally be grouped  into  a  dictionary,
           but  keep  in  mind that dictionaries do not guarantee ordering. `key` must be string,
           `value` can be:

           - an integer, boolean or string
           - since 0.57.0 an external program or a dependency
           - since 0.58.0 a feature option
           - a list of those.

           Instead of calling summary as `summary(key, value)`, it is also possible  to  directly
           pass a dictionary to the summary function, as seen in the example below.

           `summary()`  can be called multiple times as long as the same section/key pair doesn't
           appear twice.  All  sections  will  be  collected  and  printed  at  the  end  of  the
           configuration in the same order as they have been called.

       POSARGS
           key_or_dict  str  | dict[str | bool | int | dep | external_program | list[str | bool |
           int | dep | external_program]], required
             The name of the new entry, or a dict containing multiple  entries.   If  a  dict  is
             passed  it is equivalent to calling summary() once for each key-value pair.  Keep in
             mind that dictionaries do not guarantee ordering.

       OPTARGS
           value str | bool | int | dep | external_program | list[str  |  bool  |  int  |  dep  |
           external_program]
             The value to print for the `key`.  Only valid if `key_or_dict` is a str.

       KWARGS
           bool_yn bool, default: false
             Convert bool values to yes and no

           list_sep str, since 0.54.0
             The  separator to use when printing list values in this summary.  If no separator is
             given, each list item will be printed on its own line.

           section str
             The section to put this summary information under.  If the section keyword  argument
             is omitted, key/value pairs are implicitly grouped into a section with no title.

       EXAMPLE
           Example `meson.build`:
               project('My Project', version : '1.0')
               summary({'bindir': get_option('bindir'),
                       'libdir': get_option('libdir'),
                       'datadir': get_option('datadir'),
                       }, section: 'Directories')
               summary({'Some boolean': false,
                       'Another boolean': true,
                       'Some string': 'Hello World',
                       'A list': ['string', 1, true],
                       }, section: 'Configuration')
           Output:
               My Project 1.0

                 Directories
                   prefix         : /opt/gnome
                   bindir         : bin
                   libdir         : lib/x86_64-linux-gnu
                   datadir        : share

                 Configuration
                   Some boolean   : False
                   Another boolean: True
                   Some string    : Hello World
                   A list         : string
                                    1
                                    True

   test()
       SYNOPSIS
           void test(
               name,
               executable,
               args:,
               depends:,
               env:,
               is_parallel: true,
               priority: 0,
               protocol: 'exitcode',
               should_fail: false,
               suite:,
               timeout: 30,
               verbose: false,
               workdir:,
           )

       DESCRIPTION
           Defines a test to run with the test harness. Takes two positional arguments, the first
           is the name of the test and the second is the executable to run. The executable can be
           an  exe  object  returned  by  executable  or  an external_program object] returned by
           find_program.

           (since 0.55.0) When cross compiling, if an  exe_wrapper  is  needed  and  defined  the
           environment  variable  `MESON_EXE_WRAPPER`  will  be  set  to the string value of that
           wrapper (implementation detail: using `mesonlib.join_args`). Test scripts may use this
           to  run  cross  built  binaries. If your test needs `MESON_EXE_WRAPPER` in cross build
           situations it is your responsibility to return code 77 to tell the harness  to  report
           "skip".

           By  default, environment variable `MALLOC_PERTURB_`[27] is automatically set by `meson
           test` to a  random  value  between  1..255.   This  can  help  find  memory  leaks  on
           configurations using glibc, including with non-GCC compilers. However, this can have a
           performance impact, and may fail a test due to external libraries whose internals  are
           out  of  the  user's  control. To check if this feature is causing an expected runtime
           crash,   disable   the   feature   by   temporarily   setting   environment   variable
           `MALLOC_PERTURB_=0`.  While it's preferable to only temporarily disable this check, if
           a project requires permanent disabling of this check in meson.build do like:
               nomalloc = environment({'MALLOC_PERTURB_': '0'})

               test(..., env: nomalloc, ...)
           By  default,  the   environment   variables   `ASAN_OPTIONS`,   `UBSAN_OPTIONS`,   and
           `MSAN_OPTIONS`  are  set  to  enable  aborting  on  detected  violations and to give a
           backtrace. To suppress this, `ASAN_OPTIONS`, `UBSAN_OPTIONS`, or `MSAN_OPTIONS` can be
           set in the environment.

           In addition to running individual executables as test cases, `test()` can also be used
           to invoke an external test harness.  In this case, it is best to use  `verbose:  true`
           (since  0.62.0)  and,  if  supported by the external harness, `protocol: 'tap'` (since
           0.50.0).  This will ensure that Meson  logs  each  subtest  as  it  runs,  instead  of
           including the whole log at the end of the run.

           Defined  tests can be run in a backend-agnostic way by calling `meson test` inside the
           build dir, or by using backend-specific commands, such as  `ninja  test`  or  `msbuild
           RUN_TESTS.vcxproj`.

       POSARGS
           name str, required
             The unique test id

           executable exe | jar | external_program | file | custom_tgt | custom_idx, required
             The program to execute. (Since 1.4.0) A CustomTarget is also accepted.

       KWARGS
           args list[str | file | build_tgt | custom_tgt | custom_idx]
             Arguments to pass to the executable

           depends list[build_tgt | custom_tgt], since 0.46.0
             specifies that this test depends on the specified target(s), even though it does not
             take any of them as a command line argument. This is  meant  for  cases  where  test
             finds  those  targets  internally, e.g. plugins or globbing. Those targets are built
             before test is executed even if they have `build_by_default : false`.

           env env | list[str] | dict[str]
             environment variables to set, such as `['NAME1=value1', ´NAME2=value2']`, or an  env
             object  which  allows  more  sophisticated  environment  juggling.  (Since 0.52.0) A
             dictionary is also accepted.

           is_parallel bool, default: true
             when false, specifies that no other test must be running at the same  time  as  this
             test

           priority int, default: 0, since 0.52.0
             specifies  the  priority  of a test. Tests with a higher priority are started before
             tests with a lower priority.  The starting order of tests with identical  priorities
             is   implementation-defined.  The  default  priority  is  0,  negative  numbers  are
             permitted.

           protocol str, default: 'exitcode', since 0.50.0
             specifies how the test results are parsed and can be one of  `exitcode`,  `tap`,  or
             `gtest`.  For  more  information about test harness protocol read Unit Tests[1]. The
             following values are accepted:

             - `exitcode`: the executable's exit code is used by the test harness to  record  the
             outcome of the test).
             - `tap`: Test Anything Protocol[2].
             - `gtest` (since 0.55.0): for Google Tests.
             - `rust` (since 0.56.0): for native rust tests

           should_fail bool, default: false
             when  true the test is considered passed if the executable returns a non-zero return
             value (i.e. reports an error)

           suite str | list[str]
             `'label'` (or list of labels `['label1', 'label2']`)  attached  to  this  test.  The
             suite    name    is    qualified    by    a    (sub)project    name   resulting   in
             `(sub)project_name:label`. In the case of a list of strings, the suite names will be
             `(sub)project_name:label1`, `(sub)project_name:label2`, etc.

           timeout int, default: 30
             the amount of seconds the test is allowed to run, a test that exceeds its time limit
             is always considered failed, defaults to 30 seconds. Since 0.57 if timeout is `<= 0`
             the  test  has  infinite duration, in previous versions of Meson the test would fail
             with a timeout immediately.

           verbose bool, default: false, since 0.62.0
             if true, forces the test results to be logged as if `--verbose` was passed to `meson
             test`.

           workdir str
             absolute path that will be used as the working directory for the test

   unset_variable()
       SYNOPSIS
           void unset_variable(varname)

           since 0.60.0

       DESCRIPTION
           Unsets  a  variable.  Referencing a variable which has been unset is an error until it
           has been set again.

       POSARGS
           varname str, required
             The variable to unset.

   vcs_tag()
       SYNOPSIS
           custom_tgt vcs_tag(
               command:,
               fallback: [[meson.project_version]],
               input:,
               output:,
               replace_string: '@VCS_TAG@',
           )

       DESCRIPTION
           This command detects revision control commit information at build time and  places  it
           in the specified output file. This file is guaranteed to be up to date on every build.
           Keywords are similar to custom_target.

           Meson will read the contents of `input`,  substitute  the  `replace_string`  with  the
           detected  revision  number,  and  write  the result to `output`. This method returns a
           custom_tgt object that (as usual) should be  used  to  signal  dependencies  if  other
           targets use the file outputted by this.

           For  example,  if  you  generate  a  header  with this and want to use that in a build
           target, you must add the return value to the sources of  that  build  target.  Without
           that, Meson will not know the order in which to build the targets.

           If  you  desire more specific behavior than what this command provides, you should use
           custom_target.

       KWARGS
           command list[exe | external_program | custom_tgt | file | str]
             The command to execute, see custom_target for details on how this  command  must  be
             specified.

             This  parameter  is  optional.  If  it  is absent, Meson will try its best to find a
             suitable default command.

             (since 0.62.0) file is accepted.

             (since 0.63.0) custom_tgt, exe, and external_program are accepted.

           fallback str, default: [[meson.project_version]]
             Version number to use when no revision control information is present, such as  when
             building from a release tarball.

           input  list[build_tgt  |  custom_idx | custom_tgt | external_program | extracted_obj |
           file | generated_list | str], required
             File to modify (e.g. `version.c.in`).

           output str, required
             File to write the results to (e.g. `version.c`).

           replace_string str, default: '@VCS_TAG@'
             String in the input file to substitute with the commit information.

   warning()
       SYNOPSIS
           void warning(text, more_text...)

           since 0.44.0

       DESCRIPTION
           This function prints its argument to stdout prefixed with WARNING:.

       POSARGS
           text str | int | bool | list[str | int | bool] | dict[str | int | bool], required
             The message to print.

       VARARGS
           more_text str | int | bool | list[str | int | bool] | dict[str | int  |  bool],  0...N
           times, since 0.54.0
             Additional text that will be printed separated by spaces.

   bool.to_int()
       SYNOPSIS
           int bool.to_int()

       DESCRIPTION
           Returns `1` if `true` and `0` if `false`

   bool.to_string()
       SYNOPSIS
           str bool.to_string([true_str], [false_str])

       DESCRIPTION
           Returns  the  string  `'true'` if the boolean is true or `'false'` otherwise.  You can
           also pass it two strings as  positional  arguments  to  specify  what  to  return  for
           true/false.  For  instance,  `bool.to_string('yes',  'no')`  will  return `yes` if the
           boolean is true and `no` if it is false.

       OPTARGS
           true_str str, default: 'true'
             The string to return when the boolean is `true`

           false_str str, default: 'false'
             The string to return when the boolean is `false`

   both_libs.get_shared_lib()
       SYNOPSIS
           lib both_libs.get_shared_lib()

       DESCRIPTION
           Returns the stored shared library

   both_libs.get_static_lib()
       SYNOPSIS
           lib both_libs.get_static_lib()

       DESCRIPTION
           Returns the stored static library

   build_machine.cpu()
       SYNOPSIS
           str build_machine.cpu()

       DESCRIPTION
           Returns a more specific CPU name, such as `i686`, `amd64`, etc.

   build_machine.cpu_family()
       SYNOPSIS
           str build_machine.cpu_family()

       DESCRIPTION
           Returns the CPU family name.  This table[28] contains all known  CPU  families.  These
           are guaranteed to continue working.

   build_machine.endian()
       SYNOPSIS
           str build_machine.endian()

       DESCRIPTION
           returns `'big'` on big-endian systems and `'little'` on little-endian systems.

   build_machine.system()
       SYNOPSIS
           str build_machine.system()

       DESCRIPTION
           Returns  the  operating  system name.  This table[29] Lists all of the currently known
           Operating System names, these are guaranteed to continue working.

   build_tgt.extract_all_objects()
       SYNOPSIS
           extracted_obj build_tgt.extract_all_objects(
               recursive: true,
           )

       DESCRIPTION
           Acts the same as `extract_objects`, but returns all object  files  generated  by  this
           target.

           By  default  only  objects  built  for  this  target are returned to maintain backward
           compatibility with previous versions.  The default value  for  the  `recursive`  kwarg
           will eventually be changed to `true` in a future version.

       KWARGS
           recursive bool, default: true, since 0.46.0
             Also return objects passed to the `objects` argument of this target.

   build_tgt.extract_objects()
       SYNOPSIS
           extracted_obj build_tgt.extract_objects(source...)

       DESCRIPTION
           Returns  an  opaque  value  representing  the  object files generated for those source
           files. This is typically used to take single object files and link them to unit  tests
           or  to  compile  some  source  files  with  custom flags. To use the object file(s) in
           another build target, use  the  `objects:`  keyword  argument  to  a  build_target  or
           declare_dependency, or include them in the command line of a custom_target.

       VARARGS
           source str | file | custom_tgt | custom_idx | generated_list, 1...N times
             Source filenames for which the built objects should be extracted.

   build_tgt.found()
       SYNOPSIS
           bool build_tgt.found()

           since 0.59.0

       DESCRIPTION
           Always  returns  `true`.  This  function  is meant to make executables objects feature
           compatible  with  external_program  objects.  This  simplifies  use-cases   where   an
           executable is used instead of an external_program.

   build_tgt.full_path()
       SYNOPSIS
           str build_tgt.full_path()

       DESCRIPTION
           Returns a full path pointing to the result target file.  NOTE: In most cases using the
           object itself will do the same job as this and will also allow Meson to  setup  inter-
           target dependencies correctly. Please file a bug if that doesn't work for you.

   build_tgt.get_id()
       SYNOPSIS
           str build_tgt.get_id()

           since 0.26.0

       DESCRIPTION
           Returns a unique id for the target

   build_tgt.name()
       SYNOPSIS
           str build_tgt.name()

           since 0.54.0

       DESCRIPTION
           Returns the name of the target.

   build_tgt.outdir()
       SYNOPSIS
           str build_tgt.outdir()

           since 0.26.0

       DESCRIPTION
           Returns the output directory relative to the build root of the target

   build_tgt.path()
       SYNOPSIS
           str build_tgt.path()

           deprecated since 0.59.0, since 0.59.0

       DESCRIPTION
           Does  the  exact  same  as build_tgt.full_path. NOTE: This function is solely kept for
           compatibility with external_program objects.   It  will  be  removed  once  the,  also
           deprecated, corresponding `path()` function in the external_program object is removed.

   build_tgt.private_dir_include()
       SYNOPSIS
           inc build_tgt.private_dir_include()

       DESCRIPTION
           Returns  a  value  that  works  like  include_directories,  but  points to the private
           directory of this target. Usually only needed if an another  target  needs  to  access
           some generated internal headers of this target.

   cfg_data.get()
       SYNOPSIS
           str | int | bool cfg_data.get(varname, [default_value])

           since 0.38.0

       DESCRIPTION
           Returns  the value of `varname`, if the value has not been set returns `default_value`
           if it is defined (since 0.38.0) and errors out if not

       POSARGS
           varname str, required
             The name of the variable to query

       OPTARGS
           default_value str | int | bool
             The default value to return when `varname` does not exist

   cfg_data.get_unquoted()
       SYNOPSIS
           str | int | bool cfg_data.get_unquoted(varname, [default_value])

           since 0.44.0

       DESCRIPTION
           Returns the value of `varname` but without surrounding double  quotes  (`"`).  If  the
           value has not been set returns `default_value` if it is defined and errors out if not.

       POSARGS
           varname str, required
             The name of the variable to query

       OPTARGS
           default_value str | int | bool
             The default value to return when `varname` does not exist

   cfg_data.has()
       SYNOPSIS
           bool cfg_data.has(varname)

       DESCRIPTION
           returns `true` if the specified variable is set

       POSARGS
           varname str, required
             The name of the variable to query

   cfg_data.keys()
       SYNOPSIS
           list[str] cfg_data.keys()

           since 0.57.0

       DESCRIPTION
           Returns an array of keys of the configuration data object.

           You can iterate over this array with the `foreach` statement[30].

   cfg_data.merge_from()
       SYNOPSIS
           void cfg_data.merge_from(other)

           since 0.42.0

       DESCRIPTION
           Takes  as  argument  a different configuration data object and copies all entries from
           that object to the current.

       POSARGS
           other cfg_data, required
             The other cfg_data object to merge into this one.

   cfg_data.set()
       SYNOPSIS
           void cfg_data.set(varname, value, description:)

       DESCRIPTION
           Sets a variable to a given value

       POSARGS
           varname str, required
             The name of the variable to set

           value str | int | bool, required
             The value to set

       KWARGS
           description str
             Message / Comment that will be written in the result file. The replacement assumes a
             file  with  C  syntax. If your generated file is source code in some other language,
             you probably don't want to add a description field because it most likely will cause
             a syntax error.

   cfg_data.set10()
       SYNOPSIS
           void cfg_data.set10(varname, value, description:)

       DESCRIPTION
           Is  the  same  as  cfg_data.set  but the value is either `true` or `false` and will be
           written as 1 or 0, respectively

       POSARGS
           varname str, required
             The name of the variable to set

           value bool | int, required
             The value to set as either `1` or `0`

             Passing numbers was never intended to work, and since 0.62 it has  been  deprecated.
             It will be removed in a future version of Meson. If you need to pass numbers use the
             `.set` method.

       KWARGS
           description str
             Message / Comment that will be written in the result file. The replacement assumes a
             file  with  C  syntax. If your generated file is source code in some other language,
             you probably don't want to add a description field because it most likely will cause
             a syntax error.

       WARNINGS
           numeric values < 0 have the surprising behavior of being converted to `true`, values >
           1 have the more expected but unintentional behavior of being interpreted as `true`.

   cfg_data.set_quoted()
       SYNOPSIS
           void cfg_data.set_quoted(varname, value, description:)

       DESCRIPTION
           Is same as cfg_data.set but quotes the value in double quotes (`"`)

       POSARGS
           varname str, required
             The name of the variable to set

           value str | int | bool, required
             The value to set

       KWARGS
           description str
             Message / Comment that will be written in the result file. The replacement assumes a
             file  with  C  syntax. If your generated file is source code in some other language,
             you probably don't want to add a description field because it most likely will cause
             a syntax error.

   cmake.subproject_options()
       SYNOPSIS
           cmake_options cmake.subproject_options()

       DESCRIPTION
           Returns an empty `cmake_options` object.

   cmake_options.add_cmake_defines()
       SYNOPSIS
           void cmake_options.add_cmake_defines(defines...)

       DESCRIPTION
           Add CMake defines (`-D<VAR>=<VAL>`) to the CMake commandline

       VARARGS
           defines dict[str], 0...N times
             A `key` `value` map of CMake defines to add (`-D<key>=<val>`)

   compiler.alignment()
       SYNOPSIS
           int compiler.alignment(typename, args:, dependencies:, prefix:)

       DESCRIPTION
           Returns  the  alignment  of  the  specified  type.  For  C-like  languages, For C-like
           languages, the header `stddef.h` and `stdio.h`  are  included  implicitly  for  native
           compilation, only `stddef.h` is included when cross-compiling.

       POSARGS
           typename str, required
             The name of the type to check.

       KWARGS
           args list[str]
             Used  to  pass a list of compiler arguments.  Defining include paths for headers not
             in the default include path  via  `-Isome/path/to/header`  is  generally  supported,
             however, usually not recommended.

             This   is   because   include   directories   can   also   be   specified   via  the
             `include_directories` or the `dependency` kwarg (if present).  The same is also true
             for passing libraries to link with `-lfoo`.

           dependencies dep | list[dep]
             Additionally dependencies required for compiling and / or linking.

           prefix str | list[str]
             Used  to  add  `#include`s  and  other things that are required for the symbol to be
             declared. Since 1.0.0 an array is accepted too. When an array is passed,  the  items
             are  concatenated  together  separated  by  a newline.  System definitions should be
             passed via compiler args (eg: `_GNU_SOURCE` is often required for some symbols to be
             exposed on Linux, and it should be passed via `args` keyword argument).

   compiler.check_header()
       SYNOPSIS
           bool compiler.check_header(
               header_name,
               args:,
               dependencies:,
               include_directories:,
               no_builtin_args: false,
               prefix:,
               required: false,
           )

           since 0.47.0

       DESCRIPTION
           Returns   true   if  the  specified  header  is  usable  with  the  specified  prefix,
           dependencies, and arguments.

       POSARGS
           header_name str, required
             The header to check.

       KWARGS
           args list[str]
             Used to pass a list of compiler arguments.  Defining include paths for  headers  not
             in  the  default  include  path  via `-Isome/path/to/header` is generally supported,
             however, usually not recommended.

             This  is   because   include   directories   can   also   be   specified   via   the
             `include_directories` or the `dependency` kwarg (if present).  The same is also true
             for passing libraries to link with `-lfoo`.

           dependencies dep | list[dep]
             Additionally dependencies required for compiling and / or linking.

           include_directories inc | list[inc], since 0.38.0
             Extra directories for header searches.

           no_builtin_args bool, default: false
             When set to `true`, the compiler  arguments  controlled  by  built-in  configuration
             options are not added.

           prefix str | list[str]
             Used  to  add  `#include`s  and  other things that are required for the symbol to be
             declared. Since 1.0.0 an array is accepted too. When an array is passed,  the  items
             are  concatenated  together  separated  by  a newline.  System definitions should be
             passed via compiler args (eg: `_GNU_SOURCE` is often required for some symbols to be
             exposed on Linux, and it should be passed via `args` keyword argument).

           required bool | feature, default: false, since 0.50.0
             When  set  to  `true`,  Meson  will  halt  if the header check fails.  When set to a
             `feature`[0] option, the feature will control if it is searched and whether to  fail
             if not found.

   compiler.cmd_array()
       SYNOPSIS
           list[str] compiler.cmd_array()

       DESCRIPTION
           Returns an array containing the command(s) for the compiler.

   compiler.compiles()
       SYNOPSIS
           bool compiler.compiles(
               code,
               args:,
               dependencies:,
               include_directories:,
               name:,
               no_builtin_args: false,
               required: false,
               werror: false,
           )

       DESCRIPTION
           Returns true if the code compiles.

       POSARGS
           code str | file, required
             The source code to check.

             If  a  string  is passed, the code is used directly. If a file object is passed, its
             content is used for the compiler check.

       KWARGS
           args list[str]
             Used to pass a list of compiler arguments.  Defining include paths for  headers  not
             in  the  default  include  path  via `-Isome/path/to/header` is generally supported,
             however, usually not recommended.

             This  is   because   include   directories   can   also   be   specified   via   the
             `include_directories` or the `dependency` kwarg (if present).  The same is also true
             for passing libraries to link with `-lfoo`.

           dependencies dep | list[dep]
             Additionally dependencies required for compiling and / or linking.

           include_directories inc | list[inc], since 0.38.0
             Extra directories for header searches.

           name str
             The name to use for printing a message about the compiler check.   If  this  keyword
             argument is not passed, no message will be printed about the check.

           no_builtin_args bool, default: false
             When  set  to  `true`,  the  compiler arguments controlled by built-in configuration
             options are not added.

           required bool | feature, default: false, since 1.5.0
             When set to `true`, Meson will halt if the check fails.  When set to a  `feature`[0]
             option, the feature will control if it is searched and whether to fail if not found.

           werror bool, default: false, since 1.3.0
             When set to `true`, compiler warnings are treated as error.

   compiler.compute_int()
       SYNOPSIS
           int compiler.compute_int(
               expr,
               args:,
               dependencies:,
               guess:,
               high: 1024,
               include_directories:,
               low: -1024,
               no_builtin_args: false,
               prefix:,
           )

           since 0.40.0

       DESCRIPTION
           Computes  the  value  of  the  given  expression  (as  an example `1 + 2`). When cross
           compiling this is evaluated with an  iterative  algorithm,  you  can  specify  keyword
           arguments  `low` (defaults to -1024), `high` (defaults to 1024) and `guess` to specify
           max and min values for the search and the value to try first.  For  C-like  languages,
           the  header  `stddef.h`  and `stdio.h` are included implicitly for native compilation,
           only `stddef.h` is included when cross-compiling.

       POSARGS
           expr str, required
             The expression to compute.

       KWARGS
           args list[str]
             Used to pass a list of compiler arguments.  Defining include paths for  headers  not
             in  the  default  include  path  via `-Isome/path/to/header` is generally supported,
             however, usually not recommended.

             This  is   because   include   directories   can   also   be   specified   via   the
             `include_directories` or the `dependency` kwarg (if present).  The same is also true
             for passing libraries to link with `-lfoo`.

           dependencies dep | list[dep]
             Additionally dependencies required for compiling and / or linking.

           guess int
             The value to try first.

           high int, default: 1024
             The max value.

           include_directories inc | list[inc], since 0.38.0
             Extra directories for header searches.

           low int, default: -1024
             The min value.

           no_builtin_args bool, default: false
             When set to `true`, the compiler  arguments  controlled  by  built-in  configuration
             options are not added.

           prefix str | list[str]
             Used  to  add  `#include`s  and  other things that are required for the symbol to be
             declared. Since 1.0.0 an array is accepted too. When an array is passed,  the  items
             are  concatenated  together  separated  by  a newline.  System definitions should be
             passed via compiler args (eg: `_GNU_SOURCE` is often required for some symbols to be
             exposed on Linux, and it should be passed via `args` keyword argument).

   compiler.find_library()
       SYNOPSIS
           dep compiler.find_library(
               libname,
               dirs:,
               disabler: false,
               has_headers:,
               header_args:,
               header_dependencies:,
               header_include_directories:,
               header_no_builtin_args: false,
               header_prefix:,
               header_required:,
               required: true,
               static: false,
           )

       DESCRIPTION
           Tries to find the library specified in the positional argument.

       POSARGS
           libname str, required
             The library to find.

       KWARGS
           dirs list[str]
             Additional directories to search in.

             By  default  the  library  is  searched  for  in  the system library directory (e.g.
             /usr/lib). Specifying more  directories  here,  causes  Meson  to  search  in  those
             directories as well as the system directories.

           disabler bool, default: false, since 0.49.0
             If `true`, this method will return a disabler on a failed check.

           has_headers list[str], since 0.50.0
             List  of  headers  that must be found as well.  This check is equivalent to checking
             each header with a compiler.has_header call.

             When used, kwargs that compiler.has_header would accept can be passed here  prefixed
             with `header_`, and will have the same effect on the header check.

           header_args list[str], since 0.51.0
             When   the   `has_headers`   kwarg   is  also  used,  this  argument  is  passed  to
             compiler.has_header as `args`.

           header_dependencies dep | list[dep], since 0.51.0
             When  the  `has_headers`  kwarg  is  also  used,  this   argument   is   passed   to
             compiler.has_header as `dependencies`.

           header_include_directories inc | list[inc], since 0.51.0
             When   the   `has_headers`   kwarg   is  also  used,  this  argument  is  passed  to
             compiler.has_header as `include_directories`.

           header_no_builtin_args bool, default: false, since 0.51.0
             When  the  `has_headers`  kwarg  is  also  used,  this   argument   is   passed   to
             compiler.has_header as `no_builtin_args`.

           header_prefix str, since 0.51.0
             When   the   `has_headers`   kwarg   is  also  used,  this  argument  is  passed  to
             compiler.has_header as `prefix`.

           header_required bool | feature, since 0.50.0
             When used in conjunction with the has_headers keyword, set the  requirement  of  the
             headers.

           required bool | feature, default: true
             If  set  `true`,  Meson  will abort with an error if the library could not be found.
             Otherwise, Meson will continue and the found method  of  the  returned  object  will
             return `false`.

             When  set  to  a `feature`[0] option, the feature will control if it is searched and
             whether to fail if not found.

             (since 0.47.0) The value of a `feature` option can also be passed here.

           static bool, default: false, since 0.51.0
             If `true`, the search is limited to static libraries only.  Setting  this  value  to
             `false` (the default) will search for both shared and static libraries.

   compiler.first_supported_argument()
       SYNOPSIS
           list[str] compiler.first_supported_argument(arg...)

           since 0.43.0

       DESCRIPTION
           Given  a  list of strings, returns a single-element list containing the first argument
           that passes the compiler.has_argument test or an empty array if none pass.

       VARARGS
           arg str, 0...N times
             The arguments to check.

   compiler.first_supported_link_argument()
       SYNOPSIS
           list[str] compiler.first_supported_link_argument(arg...)

           since 0.46.0

       DESCRIPTION
           Given  a  list  of   strings,   returns   the   first   argument   that   passes   the
           compiler.has_link_argument test or an empty array if none pass.

       VARARGS
           arg str, 0...N times
             The link arguments to check.

   compiler.get_argument_syntax()
       SYNOPSIS
           str compiler.get_argument_syntax()

           since 0.49.0

       DESCRIPTION
           returns  a string identifying the type of arguments the compiler takes.  Can be one of
           `gcc`, `msvc`, or an undefined string value. This method  is  useful  for  identifying
           compilers  that  are not gcc or msvc, but use the same argument syntax as one of those
           two compilers such as clang or icc, especially  when  they  use  different  syntax  on
           different operating systems.

   compiler.get_define()
       SYNOPSIS
           str compiler.get_define(
               definename,
               args:,
               dependencies:,
               include_directories:,
               no_builtin_args: false,
               prefix:,
           )

           since 0.40.0

       DESCRIPTION
           Returns the given preprocessor symbol's value as a string or empty string if it is not
           defined.

           (since 0.47.0) This method will concatenate string literals  as  the  compiler  would.
           E.g. `"a" "b"` will become `"ab"`.

       POSARGS
           definename str, required
             The define to check.

       KWARGS
           args list[str]
             Used  to  pass a list of compiler arguments.  Defining include paths for headers not
             in the default include path  via  `-Isome/path/to/header`  is  generally  supported,
             however, usually not recommended.

             This   is   because   include   directories   can   also   be   specified   via  the
             `include_directories` or the `dependency` kwarg (if present).  The same is also true
             for passing libraries to link with `-lfoo`.

           dependencies dep | list[dep]
             Additionally dependencies required for compiling and / or linking.

           include_directories inc | list[inc], since 0.38.0
             Extra directories for header searches.

           no_builtin_args bool, default: false
             When  set  to  `true`,  the  compiler arguments controlled by built-in configuration
             options are not added.

           prefix str | list[str]
             Used to add `#include`s and other things that are required  for  the  symbol  to  be
             declared.  Since  1.0.0 an array is accepted too. When an array is passed, the items
             are concatenated together separated by a  newline.   System  definitions  should  be
             passed via compiler args (eg: `_GNU_SOURCE` is often required for some symbols to be
             exposed on Linux, and it should be passed via `args` keyword argument).

   compiler.get_id()
       SYNOPSIS
           str compiler.get_id()

       DESCRIPTION
           Returns a string identifying the compiler.  For example, `gcc`, `msvc`, and more[31].

   compiler.get_linker_id()
       SYNOPSIS
           str compiler.get_linker_id()

           since 0.53.0

       DESCRIPTION
           Returns a string identifying the linker.  For example, `ld.bfd`, `link`, and more[32].

   compiler.get_supported_arguments()
       SYNOPSIS
           list[str] compiler.get_supported_arguments(
               arg...,
               checked: 'off',
           )

           since 0.43.0

       DESCRIPTION
           Returns an array containing only the  arguments  supported  by  the  compiler,  as  if
           compiler.has_argument were called on them individually.

       VARARGS
           arg str, 0...N times
             The arguments to check.

       KWARGS
           checked str, default: 'off', since 0.59.0
             Supported values:
               - `'off'`: Quietly ignore unsupported arguments
               - `'warn'`: Print a warning for unsupported arguments
               - `'require'`: Abort if at least one argument is not supported

   compiler.get_supported_function_attributes()
       SYNOPSIS
           list[str] compiler.get_supported_function_attributes(name...)

           since 0.48.0

       DESCRIPTION
           Returns  an  array  containing  any  names  that  are  supported GCC style attributes.
           Equivalent to compiler.has_function_attribute was called on each of them individually.

       VARARGS
           name str, 1...N times
             The attribute names to check.

   compiler.get_supported_link_arguments()
       SYNOPSIS
           list[str] compiler.get_supported_link_arguments(arg...)

           since 0.46.0

       DESCRIPTION
           Returns an array containing only the  arguments  supported  by  the  compiler,  as  if
           compiler.has_link_argument were called on them individually.

       VARARGS
           arg str, 0...N times
             The link arguments to check.

   compiler.has_argument()
       SYNOPSIS
           bool compiler.has_argument(argument, required: false)

       DESCRIPTION
           Returns  `true`  if the compiler accepts the specified command line argument, that is,
           can compile code without erroring out or printing a warning about an unknown flag.

       POSARGS
           argument str, required
             The argument to check.

       KWARGS
           required bool | feature, default: false, since 1.3.0
             When set to `true`, Meson will halt if the check fails.  When set to a  `feature`[0]
             option, the feature will control if it is searched and whether to fail if not found.

   compiler.has_define()
       SYNOPSIS
           bool compiler.has_define(
               definename,
               args:,
               dependencies:,
               include_directories:,
               no_builtin_args: false,
               prefix:,
           )

           since 1.3.0

       DESCRIPTION
           Returns true if the given preprocessor symbol is defined.

       POSARGS
           definename str, required
             The define to check.

       KWARGS
           args list[str]
             Used  to  pass a list of compiler arguments.  Defining include paths for headers not
             in the default include path  via  `-Isome/path/to/header`  is  generally  supported,
             however, usually not recommended.

             This   is   because   include   directories   can   also   be   specified   via  the
             `include_directories` or the `dependency` kwarg (if present).  The same is also true
             for passing libraries to link with `-lfoo`.

           dependencies dep | list[dep]
             Additionally dependencies required for compiling and / or linking.

           include_directories inc | list[inc], since 0.38.0
             Extra directories for header searches.

           no_builtin_args bool, default: false
             When  set  to  `true`,  the  compiler arguments controlled by built-in configuration
             options are not added.

           prefix str | list[str]
             Used to add `#include`s and other things that are required  for  the  symbol  to  be
             declared.  Since  1.0.0 an array is accepted too. When an array is passed, the items
             are concatenated together separated by a  newline.   System  definitions  should  be
             passed via compiler args (eg: `_GNU_SOURCE` is often required for some symbols to be
             exposed on Linux, and it should be passed via `args` keyword argument).

   compiler.has_function()
       SYNOPSIS
           bool compiler.has_function(
               funcname,
               args:,
               dependencies:,
               include_directories:,
               no_builtin_args: false,
               prefix:,
               required: false,
           )

       DESCRIPTION
           Returns true if the given function is provided by the standard library  or  a  library
           passed in with the `args` keyword.

       POSARGS
           funcname str, required
             The function to check.

       KWARGS
           args list[str]
             Used  to  pass a list of compiler arguments.  Defining include paths for headers not
             in the default include path  via  `-Isome/path/to/header`  is  generally  supported,
             however, usually not recommended.

             This   is   because   include   directories   can   also   be   specified   via  the
             `include_directories` or the `dependency` kwarg (if present).  The same is also true
             for passing libraries to link with `-lfoo`.

           dependencies dep | list[dep]
             Additionally dependencies required for compiling and / or linking.

           include_directories inc | list[inc], since 0.38.0
             Extra directories for header searches.

           no_builtin_args bool, default: false
             When  set  to  `true`,  the  compiler arguments controlled by built-in configuration
             options are not added.

           prefix str | list[str]
             Used to add `#include`s and other things that are required  for  the  symbol  to  be
             declared.  Since  1.0.0 an array is accepted too. When an array is passed, the items
             are concatenated together separated by a  newline.   System  definitions  should  be
             passed via compiler args (eg: `_GNU_SOURCE` is often required for some symbols to be
             exposed on Linux, and it should be passed via `args` keyword argument).

           required bool | feature, default: false, since 1.3.0
             When set to `true`, Meson will halt if the check fails.  When set to a  `feature`[0]
             option, the feature will control if it is searched and whether to fail if not found.

   compiler.has_function_attribute()
       SYNOPSIS
           bool compiler.has_function_attribute(
               name,
               required: false,
           )

           since 0.48.0

       DESCRIPTION
           Returns  `true`  if the compiler supports the GNU style (`__attribute__(...)`) `name`.
           This is preferable to manual compile checks as it may be optimized for compilers  that
           do not support such attributes.  This table[33] lists all of the supported attributes.

       POSARGS
           name str, required
             The attribute name to check.

       KWARGS
           required bool | feature, default: false, since 1.3.0
             When  set to `true`, Meson will halt if the check fails.  When set to a `feature`[0]
             option, the feature will control if it is searched and whether to fail if not found.

   compiler.has_header()
       SYNOPSIS
           bool compiler.has_header(
               header_name,
               args:,
               dependencies:,
               include_directories:,
               no_builtin_args: false,
               prefix:,
               required: false,
           )

       DESCRIPTION
           Returns  true  if  the  specified  header  is  exists  with  the   specified   prefix,
           dependencies, and arguments.

           This  method  is  faster than compiler.check_header since it only does a pre-processor
           check.

       POSARGS
           header_name str, required
             The header to check.

       KWARGS
           args list[str]
             Used to pass a list of compiler arguments.  Defining include paths for  headers  not
             in  the  default  include  path  via `-Isome/path/to/header` is generally supported,
             however, usually not recommended.

             This  is   because   include   directories   can   also   be   specified   via   the
             `include_directories` or the `dependency` kwarg (if present).  The same is also true
             for passing libraries to link with `-lfoo`.

           dependencies dep | list[dep]
             Additionally dependencies required for compiling and / or linking.

           include_directories inc | list[inc], since 0.38.0
             Extra directories for header searches.

           no_builtin_args bool, default: false
             When set to `true`, the compiler  arguments  controlled  by  built-in  configuration
             options are not added.

           prefix str | list[str]
             Used  to  add  `#include`s  and  other things that are required for the symbol to be
             declared. Since 1.0.0 an array is accepted too. When an array is passed,  the  items
             are  concatenated  together  separated  by  a newline.  System definitions should be
             passed via compiler args (eg: `_GNU_SOURCE` is often required for some symbols to be
             exposed on Linux, and it should be passed via `args` keyword argument).

           required bool | feature, default: false, since 0.50.0
             When  set  to  `true`,  Meson  will  halt  if the header check fails.  When set to a
             `feature`[0] option, the feature will control if it is searched and whether to  fail
             if not found.

   compiler.has_header_symbol()
       SYNOPSIS
           bool compiler.has_header_symbol(
               header,
               symbol,
               args:,
               dependencies:,
               include_directories:,
               no_builtin_args: false,
               prefix:,
               required: false,
           )

       DESCRIPTION
           Detects whether a particular symbol is declared in the specified header.

           Symbols here include function, variable, `#define`, type definition, etc.

       POSARGS
           header str, required
             The header to check.

           symbol str, required
             The symbol to check.

       KWARGS
           args list[str]
             Used  to  pass a list of compiler arguments.  Defining include paths for headers not
             in the default include path  via  `-Isome/path/to/header`  is  generally  supported,
             however, usually not recommended.

             This   is   because   include   directories   can   also   be   specified   via  the
             `include_directories` or the `dependency` kwarg (if present).  The same is also true
             for passing libraries to link with `-lfoo`.

           dependencies dep | list[dep]
             Additionally dependencies required for compiling and / or linking.

           include_directories inc | list[inc], since 0.38.0
             Extra directories for header searches.

           no_builtin_args bool, default: false
             When  set  to  `true`,  the  compiler arguments controlled by built-in configuration
             options are not added.

           prefix str | list[str]
             Used to add `#include`s and other things that are required  for  the  symbol  to  be
             declared.  Since  1.0.0 an array is accepted too. When an array is passed, the items
             are concatenated together separated by a  newline.   System  definitions  should  be
             passed via compiler args (eg: `_GNU_SOURCE` is often required for some symbols to be
             exposed on Linux, and it should be passed via `args` keyword argument).

           required bool | feature, default: false, since 0.50.0
             When set to `true`, Meson will halt if the  header  check  fails.   When  set  to  a
             `feature`[0]  option, the feature will control if it is searched and whether to fail
             if not found.

   compiler.has_link_argument()
       SYNOPSIS
           bool compiler.has_link_argument(argument, required: false)

           since 0.46.0

       DESCRIPTION
           Returns `true` if the linker accepts the specified command line argument, that is, can
           compile  and  link  code  without  erroring out or printing a warning about an unknown
           flag. Link arguments will be passed to the compiler, so should usually have the `-Wl,`
           prefix. On VisualStudio a `/link` argument will be prepended.

       POSARGS
           argument str, required
             The argument to check.

       KWARGS
           required bool | feature, default: false, since 1.3.0
             When  set to `true`, Meson will halt if the check fails.  When set to a `feature`[0]
             option, the feature will control if it is searched and whether to fail if not found.

   compiler.has_member()
       SYNOPSIS
           bool compiler.has_member(
               typename,
               membername,
               args:,
               dependencies:,
               include_directories:,
               no_builtin_args: false,
               prefix:,
               required: false,
           )

       DESCRIPTION
           Returns true if the type has the specified member.

       POSARGS
           typename str, required
             The type to check.

           membername str, required
             The member to check.

       KWARGS
           args list[str]
             Used to pass a list of compiler arguments.  Defining include paths for  headers  not
             in  the  default  include  path  via `-Isome/path/to/header` is generally supported,
             however, usually not recommended.

             This  is   because   include   directories   can   also   be   specified   via   the
             `include_directories` or the `dependency` kwarg (if present).  The same is also true
             for passing libraries to link with `-lfoo`.

           dependencies dep | list[dep]
             Additionally dependencies required for compiling and / or linking.

           include_directories inc | list[inc], since 0.38.0
             Extra directories for header searches.

           no_builtin_args bool, default: false
             When set to `true`, the compiler  arguments  controlled  by  built-in  configuration
             options are not added.

           prefix str | list[str]
             Used  to  add  `#include`s  and  other things that are required for the symbol to be
             declared. Since 1.0.0 an array is accepted too. When an array is passed,  the  items
             are  concatenated  together  separated  by  a newline.  System definitions should be
             passed via compiler args (eg: `_GNU_SOURCE` is often required for some symbols to be
             exposed on Linux, and it should be passed via `args` keyword argument).

           required bool | feature, default: false, since 1.3.0
             When  set to `true`, Meson will halt if the check fails.  When set to a `feature`[0]
             option, the feature will control if it is searched and whether to fail if not found.

   compiler.has_members()
       SYNOPSIS
           bool compiler.has_members(
               typename,
               member...,
               args:,
               dependencies:,
               include_directories:,
               no_builtin_args: false,
               prefix:,
               required: false,
           )

       DESCRIPTION
           Returns `true` if the type has all the specified members.

       POSARGS
           typename str, required
             The type to check.

       VARARGS
           member str, 1...N times
             The members to check

       KWARGS
           args list[str]
             Used to pass a list of compiler arguments.  Defining include paths for  headers  not
             in  the  default  include  path  via `-Isome/path/to/header` is generally supported,
             however, usually not recommended.

             This  is   because   include   directories   can   also   be   specified   via   the
             `include_directories` or the `dependency` kwarg (if present).  The same is also true
             for passing libraries to link with `-lfoo`.

           dependencies dep | list[dep]
             Additionally dependencies required for compiling and / or linking.

           include_directories inc | list[inc], since 0.38.0
             Extra directories for header searches.

           no_builtin_args bool, default: false
             When set to `true`, the compiler  arguments  controlled  by  built-in  configuration
             options are not added.

           prefix str | list[str]
             Used  to  add  `#include`s  and  other things that are required for the symbol to be
             declared. Since 1.0.0 an array is accepted too. When an array is passed,  the  items
             are  concatenated  together  separated  by  a newline.  System definitions should be
             passed via compiler args (eg: `_GNU_SOURCE` is often required for some symbols to be
             exposed on Linux, and it should be passed via `args` keyword argument).

           required bool | feature, default: false, since 1.3.0
             When  set to `true`, Meson will halt if the check fails.  When set to a `feature`[0]
             option, the feature will control if it is searched and whether to fail if not found.

   compiler.has_multi_arguments()
       SYNOPSIS
           bool compiler.has_multi_arguments(arg..., required: false)

           since 0.37.0

       DESCRIPTION
           the same as compiler.has_argument but takes multiple arguments and uses them all in  a
           single compiler invocation.

       VARARGS
           arg str, 0...N times
             The arguments to check.

       KWARGS
           required bool | feature, default: false, since 1.3.0
             When  set to `true`, Meson will halt if the check fails.  When set to a `feature`[0]
             option, the feature will control if it is searched and whether to fail if not found.

   compiler.has_multi_link_arguments()
       SYNOPSIS
           bool compiler.has_multi_link_arguments(
               arg...,
               required: false,
           )

           since 0.46.0

       DESCRIPTION
           the same as compiler.has_link_argument but takes multiple arguments and uses them  all
           in a single compiler invocation.

       VARARGS
           arg str, 0...N times
             The link arguments to check.

       KWARGS
           required bool | feature, default: false, since 1.3.0
             When  set to `true`, Meson will halt if the check fails.  When set to a `feature`[0]
             option, the feature will control if it is searched and whether to fail if not found.

   compiler.has_type()
       SYNOPSIS
           bool compiler.has_type(
               typename,
               args:,
               dependencies:,
               include_directories:,
               no_builtin_args: false,
               prefix:,
               required: false,
           )

       DESCRIPTION
           Returns `true` if the specified token is a type.

       POSARGS
           typename str, required
             The type to check.

       KWARGS
           args list[str]
             Used to pass a list of compiler arguments.  Defining include paths for  headers  not
             in  the  default  include  path  via `-Isome/path/to/header` is generally supported,
             however, usually not recommended.

             This  is   because   include   directories   can   also   be   specified   via   the
             `include_directories` or the `dependency` kwarg (if present).  The same is also true
             for passing libraries to link with `-lfoo`.

           dependencies dep | list[dep]
             Additionally dependencies required for compiling and / or linking.

           include_directories inc | list[inc], since 0.38.0
             Extra directories for header searches.

           no_builtin_args bool, default: false
             When set to `true`, the compiler  arguments  controlled  by  built-in  configuration
             options are not added.

           prefix str | list[str]
             Used  to  add  `#include`s  and  other things that are required for the symbol to be
             declared. Since 1.0.0 an array is accepted too. When an array is passed,  the  items
             are  concatenated  together  separated  by  a newline.  System definitions should be
             passed via compiler args (eg: `_GNU_SOURCE` is often required for some symbols to be
             exposed on Linux, and it should be passed via `args` keyword argument).

           required bool | feature, default: false, since 1.3.0
             When  set to `true`, Meson will halt if the check fails.  When set to a `feature`[0]
             option, the feature will control if it is searched and whether to fail if not found.

   compiler.links()
       SYNOPSIS
           bool compiler.links(
               code,
               args:,
               dependencies:,
               include_directories:,
               name:,
               no_builtin_args: false,
               required: false,
               werror: false,
           )

       DESCRIPTION
           Returns true if the code compiles and links.

           Since 0.60.0, if the `file` object's suffix  does  not  match  the  compiler  object's
           language,  the  compiler  corresponding  to  the suffix is used to compile the source,
           while the target of the `links` method is used to link the resulting object file.

       POSARGS
           code str | file, required
             The source code to check.

             If a string is passed, the code is used directly. If a file object  is  passed,  its
             content is used for the compiler check.

       KWARGS
           args list[str]
             Used  to  pass a list of compiler arguments.  Defining include paths for headers not
             in the default include path  via  `-Isome/path/to/header`  is  generally  supported,
             however, usually not recommended.

             This   is   because   include   directories   can   also   be   specified   via  the
             `include_directories` or the `dependency` kwarg (if present).  The same is also true
             for passing libraries to link with `-lfoo`.

           dependencies dep | list[dep]
             Additionally dependencies required for compiling and / or linking.

           include_directories inc | list[inc], since 0.38.0
             Extra directories for header searches.

           name str
             The  name  to  use for printing a message about the compiler check.  If this keyword
             argument is not passed, no message will be printed about the check.

           no_builtin_args bool, default: false
             When set to `true`, the compiler  arguments  controlled  by  built-in  configuration
             options are not added.

           required bool | feature, default: false, since 1.5.0
             When  set to `true`, Meson will halt if the check fails.  When set to a `feature`[0]
             option, the feature will control if it is searched and whether to fail if not found.

           werror bool, default: false, since 1.3.0
             When set to `true`, compiler warnings are treated as error.

   compiler.preprocess()
       SYNOPSIS
           list[custom_idx] compiler.preprocess(
               source...,
               compile_args:,
               dependencies:,
               depends:,
               include_directories:,
               output:,
           )

           since 0.64.0

       DESCRIPTION
           Preprocess a list of source files but do  not  compile  them.  The  preprocessor  will
           receive  the  same  arguments  (include  directories,  defines,  etc)  as  with normal
           compilation. That includes for example args added with  `add_project_arguments()`,  or
           on the command line with `-Dc_args=-DFOO`.

       VARARGS
           source str | file | custom_tgt | custom_idx | generated_list, 0...N times
             Input source to preprocess. The following types are supported:

             - Strings relative to the current source directory
             - file objects defined in any preceding build file
             - The return value of configure-time generators such as configure_file
             -   The   return   value   of   build-time   generators  such  as  custom_target  or
             generator.process

       KWARGS
           compile_args list[str]
             Extra flags to pass to the preprocessor

           dependencies dep | list[dep], since 1.1.0
             Additionally dependencies required.

           depends list[build_tgt | custom_tgt], since 1.4.0
             Specifies that this target depends on the specified target(s). These targets  should
             be built before starting to preprocess an input.

           include_directories inc | list[inc], since 0.38.0
             Extra directories for header searches.

           output str
             Template  for  name  of  preprocessed files: `@PLAINNAME@` is replaced by the source
             filename and `@BASENAME@` is replaced by the source filename without its extension.

   compiler.run()
       SYNOPSIS
           runresult compiler.run(
               code,
               args:,
               dependencies:,
               include_directories:,
               name:,
               no_builtin_args: false,
               required: false,
               werror: false,
           )

       DESCRIPTION
           Attempts to compile and execute the given code fragment.

       POSARGS
           code str | file, required
             The source code to check.

             If a string is passed, the code is used directly. If a file object  is  passed,  its
             content is used for the compiler check.

       KWARGS
           args list[str]
             Used  to  pass a list of compiler arguments.  Defining include paths for headers not
             in the default include path  via  `-Isome/path/to/header`  is  generally  supported,
             however, usually not recommended.

             This   is   because   include   directories   can   also   be   specified   via  the
             `include_directories` or the `dependency` kwarg (if present).  The same is also true
             for passing libraries to link with `-lfoo`.

           dependencies dep | list[dep]
             Additionally dependencies required for compiling and / or linking.

           include_directories inc | list[inc], since 0.38.0
             Extra directories for header searches.

           name str
             The  name  to  use for printing a message about the compiler check.  If this keyword
             argument is not passed, no message will be printed about the check.

           no_builtin_args bool, default: false
             When set to `true`, the compiler  arguments  controlled  by  built-in  configuration
             options are not added.

           required bool | feature, default: false, since 1.5.0
             When  set to `true`, Meson will halt if the check fails.  When set to a `feature`[0]
             option, the feature will control if it is searched and whether to fail if not found.

           werror bool, default: false, since 1.3.0
             When set to `true`, compiler warnings are treated as error.

   compiler.sizeof()
       SYNOPSIS
           int compiler.sizeof(
               typename,
               args:,
               dependencies:,
               include_directories:,
               no_builtin_args: false,
               prefix:,
           )

       DESCRIPTION
           returns the size of the given type (e.g. `'int'`) or -1 if the type is  unknown.   For
           C-like  languages,  the  header  `stddef.h`  and `stdio.h` are included implicitly for
           native compilation, only `stddef.h` is included when cross-compiling.

       POSARGS
           typename str, required
             The type to compute.

       KWARGS
           args list[str]
             Used to pass a list of compiler arguments.  Defining include paths for  headers  not
             in  the  default  include  path  via `-Isome/path/to/header` is generally supported,
             however, usually not recommended.

             This  is   because   include   directories   can   also   be   specified   via   the
             `include_directories` or the `dependency` kwarg (if present).  The same is also true
             for passing libraries to link with `-lfoo`.

           dependencies dep | list[dep]
             Additionally dependencies required for compiling and / or linking.

           include_directories inc | list[inc], since 0.38.0
             Extra directories for header searches.

           no_builtin_args bool, default: false
             When set to `true`, the compiler  arguments  controlled  by  built-in  configuration
             options are not added.

           prefix str | list[str]
             Used  to  add  `#include`s  and  other things that are required for the symbol to be
             declared. Since 1.0.0 an array is accepted too. When an array is passed,  the  items
             are  concatenated  together  separated  by  a newline.  System definitions should be
             passed via compiler args (eg: `_GNU_SOURCE` is often required for some symbols to be
             exposed on Linux, and it should be passed via `args` keyword argument).

   compiler.symbols_have_underscore_prefix()
       SYNOPSIS
           bool compiler.symbols_have_underscore_prefix()

           since 0.37.0

       DESCRIPTION
           Returns  `true`  if  the  C  symbol  mangling  is one underscore (`_`) prefixed to the
           symbol.

   compiler.version()
       SYNOPSIS
           str compiler.version()

       DESCRIPTION
           Returns the compiler's version number as a string.

   custom_idx.full_path()
       SYNOPSIS
           str custom_idx.full_path()

           since 0.54.0

       DESCRIPTION
           Returns a full path pointing to the result target file NOTE: In most cases  using  the
           object  itself  will do the same job as this and will also allow Meson to setup inter-
           target dependencies correctly. Please file a bug if that doesn't work for you.

           See custom_tgt.full_path

   custom_tgt.[index]()
       SYNOPSIS
           custom_idx custom_tgt.[index]()

       DESCRIPTION
           Returns an opaque object that references this target, and can be used as a  source  in
           other  targets. When it is used as such it will make that target depend on this custom
           target, but the only source added will be the one that corresponds to the index of the
           custom target's output argument.

   custom_tgt.full_path()
       SYNOPSIS
           str custom_tgt.full_path()

       DESCRIPTION
           Returns  a  full path pointing to the result target file NOTE: In most cases using the
           object itself will do the same job as this and will also allow Meson to  setup  inter-
           target dependencies correctly. Please file a bug if that doesn't work for you.  (since
           0.54.0) It can be also called on indexes objects: `custom_targets[i].full_path()`.

   custom_tgt.to_list()
       SYNOPSIS
           list[custom_idx] custom_tgt.to_list()

           since 0.54.0

       DESCRIPTION
           Returns a list of opaque objects that references this target, and can  be  used  as  a
           source in other targets. This can be used to iterate outputs with `foreach` loop.

   dep.as_link_whole()
       SYNOPSIS
           dep dep.as_link_whole()

           since 0.56.0

       DESCRIPTION
           Only  dependencies  created  with declare_dependency, returns a copy of the dependency
           object with all link_with arguments changed to link_whole. This is useful for  example
           for  fallback  dependency from a subproject built with `default_library=static`.  Note
           that all `link_with` objects must be static  libraries  otherwise  an  error  will  be
           raised when trying to `link_whole` a shared library.

   dep.as_system()
       SYNOPSIS
           dep dep.as_system([value])

           since 0.52.0

       DESCRIPTION
           Returns a copy of the dependency object, which has changed the value of `include_type`
           to `value`. The `value` argument is optional and defaults to `'system'`.

       OPTARGS
           value str
             The new value. See dependency for supported values.

   dep.found()
       SYNOPSIS
           bool dep.found()

       DESCRIPTION
           Returns whether the dependency was found.

   dep.get_configtool_variable()
       SYNOPSIS
           str dep.get_configtool_variable(var_name)

           deprecated since 0.56.0, since 0.44.0

       DESCRIPTION
           Gets the command line argument from the config tool  (with  `--`  prepended),  or,  if
           invoked on a non config-tool dependency, error out.

       POSARGS
           var_name str, required
             Name of the variable to query

   dep.get_pkgconfig_variable()
       SYNOPSIS
           str dep.get_pkgconfig_variable(
               var_name,
               default:,
               define_variable:,
           )

           deprecated since 0.56.0, since 0.36.0

       DESCRIPTION
           Gets the pkg-config variable specified, or, if invoked on a non pkg-config dependency,
           error out.

       POSARGS
           var_name str, required
             Name of the variable to query

       KWARGS
           default str, since 0.45.0
             The value to return if the variable was not found.   A  warning  is  issued  if  the
             variable is not defined and this kwarg is not set.

           define_variable list[str], since 0.44.0
             You can also redefine a variable by passing a list to this kwarg that can affect the
             retrieved variable: `['prefix', '/'])`.

             (Since 1.3.0) Multiple variables can be specified in pairs.

   dep.get_variable()
       SYNOPSIS
           str dep.get_variable(
               [varname],
               cmake:,
               configtool:,
               default_value:,
               internal:,
               pkgconfig:,
               pkgconfig_define:,
           )

           since 0.51.0

       DESCRIPTION
           A generic variable getter method, which replaces the `get_type_variable` methods. This
           allows one to get the variable from a dependency without knowing specifically how that
           dependency was found. If `default_value` is set and the value cannot  be  gotten  from
           the object then `default_value` is returned, if it is not set then an error is raised.

       OPTARGS
           varname str, since 0.58.0
             This  argument is used as a default value for `cmake`, `pkgconfig`, `configtool` and
             `internal` keyword arguments. It is useful in the common case where `pkgconfig`  and
             `internal`  use  the  same  variable  name,  in  which  case  it's  easier  to write
             `dep.get_variable('foo')` instead of `dep.get_variable(pkgconfig:  'foo',  internal:
             'foo')`.

       KWARGS
           cmake str
             The CMake variable name

           configtool str
             The configtool variable name

           default_value str
             The default value to return when the variable does not exist

           internal str, since 0.54.0
             The internal variable name

           pkgconfig str
             The pkgconfig variable name

           pkgconfig_define list[str]
             See dep.get_pkgconfig_variable

       WARNINGS
           Before  1.3.0,  specifying  multiple pkgconfig_define pairs would silently malform the
           results. Only the first variable would be redefined, but its value would contain  both
           the second variable name, as well as its value.

   dep.include_type()
       SYNOPSIS
           str dep.include_type()

           since 0.52.0

       DESCRIPTION
           Returns the value set by the `include_type` kwarg.

   dep.name()
       SYNOPSIS
           str dep.name()

           since 0.48.0

       DESCRIPTION
           Returns  the  name  of  the  dependency  that  was searched.  Returns `'internal'` for
           dependencies created with declare_dependency.

           NOTE: This was not implemented for dep objects returned by compiler.find_library until
           Meson 1.5.0

   dep.partial_dependency()
       SYNOPSIS
           dep dep.partial_dependency(
               compile_args: false,
               includes: false,
               link_args: false,
               links: false,
               sources: false,
           )

           since 0.46.0

       DESCRIPTION
           Returns  a new dependency object with the same name, version, found status, type name,
           and methods as the object that called it. This new  object  will  only  inherit  other
           attributes from its parent as controlled by keyword arguments.

           If  the  parent  has  any  dependencies,  those  will  be  applied  to the new partial
           dependency with the same rules. So, given:
               dep1 = declare_dependency(compile_args : '-Werror=foo', link_with : 'libfoo')
               dep2 = declare_dependency(compile_args : '-Werror=bar', dependencies : dep1)
               dep3 = dep2.partial_dependency(compile_args : true)
           dep3 will add `['-Werror=foo', '-Werror=bar']` to the compiler args of any  target  it
           is added to, but libfoo will not be added to the link_args.

           The following arguments will add the following attributes:

           - compile_args: any arguments passed to the compiler
           - link_args: any arguments passed to the linker
           - links: anything passed via link_with or link_whole
           - includes: any include_directories
           - sources: any compiled or static sources the dependency has

       KWARGS
           compile_args bool, default: false
             Whether to include compile_args

           includes bool, default: false
             Whether to include includes

           link_args bool, default: false
             Whether to include link_args

           links bool, default: false
             Whether to include links

           sources bool, default: false
             Whether to include sources

       WARNINGS
           A bug present until 0.50.1 results in the above behavior not working correctly.

   dep.type_name()
       SYNOPSIS
           str dep.type_name()

       DESCRIPTION
           Returns  a  string  describing  the type of the dependency, the most common values are
           `internal` for  deps  created  with  declare_dependency  and  `pkgconfig`  for  system
           dependencies obtained with Pkg-config.

   dep.version()
       SYNOPSIS
           str dep.version()

       DESCRIPTION
           the  version  number  as  a  string, for example `1.2.8`.  `unknown` if the dependency
           provider doesn't support determining the version.

   dict.get()
       SYNOPSIS
           any dict.get(key, [fallback])

       DESCRIPTION
           returns the value for the key given  as  first  argument  if  it  is  present  in  the
           dictionary,  or  the optional fallback value given as the second argument. If a single
           argument was given and the key was not found, causes a fatal error

       POSARGS
           key str, required
             The key to query.

       OPTARGS
           fallback any
             Fallback value that is returned if the key is not in the dict.

   dict.has_key()
       SYNOPSIS
           bool dict.has_key(key)

       DESCRIPTION
           Returns `true`  if  the  dictionary  contains  the  key  given  as  argument,  `false`
           otherwise.

       POSARGS
           key str, required
             The key to query.

   dict.keys()
       SYNOPSIS
           list[str] dict.keys()

       DESCRIPTION
           Returns an array of keys in the dictionary.

   disabler.found()
       SYNOPSIS
           bool disabler.found()

       DESCRIPTION
           Always returns `false`

   env.append()
       SYNOPSIS
           void env.append(variable, Value..., separator:)

       DESCRIPTION
           appends  the  given  values  to  the  old  value  of  the  environment  variable, e.g.
           `env.append('FOO', ´BAR', 'BAZ', separator : ';')` produces `BOB;BAR;BAZ` if `FOO` had
           the value `BOB` and plain `BAR;BAZ` if the value was not defined.

       POSARGS
           variable str, required
             The variable to modify

       VARARGS
           Value str, 0...N times
             The values to append

       KWARGS
           separator str
             The  separator  to  use. If not explicitly specified, the default path separator for
             the host operating system will be used, i.e. ';' for Windows and ':' for  UNIX/POSIX
             systems.

   env.prepend()
       SYNOPSIS
           void env.prepend(variable, Value..., separator:)

       DESCRIPTION
           Same as `append` except that it writes to the beginning of the variable.

       POSARGS
           variable str, required
             The variable to modify

       VARARGS
           Value str, 0...N times
             The values to prepend

       KWARGS
           separator str
             The  separator  to  use. If not explicitly specified, the default path separator for
             the host operating system will be used, i.e. ';' for Windows and ':' for  UNIX/POSIX
             systems.

   env.set()
       SYNOPSIS
           void env.set(variable, Value..., separator:)

       DESCRIPTION
           Sets  the  environment  variable  specified in the first argument to the values in the
           varargs joined by the separator. For instance, `env.set('FOO',  'BAR'),`  sets  envvar
           `FOO` to value `BAR`.

       POSARGS
           variable str, required
             The variable to modify

       VARARGS
           Value str, 0...N times
             The values to set

       KWARGS
           separator str
             The  separator  to  use. If not explicitly specified, the default path separator for
             the host operating system will be used, i.e. ';' for Windows and ':' for  UNIX/POSIX
             systems.

   env.unset()
       SYNOPSIS
           void env.unset()

           since 1.4.0

       DESCRIPTION
           Unset  the  specified  environment  variable. If this variable does not exist, nothing
           happens.

   external_program.found()
       SYNOPSIS
           bool external_program.found()

       DESCRIPTION
           Returns whether the executable was found.

   external_program.full_path()
       SYNOPSIS
           str external_program.full_path()

           since 0.55.0

       DESCRIPTION
           Returns a string pointing to the script or executable.

           NOTE: You should not usually need to use this method. Passing the object itself should
           work  in  most  contexts  where a program can appear, and allows Meson to setup inter-
           target dependencies  correctly  (for  example  in  cases  where  a  program  might  be
           overridden  by a build_tgt).  Only use this if you specifically need a string, such as
           when embedding a program path into a header file, or storing it  into  an  environment
           variable.

           For example:
               run_command(find_program('foo'), 'arg1', 'arg2')

   external_program.path()
       SYNOPSIS
           str external_program.path()

           deprecated since 0.55.0

       DESCRIPTION
           Deprecated: Use external_program.full_path instead.

           Returns a string pointing to the script or executable.

           NOTE: You should not usually need to use this method. Passing the object itself should
           work in most contexts where a program can appear, and allows  Meson  to  setup  inter-
           target  dependencies  correctly  (for  example  in  cases  where  a  program  might be
           overridden by a build_tgt).  Only use this if you specifically need a string, such  as
           when  embedding  a  program path into a header file, or storing it into an environment
           variable.

           For example:
               run_command(find_program('foo'), 'arg1', 'arg2')

   external_program.version()
       SYNOPSIS
           str external_program.version()

           since 0.62.0

       DESCRIPTION
           The version number as a string, for example `1.2.8`.

           `unknown` if the program cannot determine the version via a `--version` argument.

   feature.allowed()
       SYNOPSIS
           bool feature.allowed()

           since 0.59.0

       DESCRIPTION
           Returns whether the feature was set to `'enabled'` or `'auto'`

   feature.auto()
       SYNOPSIS
           bool feature.auto()

       DESCRIPTION
           Returns whether the feature was set to `'auto'`

   feature.disable_auto_if()
       SYNOPSIS
           feature feature.disable_auto_if(value)

           since 0.59.0

       DESCRIPTION
           Returns the feature, with `'auto'` converted to `'disabled'` if value is true.

           | Feature  | `value = true` |  `value  =  false`  |  |  --------  |  --------------  |
           --------------- | | Auto     | Disabled       | Auto            | | Enabled  | Enabled
           | Enabled         | | Disabled | Disabled       | Disabled        |

       POSARGS
           value bool, required
             See the table above

       EXAMPLE
           `disable_auto_if` is useful to give  precedence  to  mutually  exclusive  dependencies
           (that provide the same API) if either or both are available:
               # '-Dfoo=auto -Dbar=enabled' will not pick foo even if installed.
               use_bar = get_option('bar')
               use_foo = get_option('foo').disable_auto_if(use_bar.enabled())
               dep_foo = dependency('foo', required: use_foo)
               if not dep_foo.found()
                 dep_foo = dependency('bar', required: use_bar)
               endif

   feature.disable_if()
       SYNOPSIS
           feature feature.disable_if(value, error_message: '')

           since 1.1.0

       DESCRIPTION
           Returns the object itself if the value is false; an error if the object is `'enabled'`
           and the value is true; a disabled feature if the object is  `'auto'`  or  `'disabled'`
           and the value is true.

           |  Feature   |  `value  =  true`  |  `value  =  false` | | -------- | -------------- |
           --------------- | | Auto     | Disabled       | Auto            | | Enabled   |  Error
           | Enabled         | | Disabled | Disabled       | Disabled        |

           This  is  equivalent to `feature_opt.require(not condition)`, but may make code easier
           to reason about, especially when mixed with `enable_if`

       POSARGS
           value bool, required
             The value to check

       KWARGS
           error_message str, default: ''
             The error message to print if the check fails

       EXAMPLE
           `disable_if`  is  useful  to  restrict  the  applicability   of   `'auto'`   features,
           particularly when passing them to dependency:
               use_os_feature = get_option('foo') .br
                 .disable_if(host_machine.system()  ==  'darwin', error_message : 'os feature not
               supported on MacOS')
               dep_os_feature = dependency('os_feature', required: use_os_feature)

   feature.disabled()
       SYNOPSIS
           bool feature.disabled()

       DESCRIPTION
           Returns whether the feature was set to `'disabled'`

   feature.enable_auto_if()
       SYNOPSIS
           feature feature.enable_auto_if(value)

           since 1.1.0

       DESCRIPTION
           Returns the feature, with `'auto'` converted to `'enabled'` if value is true.

           | Feature  | `value = true` |  `value  =  false`  |  |  --------  |  --------------  |
           --------------- | | Auto     | Enabled        | Auto            | | Enabled  | Enabled
           | Enabled         | | Disabled | Disabled       | Disabled        |

       POSARGS
           value bool, required
             See the table above

   feature.enable_if()
       SYNOPSIS
           feature feature.enable_if(value, error_message: '')

           since 1.1.0

       DESCRIPTION
           Returns the object  itself  if  the  value  is  false;  an  error  if  the  object  is
           `'disabled'`  and  the  value is true; an enabled feature if the object is `'auto'` or
           `'enabled'` and the value is true.

           | Feature  | `value = true` |  `value  =  false`  |  |  --------  |  --------------  |
           --------------- | | Auto     | Enabled        | Auto            | | Enabled  | Enabled
           | Enabled         | | Disabled | Error          | Disabled        |

       POSARGS
           value bool, required
             The value to check

       KWARGS
           error_message str, default: ''
             The error message to print if the check fails

       EXAMPLE
           `enable_if` is useful to restrict the applicability of `'auto'` features, particularly
           when passing them to dependency:
               use_llvm = get_option('llvm').enable_if(with_clang).enable_if(with_llvm_libs)
               dep_llvm = dependency('llvm', required: use_llvm)

   feature.enabled()
       SYNOPSIS
           bool feature.enabled()

       DESCRIPTION
           Returns whether the feature was set to `'enabled'`

   feature.require()
       SYNOPSIS
           feature feature.require(value, error_message: '')

           since 0.59.0

       DESCRIPTION
           Returns  the object itself if the value is true; an error if the object is `'enabled'`
           and the value is false; a disabled feature if the object is `'auto'`  or  `'disabled'`
           and the value is false.

           |  Feature   |  `value  =  true`  |  `value  =  false` | | -------- | -------------- |
           --------------- | | Auto     | Auto           | Disabled        | | Enabled  | Enabled
           | Error           | | Disabled | Disabled       | Disabled        |

       POSARGS
           value bool, required
             The value to check

       KWARGS
           error_message str, default: ''
             The error message to print if the check fails

       EXAMPLE
           `require`  is  useful  to restrict the applicability of `'auto'` features, for example
           based on other features or on properties of the host machine:
               if get_option('directx').require(host_machine.system() == 'windows',
                     error_message: 'DirectX only available on Windows').allowed() then
                 src += ['directx.c']
                 config.set10('HAVE_DIRECTX', true)
               endif

   file.full_path()
       SYNOPSIS
           str file.full_path()

           since 1.4.0

       DESCRIPTION
           Returns a full path pointing to the file. This is useful for printing  the  path  with
           e.g  message  function  for  debugging  purpose.  NOTE: In most cases using the object
           itself will do the same job as this and will also allow Meson  to  setup  dependencies
           correctly.

   generator.process()
       SYNOPSIS
           generated_list generator.process(
               source...,
               env:,
               extra_args:,
               preserve_path_from:,
           )

       DESCRIPTION
           Takes  a  list  of files, causes them to be processed and returns an object containing
           the result which can then, for example, be passed into a build target definition.

       VARARGS
           source str | file | custom_tgt | custom_idx | generated_list, 1...N times
             List of sources to process.

       KWARGS
           env env | list[str] | dict[str], since 1.3.0
             environment variables to set, such as `{'NAME1': 'value1',  'NAME2':  'value2'}`  or
             `['NAME1=value1', 'NAME2=value2']`, or an env object which allows more sophisticated
             environment juggling.

           extra_args list[str]
             If present, will be used to replace an entry `@EXTRA_ARGS@` in the argument list.

           preserve_path_from str, since 0.45.0
             If given, specifies that the output files need to maintain their directory structure
             inside   the  target  temporary  directory.  The  most  common  value  for  this  is
             `meson.current_source_dir()`. With this value when a file called  `subdir/one.input`
             is  processed  it  generates  a  file `{target private directory}/subdir/one.out` as
             opposed to `{target private directory}/one.out`.

   int.is_even()
       SYNOPSIS
           bool int.is_even()

       DESCRIPTION
           Returns true if the number is even.

   int.is_odd()
       SYNOPSIS
           bool int.is_odd()

       DESCRIPTION
           Returns true if the number is odd

   int.to_string()
       SYNOPSIS
           str int.to_string([fill])

       DESCRIPTION
           Returns the value of the number as a string.

       OPTARGS
           fill int
             Left fill the string with zeros until  it  reaches  the  length  specified  by  this
             argument.  A  leading  negative  sign  counts  towards the length, and is handled by
             inserting the padding after the `-`  character  rather  than  before.  The  original
             string  is  returned  if  the  value  provided is less than or equal to the former's
             length.

   list.contains()
       SYNOPSIS
           bool list.contains(item)

       DESCRIPTION
           Returns `true` if the array contains the object given as argument, `false` otherwise

       POSARGS
           item any, required
             The item to check

   list.get()
       SYNOPSIS
           any list.get(index, [fallback])

       DESCRIPTION
           returns the object at the given index, negative indices count from  the  back  of  the
           array, indexing out of bounds returns the `fallback` value (since 0.38.0) or, if it is
           not specified, causes a fatal error

       POSARGS
           index int, required
             Index of the list position to query. Negative values start at the end of the list

       OPTARGS
           fallback any
             Fallback value that is returned if the index is out of range.

   list.length()
       SYNOPSIS
           int list.length()

       DESCRIPTION
           Returns the current size of the array / list.

   meson.add_devenv()
       SYNOPSIS
           void meson.add_devenv(env, method:, separator:)

           since 0.58.0

       DESCRIPTION
           add an env object (returned by environment) to the list of environments that  will  be
           applied when using `meson devenv`[34] command line.

           This is useful for developers who wish to use the project without installing it, it is
           often needed to set for example the path to plugins directory, etc.  Alternatively,  a
           list or dictionary can be passed as first argument.
               devenv = environment()
               devenv.set('PLUGINS_PATH', meson.current_build_dir())
               meson.add_devenv(devenv)
           After  configuring  and  compiling  that  project,  a  terminal can be opened with the
           environment set:
               sh
               $ meson devenv -C <builddir>
               $ echo $PLUGINS_PATH
               /path/to/source/subdir
           See `meson devenv`[33] command documentation for a list of environment variables  that
           are set by default by Meson.

       POSARGS
           env env | str | list[str] | dict[str] | dict[list[str]], required
             The  env  object  to  add.   Since  0.62.0  list of strings is allowed in dictionary
             values. In that case values are joined using the separator.

       KWARGS
           method str, since 0.62.0
             Must be one of 'set', 'prepend',  or  'append'  (defaults  to  'set').  Controls  if
             initial  values  defined in the first positional argument are prepended, appended or
             replace the current value of the environment variable.

           separator str, since 0.62.0
             The separator to use  for  the  initial  values  defined  in  the  first  positional
             argument.  If  not  explicitly  specified,  the  default path separator for the host
             operating system will be used, i.e. ';' for Windows and ':' for UNIX/POSIX systems.

   meson.add_dist_script()
       SYNOPSIS
           void meson.add_dist_script(script_name, arg...)

           since 0.48.0

       DESCRIPTION
           Causes the script  given  as  argument  to  run  during  `dist`  operation  after  the
           distribution  source has been generated but before it is archived. Note that this runs
           the script file that is in  the  _staging_  directory,  not  the  one  in  the  source
           directory.  If  the script file cannot be found in the staging directory, it is a hard
           error. The `MESON_DIST_ROOT` environment variables is set when dist scripts is run.

           (since 0.54.0) The `MESON_SOURCE_ROOT` and  `MESON_BUILD_ROOT`  environment  variables
           are  set  when  dist  scripts  are  run.  They  are  path to the root source and build
           directory of the main project, even when the script comes from a subproject.

           (since 0.58.0) This command can be invoked from a subproject, it was a hard  error  in
           earlier  versions.  Subproject  dist scripts will only be executed when running `meson
           dist --include-subprojects`.  `MESON_PROJECT_SOURCE_ROOT`,  `MESON_PROJECT_BUILD_ROOT`
           and `MESON_PROJECT_DIST_ROOT` environment variables are set when dist scripts are run.
           They are identical to `MESON_SOURCE_ROOT`,  `MESON_BUILD_ROOT`  and  `MESON_DIST_ROOT`
           for main project scripts, but for subproject scripts they have the path to the root of
           the subproject appended, usually `subprojects/<subproject-name>`.

           (since 1.4.0) The `MESONREWRITE` environment variable contains the path to the rewrite
           command  that  corresponds  to  the  `meson` executable that was used to configure the
           build. (This might be a different path than the first executable found in `PATH`.)  It
           can  be used to remove or replace any run_command that depends on the revision control
           system from the build configuration. Note that the value will contain many parts.  For
           example, it may be `python3 /path/to/meson.py introspect`. The user is responsible for
           splitting the string to an array if needed by splitting lexically like  a  UNIX  shell
           would.  If  your  script uses Python, `shlex.split()` is the easiest correct way to do
           this.

       POSARGS
           script_name str | file | external_program, required
             The script to execute.

             (since 0.55.0) The output of find_program as well as strings are accepted.

             (since 0.57.0) file objects and the output of configure_file may be used.

       VARARGS
           arg str | file | external_program, 0...N times, since 0.49.0
             Additional arguments

             (since 0.55.0) The output of configure_file, files,  and  find_program  as  well  as
             strings are accepted.

   meson.add_install_script()
       SYNOPSIS
           void meson.add_install_script(
               script_name,
               arg...,
               dry_run: false,
               install_tag:,
               skip_if_destdir: false,
           )

       DESCRIPTION
           Causes  the script given as an argument to be run during the install step, this script
           will  have  the   environment   variables   `MESON_SOURCE_ROOT`,   `MESON_BUILD_ROOT`,
           `MESON_INSTALL_PREFIX`,  `MESON_INSTALL_DESTDIR_PREFIX`,  and  `MESONINTROSPECT`  set.
           All positional arguments are passed as parameters.

           (since 0.54.0) If `meson install` is called with the `--quiet` option, the environment
           variable `MESON_INSTALL_QUIET` will be set.

           (since  1.1.0)  If  `meson  install`  is  called  with  the  `--dry-run`  option,  the
           environment variable `MESON_INSTALL_DRY_RUN` will be set.

           Meson uses the `DESTDIR` environment variable as set by the inherited  environment  to
           determine the (temporary) installation location for files. Your install script must be
           aware of this while manipulating and installing files. The correct way to handle  this
           is  with  the `MESON_INSTALL_DESTDIR_PREFIX` variable which is always set and contains
           `DESTDIR` (if set) and `prefix` joined together.  This  is  useful  because  both  are
           usually  absolute  paths  and  there  are  platform-specific edge-cases in joining two
           absolute paths.

           In case it is needed, `MESON_INSTALL_PREFIX` is also always set and has the  value  of
           the `prefix` option passed to Meson.

           `MESONINTROSPECT`  contains the path to the introspect command that corresponds to the
           `meson` executable that was used to configure the build. (This might  be  a  different
           path  than  the  first  executable  found  in  `PATH`.)  It can be used to query build
           configuration. Note that the value will contain many parts, f.ex., it may be  `python3
           /path/to/meson.py  introspect`. The user is responsible for splitting the string to an
           array if needed by splitting lexically like a UNIX shell would. If  your  script  uses
           Python, `shlex.split()` is the easiest correct way to do this.

       POSARGS
           script_name str | file | external_program | exe, required
             The script to execute.

             (since  0.55.0)  The  output  of find_program, executable, custom_target, as well as
             strings are accepted.

             (since 0.57.0) file objects and the output of configure_file may be used.

       VARARGS
           arg str | file | external_program | exe | custom_tgt | custom_idx, 0...N times,  since
           0.49.0
             Additional arguments

             (since  0.55.0)  The  output  of find_program, executable, custom_target, as well as
             strings are accepted.

       KWARGS
           dry_run bool, default: false, since 1.1.0
             If `true` the script will be run even if  `--dry-run`  option  is  provided  to  the
             `meson  install` command. The script can use the `MESON_INSTALL_DRY_RUN` variable to
             determine if it is in dry run mode or not.

           install_tag str, since 0.60.0
             A string used by the `meson install --tags` command to install only a subset of  the
             files.   By  default  the  script has no install tag which means it is not being run
             when `meson install --tags` argument is specified.

           skip_if_destdir bool, default: false, since 0.57.0
             If `true` the script will not be run if DESTDIR is set during installation.  This is
             useful  in  the  case  the script updates system wide cache that is only needed when
             copying files into final destination.

   meson.add_postconf_script()
       SYNOPSIS
           void meson.add_postconf_script(script_name, arg...)

       DESCRIPTION
           Runs the given command after all project files have been generated.  This script  will
           have the environment variables `MESON_SOURCE_ROOT` and `MESON_BUILD_ROOT` set.

       POSARGS
           script_name str | file | external_program, required
             The script to execute.

             (since 0.55.0) The output of find_program as well as strings are accepted.

             (since 0.57.0) file objects and the output of configure_file may be used.

       VARARGS
           arg str | file | external_program, 0...N times, since 0.49.0
             Additional arguments

             (since  0.55.0)  The  output  of  configure_file, files, and find_program as well as
             strings are accepted.

   meson.backend()
       SYNOPSIS
           str meson.backend()

           since 0.37.0

       DESCRIPTION
           Returns a string representing the current backend:

           - `ninja`
           - `vs2010`
           - `vs2012`
           - `vs2013`
           - `vs2015`
           - `vs2017`
           - `vs2019`
           - `vs2022`
           - `xcode`

   meson.build_options()
       SYNOPSIS
           str meson.build_options()

           since 1.1.0

       DESCRIPTION
           Returns a string with the configuration line used to set the current project up.

       NOTES
           Do not try to parse this string!

           You should use cfg_data.set_quoted to safely  escape  any  embedded  quotes  prior  to
           storing it into e.g. a C header macro.

           The  contents  returned  by  this  function  are the same as the "Build Options:" line
           reported in `<builddir>/meson-logs/meson-log.txt`.

   meson.build_root()
       SYNOPSIS
           str meson.build_root()

           deprecated since 0.56.0

       DESCRIPTION
           Returns a string with the absolute path to the build root  directory.   This  function
           will return the build root of the parent project if called from a subproject, which is
           usually   not    what    you    want.    Try    using    meson.current_build_dir    or
           meson.project_build_root.   In  the  rare  cases where the root of the main project is
           needed, use meson.global_build_root that has  the  same  behaviour  but  with  a  more
           explicit name.

   meson.can_run_host_binaries()
       SYNOPSIS
           bool meson.can_run_host_binaries()

           since 0.55.0

       DESCRIPTION
           Returns  true  if  the  build  machine  can  run binaries compiled for the host.  This
           returns `true` unless you are cross compiling, need a helper to run host binaries, and
           don't  have  one.  For example when cross compiling from Linux to Windows, one can use
           `wine` as the helper.

   meson.current_build_dir()
       SYNOPSIS
           str meson.current_build_dir()

       DESCRIPTION
           Returns a string with the absolute path to the current build directory.

   meson.current_source_dir()
       SYNOPSIS
           str meson.current_source_dir()

       DESCRIPTION
           Returns a string to the current source directory.

       NOTES
           You do not need to use this function!

           When passing files from the current source directory to a function since that  is  the
           default.  Also, you can use the files function to refer to files in the current or any
           other   source   directory   instead   of    constructing    paths    manually    with
           meson.current_source_dir.

   meson.get_compiler()
       SYNOPSIS
           compiler meson.get_compiler(language, native: false)

       DESCRIPTION
           Returns a compiler object describing a compiler.

       POSARGS
           language str, required
             The language of the compiler to return.

             See our list of supported languages[35].

       KWARGS
           native bool, default: false
             When  set  to  `true` Meson returns the compiler for the build machine (the "native"
             compiler) and when `false` it returns the host compiler (the "cross"  compiler).  If
             `native`  is  omitted,  Meson returns the "cross" compiler if we're currently cross-
             compiling and the "native" compiler if we're not.

   meson.get_cross_property()
       SYNOPSIS
           any meson.get_cross_property(propname, [fallback_value])

           deprecated since 0.58.0

       DESCRIPTION
           Returns the given property from a cross file, the optional fallback_value is  returned
           if not cross compiling or the given property is not found.

           This method is replaced by meson.get_external_property.

       POSARGS
           propname str, required
             Name of the property in the cross / native file.

       OPTARGS
           fallback_value any
             Value to return if `propname` is not set in the machine file.

   meson.get_external_property()
       SYNOPSIS
           any meson.get_external_property(
               propname,
               [fallback_value],
               native:,
           )

           since 0.54.0

       DESCRIPTION
           Returns  the  given property from a native or cross file.  The optional fallback_value
           is returned if the given property is not found.

       POSARGS
           propname str, required
             Name of the property in the cross / native file.

       OPTARGS
           fallback_value any
             Value to return if `propname` is not set in the machine file.

       KWARGS
           native bool
             Setting `native` to `true` forces retrieving a variable from the native  file,  even
             when  cross-compiling.   If  `native:  false`  or  not  specified,  the  variable is
             retrieved from the cross-file if cross-compiling, and from the native-file when  not
             cross-compiling.

   meson.global_build_root()
       SYNOPSIS
           str meson.global_build_root()

           since 0.58.0

       DESCRIPTION
           Returns  a  string  with the absolute path to the build root directory.  This function
           will return the build root of the main project if called from a subproject,  which  is
           usually not what you want.  It is usually preferable to use meson.current_build_dir or
           meson.project_build_root.

   meson.global_source_root()
       SYNOPSIS
           str meson.global_source_root()

           since 0.58.0

       DESCRIPTION
           Returns a string with the absolute path to the source root directory.   This  function
           will  return the source root of the main project if called from a subproject, which is
           usually not what you want.  It is usually preferable to  use  meson.current_source_dir
           or meson.project_source_root.

   meson.has_exe_wrapper()
       SYNOPSIS
           bool meson.has_exe_wrapper()

           deprecated since 0.55.0

       DESCRIPTION
           Use meson.can_run_host_binaries instead.

   meson.has_external_property()
       SYNOPSIS
           bool meson.has_external_property(propname, native:)

           since 0.58.0

       DESCRIPTION
           Checks whether the given property exist in a native or cross file.

       POSARGS
           propname str, required
             Name of the property in the cross / native file.

       KWARGS
           native bool
             Setting  `native`  to `true` forces retrieving a variable from the native file, even
             when cross-compiling.   If  `native:  false`  or  not  specified,  the  variable  is
             retrieved  from the cross-file if cross-compiling, and from the native-file when not
             cross-compiling.

   meson.install_dependency_manifest()
       SYNOPSIS
           void meson.install_dependency_manifest(output_name)

       DESCRIPTION
           Installs a manifest file containing a list of  all  subprojects,  their  versions  and
           license names to the file name given as the argument.

           If  license  files  are  defined as well, they will be copied next to the manifest and
           referenced in it.

           If this function is not used, the builtin option `licensedir` can be used  to  install
           the manifest to a given directory with the name `depmf.json`.

       POSARGS
           output_name str, required
             Name of the manifest file to install

   meson.is_cross_build()
       SYNOPSIS
           bool meson.is_cross_build()

       DESCRIPTION
           Returns `true` if the current build is a cross build[36] and `false` otherwise.

   meson.is_subproject()
       SYNOPSIS
           bool meson.is_subproject()

       DESCRIPTION
           Returns  `true`  if  the  current project is being built as a subproject of some other
           project and `false` otherwise.

   meson.is_unity()
       SYNOPSIS
           bool meson.is_unity()

       DESCRIPTION
           Returns `true` when doing a unity build[37]  (multiple  sources  are  combined  before
           compilation to reduce build time) and `false` otherwise.

   meson.override_dependency()
       SYNOPSIS
           void meson.override_dependency(
               name,
               dep_object,
               native: false,
               static:,
           )

           since 0.54.0

       DESCRIPTION
           Specifies that whenever dependency with `name` is used, Meson should not look it up on
           the system but instead  return  `dep_object`,  which  may  either  be  the  result  of
           dependency or declare_dependency.

           Doing  this  in  a  subproject  allows  the  parent project to retrieve the dependency
           without having to know the dependency  variable  name:  `dependency(name,  fallback  :
           subproject_name)`.

       POSARGS
           name str, required
             The name of the dependency to override.

           dep_object dep, required
             The dependency to set as the override for `name`.

       KWARGS
           native bool, default: false
             If  set  to  `true`,  the  dependency  is  always overwritten for the build machine.
             Otherwise, the dependency is overwritten for the host machine,  which  differs  from
             the build machine when cross-compiling.

           static bool, since 0.60.0
             Used  to override static and/or shared dependencies separately.  If not specified it
             is assumed `dep_object` follows `default_library` option value.

   meson.override_find_program()
       SYNOPSIS
           void meson.override_find_program(progname, program)

           since 0.46.0

       DESCRIPTION
           specifies that whenever find_program is used to find a program named `progname`, Meson
           should  not look it up on the system but instead return `program`, which may either be
           the result of find_program, configure_file or executable.

           (since 0.55.0) If a version check is passed to find_program for  a  program  that  has
           been overridden with an executable, the current project version is used.

       POSARGS
           progname str, required
             The name of the program to override.

           program exe | file | external_program, required
             The program to set as the override for `progname`.

   meson.project_build_root()
       SYNOPSIS
           str meson.project_build_root()

           since 0.56.0

       DESCRIPTION
           Returns  a  string  with  the absolute path to the build root directory of the current
           (sub)project.

   meson.project_license()
       SYNOPSIS
           list[str] meson.project_license()

           since 0.45.0

       DESCRIPTION
           Returns the array of licenses specified in project function call.

   meson.project_license_files()
       SYNOPSIS
           list[file] meson.project_license_files()

           since 1.1.0

       DESCRIPTION
           Returns the array of license files specified in the project function call.

   meson.project_name()
       SYNOPSIS
           str meson.project_name()

       DESCRIPTION
           Returns the project name specified in the project function call.

   meson.project_source_root()
       SYNOPSIS
           str meson.project_source_root()

           since 0.56.0

       DESCRIPTION
           Returns a string with the absolute path to the source root directory  of  the  current
           (sub)project.

   meson.project_version()
       SYNOPSIS
           str meson.project_version()

       DESCRIPTION
           Returns the version string specified in project function call.

   meson.source_root()
       SYNOPSIS
           str meson.source_root()

           deprecated since 0.56.0

       DESCRIPTION
           Returns a string with the absolute path to the source root directory.

           This  function  will  return  the  source  root of the parent project if called from a
           subproject, which is usually not what you want.  Try using meson.current_source_dir or
           meson.project_source_root.   In  the  rare cases where the root of the main project is
           needed, use meson.global_source_root that has the  same  behaviour  but  with  a  more
           explicit name.

       NOTES
           You  should  use  the  files  function  to refer to files in the root source directory
           instead of constructing paths manually with meson.source_root.

   meson.version()
       SYNOPSIS
           str meson.version()

       DESCRIPTION
           Return a string with the version of Meson.

   module.found()
       SYNOPSIS
           bool module.found()

           since 0.59.0

       DESCRIPTION
           Returns `true` if the module was successfully imported, otherwise `false`.

   runresult.compiled()
       SYNOPSIS
           bool runresult.compiled()

       DESCRIPTION
           If `true`, the compilation succeeded, if `false` it did  not  and  the  other  methods
           return unspecified data. This is only available for `compiler.run()` results.

   runresult.returncode()
       SYNOPSIS
           int runresult.returncode()

       DESCRIPTION
           The return code of executing the compiled binary

   runresult.stderr()
       SYNOPSIS
           str runresult.stderr()

       DESCRIPTION
           The standard error produced when the command was run.

   runresult.stdout()
       SYNOPSIS
           str runresult.stdout()

       DESCRIPTION
           The standard out produced when the command was run.

   str.contains()
       SYNOPSIS
           bool str.contains(fragment)

       DESCRIPTION
           Returns `true` if string contains the string specified as the argument.

       POSARGS
           fragment str, required
             The string fragment to check

       EXAMPLE

               target = 'x86_FreeBSD'
               is_fbsd = target.to_lower().contains('freebsd')
               # is_fbsd now has the boolean value 'true'

   str.endswith()
       SYNOPSIS
           bool str.endswith(fragment)

       DESCRIPTION
           Returns true if string ends with the string specified as the argument.

       POSARGS
           fragment str, required
             The string fragment to check

       EXAMPLE

               target = 'x86_FreeBSD'
               is_bsd = target.to_lower().endswith('bsd') # boolean value 'true'

   str.format()
       SYNOPSIS
           str str.format(fmt, value...)

       DESCRIPTION
           Strings can be built using the string formatting functionality.

           See the Meson syntax entry[38] for more information.

           Since  1.3.0  values  other  than  strings, integers, bools, options, dictionaries and
           lists  thereof  are  deprecated.  They   were   previously   printing   the   internal
           representation of the raw Python object.

       POSARGS
           fmt str, required
             The string to format.

             The  formatting  works  by  replacing  placeholders  of  type  `@number@`  with  the
             corresponding varargs.

       VARARGS
           value int | bool | str, 0...N times
             The values to replace the @number@ placeholders in the format string.

       EXAMPLE

               template = 'string: @0@, number: @1@, bool: @2@'
               res = template.format('text', 1, true)
               # res now has value 'string: text, number: 1, bool: true'

   str.join()
       SYNOPSIS
           str str.join(strings...)

       DESCRIPTION
           The opposite of split, for example `'.'.join(['a', 'b', 'c']` yields `'a.b.c'`.

       VARARGS
           strings str, 0...N times, since 0.60.0
             The strings to join with the current string.

             Before Meson 0.60.0 this function only accepts a single positional argument  of  the
             type list[str].

       EXAMPLE

               # Similar to the Python str.join()
               output = ' '.join(['foo', 'bar'])
               # Output value is 'foo bar'
               pathsep = ':'
               path = pathsep.join(['/usr/bin', '/bin', '/usr/local/bin'])
               # path now has the value '/usr/bin:/bin:/usr/local/bin'

   str.replace()
       SYNOPSIS
           str str.replace(old, new)

           since 0.58.0

       DESCRIPTION
           Search all occurrences of `old` and replace it with `new`

       POSARGS
           old str, required
             The substring to search

           new str, required
             The replacement string

       EXAMPLE

               # Replaces all instances of one substring with another
               s = 'semicolons;as;separators'
               s = s.replace('as', 'are')
               # 's' now has the value of 'semicolons;are;separators'

   str.split()
       SYNOPSIS
           list[str] str.split([split_string])

       DESCRIPTION
           Splits  the  string  at the specified character (or whitespace if not set) and returns
           the parts in an array.

       OPTARGS
           split_string str
             Specifies the character / substring where to split the string.

       EXAMPLE

               # Similar to the Python str.split()
               components = 'a b   c d '.split()
               # components now has the value ['a', 'b', 'c', 'd']
               components = 'a b   c d '.split(' ')
               # components now has the value ['a', 'b', '', '', 'c', 'd', '']

   str.splitlines()
       SYNOPSIS
           list[str] str.splitlines()

           since 1.2.0

       DESCRIPTION
           Splits the string into an  array  of  lin0sare alliconsidered(newlines.  empty  string
           produced  an  empty  array,  and i' and 'tring ends in a newline, splitlines() doesn't
           split on that last newline.  ´0, '

       EXAMPLE

               output = 'hello0orld0.splitlines()
               # Output value is ['hello', 'world']
               output = ''.splitlines()
               # Output value is []
               fs = import('fs')
               paths = fs.read('my_paths.list').splitlines()
               # paths is now the paths listed in 'my_paths.list', or an empty list
               # if 'my_paths.list' is empty

   str.startswith()
       SYNOPSIS
           bool str.startswith(fragment)

       DESCRIPTION
           Returns true if string starts with the string specified as the argument.

       POSARGS
           fragment str, required
             The string fragment to check

       EXAMPLE

               target = 'x86_FreeBSD'
               is_x86 = target.startswith('x86') # boolean value 'true'

   str.strip()
       SYNOPSIS
           str str.strip([strip_chars])

       DESCRIPTION
           Removes leading/ending characters from the string.

           By default the characters to remove are spaces and newlines.

       OPTARGS
           strip_chars str, since 0.43.0
             Instead of whitespace, strip all the characters in this string.

       EXAMPLE

               # Similar to the Python str.strip(). Removes leading/ending spaces and newlines
               define = ' -Dsomedefine '
               stripped_define = define.strip()
               # 'stripped_define' now has the value '-Dsomedefine'

   str.substring()
       SYNOPSIS
           str str.substring([start], [end])

           since 0.56.0

       DESCRIPTION
           Returns a substring specified from `start` to `end`.  Both `start` and `end` arguments
           are optional, so, for example, `'foobar'.substring()` will return `'foobar'`.

           The  method  accepts  negative values where negative `start` is relative to the end of
           string `len(string) - start` as well as negative `end`.

           If `start` or `end` are out of bounds, the position of the closest character  will  be
           used.  If `start` is bigger than `end`, the result will be an empty substring.

       OPTARGS
           start int
             The start position

           end int
             The end position

       EXAMPLE

               # Similar to the Python str[start:end] syntax
               target = 'x86_FreeBSD'
               platform = target.substring(0, 3) # prefix string value 'x86'
               system = target.substring(4) # suffix string value 'FreeBSD'
           Example with negative values:
               string = 'foobar'
               string.substring(-5, -3) # => 'oo'
               string.substring(1, -1) # => 'ooba'
           Example with out of bound values:
               string = 'foobar'
               string.substring(64) # => ''
               string.substring(0, 64) # => 'foobar'
               string.substring(64, 0) # => ''

   str.to_int()
       SYNOPSIS
           int str.to_int()

       DESCRIPTION
           Converts the string to an int and throws an error if it can't be

       EXAMPLE

               version = '1'
               # Converts the string to an int and throws an error if it can't be
               ver_int = version.to_int()

   str.to_lower()
       SYNOPSIS
           str str.to_lower()

       DESCRIPTION
           Converts all characters to lower case

       EXAMPLE

               target = 'x86_FreeBSD'
               lower = target.to_lower() # t now has the value 'x86_freebsd'

   str.to_upper()
       SYNOPSIS
           str str.to_upper()

       DESCRIPTION
           Converts all characters to upper case

       EXAMPLE

               target = 'x86_FreeBSD'
               upper = target.to_upper() # t now has the value 'X86_FREEBSD'

   str.underscorify()
       SYNOPSIS
           str str.underscorify()

       DESCRIPTION
           Creates  a  string  where every non-alphabetical non-number character is replaced with
           `_`.

       EXAMPLE

               name = 'Meson Docs.txt#Reference-manual'
               # Replaces all characters other than `a-zA-Z0-9` with `_` (underscore)
               # Useful for substituting into #defines, filenames, etc.
               underscored = name.underscorify()
               # underscored now has the value 'Meson_Docs_txt_Reference_manual'

   str.version_compare()
       SYNOPSIS
           bool str.version_compare(compare_string)

       DESCRIPTION
           Does semantic version comparison.

       POSARGS
           compare_string str, required
             The string to compare to.

       EXAMPLE

               version = '1.2.3'
               # Compare version numbers semantically
               is_new = version.version_compare('>=2.0')
               # is_new now has the boolean value false
               # Supports the following operators: '>', '<', '>=', '<=', '!=', '==', '='
           Meson version comparison conventions include:
               ´3.6'.version_compare('>=3.6.0') == false
           It is best to be unambiguous and specify the full revision level to compare.

   subproject.found()
       SYNOPSIS
           bool subproject.found()

           since 0.48.0

       DESCRIPTION
           Returns whether the subproject was successfully setup.

   subproject.get_variable()
       SYNOPSIS
           any subproject.get_variable(var_name, [fallback])

       DESCRIPTION
           fetches the specified variable from inside the subproject.  This  is  useful  to,  for
           instance, get a declare_dependency from the subproject[25].

           If the variable does not exist, the variable `fallback` is returned.  If a fallback is
           not specified, then attempting to read a non-existing  variable  will  cause  a  fatal
           error.

       POSARGS
           var_name str, required
             The name of the variable to query

       OPTARGS
           fallback any
             The fallback value to return if `var_name` does not exist.

OBJECTS

   alias_tgt
         extends: tgt
         returned_by: alias_target

         Opaque object returned by alias_target.

   any
         returned_by:   get_variable,   get,   get,   get_cross_property,  get_external_property,
         get_variable

         A placeholder representing all types.   This  includes  builtin,  as  well  as  returned
         objects.

   bool
         returned_by:   add_languages,   get_option,   is_disabler,   is_variable,   found,  get,
         get_unquoted,  has,  check_header,  compiles,  has_argument,  has_define,  has_function,
         has_function_attribute,  has_header,  has_header_symbol,  has_link_argument, has_member,
         has_members,    has_multi_arguments,    has_multi_link_arguments,    has_type,    links,
         symbols_have_underscore_prefix,  found,  has_key, found, found, allowed, auto, disabled,
         enabled,   is_even,   is_odd,    contains,    can_run_host_binaries,    has_exe_wrapper,
         has_external_property,   is_cross_build,   is_subproject,   is_unity,  found,  compiled,
         contains, endswith, startswith, version_compare, found

         A boolean object which is either `true` or `false`

   both_libs
         since 0.46.0
         extends: lib
         returned_by: both_libraries

         Container for both a static and shared library.

   build_machine
         extended_by: host_machine, target_machine

         Provides information about the build machine -- the machine that  is  doing  the  actual
         compilation.  See Cross-compilation[35].

         Currently,    these    values    are   populated   using   `platform.system()`[39]   and
         `platform.machine()`[40].  If you think  the  returned  values  for  any  of  these  are
         incorrect  for your system or CPU, or if your OS is not in the linked table, please file
         a bug[41] report with details and we'll look into it.

   build_tgt
         extends: tgt
         returned_by: build_target, shared_module
         extended_by: exe, jar, lib

         A build target is either an executable, shared library, static library, both shared  and
         static library or shared module.

   cfg_data
         returned_by: configuration_data

         This  object  encapsulates  configuration values to be used for generating configuration
         files. A more in-depth description can be found in the the configuration wiki page[9].

   cmake
         The CMake module

   cmake_options
         since 0.55.0
         returned_by: subproject_options

         Central configuration object for CMake subprojects

   compiler
         returned_by: get_compiler

         This object is returned by meson.get_compiler.  It represents a  compiler  for  a  given
         language and allows you to query its properties.

         NOTES
             These  compiler checks do not use compiler arguments added with `add_*_arguments()`,
             via `-Dlang_args` on the command-line, or through  `CFLAGS`/`LDFLAGS`,  etc  in  the
             environment.  Hence,  you can trust that the tests will be fully self-contained, and
             won't fail because of custom flags added by other parts of  the  build  file  or  by
             users.   Note that if you have a single prefix with all your dependencies, you might
             find it  easier  to  append  to  the  environment  variables  `C_INCLUDE_PATH`  with
             GCC/Clang  and  `INCLUDE`  with  MSVC  to  expand  the  default  include  path,  and
             `LIBRARY_PATH` with GCC/Clang and `LIB` with MSVC  to  expand  the  default  library
             search path.

             However,  with  GCC,  these  variables will be ignored when cross-compiling. In that
             case you need to use a specs file. See: http://www.mingw.org/wiki/SpecsFileHOWTO

   custom_idx
         returned_by: [index]

         References a specific output file of a custom_tgt object.

   custom_tgt
         extends: tgt
         returned_by: custom_target, vcs_tag

         This object is returned by custom_target  and  contains  a  target  with  the  following
         methods:

   dep
         returned_by:  declare_dependency,  dependency,  find_library,  as_link_whole, as_system,
         partial_dependency

         Abstract representation of a dependency

   dict
         since 0.47.0

         Stores a mapping of strings to other objects. See dictionaries[42].

         You can also iterate over dictionaries with the `foreach` statement[29].

         (since 0.48.0): Dictionaries can be added (e.g. `d1 = d2 + d3` and `d1 += d2`).   Values
         from  the second dictionary overrides values from the first.  (since 0.62.0): Dictionary
         order is guaranteed to be insertion order.

   disabler
         returned_by: disabler

         A disabler object is an object that behaves in much the same way as NaN  numbers  do  in
         floating point math. That is when used in any statement (function call, logical op, etc)
         they will cause the statement evaluation  to  immediately  short  circuit  to  return  a
         disabler object. A disabler object has one method:

   env
         returned_by: environment

         This  object  is  returned  by  environment  and  stores  detailed information about how
         environment variables should be set.  It should be passed as the `env` keyword  argument
         to tests and other functions.

         Since  0.58.0  env.append  and  env.prepend  can  be  called  multiple times on the same
         `varname`. Earlier Meson versions would warn and only the last operation took effect.

         EXAMPLE

                 env = environment()

                 # MY_PATH will be '0:1:2:3'
                 env.set('MY_PATH', '1')
                 env.append('MY_PATH', '2')
                 env.append('MY_PATH', '3')
                 env.prepend('MY_PATH', '0')

   exe
         extends: build_tgt
         returned_by: executable, find_program

         An executable

   external_program
         returned_by: find_program

         Opaque object representing an external program

   extracted_obj
         returned_by: extract_all_objects, extract_objects

         Opaque object representing extracted object files from build targets

   feature
         since 0.47.0
         returned_by: get_option, disable_auto_if, disable_if, enable_auto_if, enable_if, require

         Meson object representing a `feature` options[0]

   file
         returned_by: configure_file

         Object that stores the path to an existing file

   generated_list
         returned_by: process

         Opaque object representing the result of a generator.process call.

   generator
         returned_by: generator

         This object is returned by generator and contains a generator that is used to  transform
         files  from  one type to another by an executable (e.g. `idl` files into source code and
         headers).

   host_machine
         extends: build_machine

         Provides information about the host machine -- the machine on which the compiled  binary
         will run. See Cross-compilation[35].

         It has the same methods as build_machine.

         When  not  cross-compiling,  all  the  methods  return  the same values as build_machine
         (because the build machine is the host machine)

         Note that while cross-compiling, it simply returns the values defined in the  cross-info
         file.

   inc
         returned_by: include_directories, private_dir_include

         Opaque wrapper for storing include directories

   int
         returned_by:  get_option,  to_int,  get,  get_unquoted,  alignment, compute_int, sizeof,
         length, returncode, to_int

         All integer numbers. See Numbers[43] for more information.

   jar
         extends: build_tgt
         returned_by: jar

         A Java JAR build target

   lib
         extends: build_tgt
         returned_by: library, shared_library, static_library, get_shared_lib, get_static_lib
         extended_by: both_libs

         Represents either a shared or static library

   list
         returned_by:   files,    get_option,    keys,    cmd_array,    first_supported_argument,
         first_supported_link_argument,                                  get_supported_arguments,
         get_supported_function_attributes,  get_supported_link_arguments,  preprocess,  to_list,
         keys, project_license, project_license_files, split, splitlines

         An array of elements. See arrays[44].

   meson
         The  `meson`  object  allows  you  to  introspect various properties of the system. This
         object is always mapped in the `meson` variable.

   module
         returned_by: import

         Base type for all modules.

         Modules provide their own specific implementation methods, but all modules  provide  the
         following methods:

   range
         since 0.58.0
         returned_by: range

         Opaque object that can be used in a loop and accessed via `[num]`.

   run_tgt
         extends: tgt
         returned_by: run_target

         Opaque object returned by run_target.

   runresult
         returned_by: run_command, run

         This  object encapsulates the result of trying to compile and run a sample piece of code
         with compiler.run or run_command.

   str
         returned_by:  get_option,  join_paths,  to_string,  cpu,  cpu_family,  endian,   system,
         full_path,   get_id,   name,   outdir,  path,  get,  get_unquoted,  get_argument_syntax,
         get_define,     get_id,     get_linker_id,      version,      full_path,      full_path,
         get_configtool_variable,   get_pkgconfig_variable,   get_variable,  include_type,  name,
         type_name,  version,  full_path,   path,   version,   full_path,   to_string,   backend,
         build_options,  build_root,  current_build_dir,  current_source_dir,  global_build_root,
         global_source_root,     project_build_root,      project_name,      project_source_root,
         project_version,  source_root,  version,  stderr,  stdout, format, join, replace, strip,
         substring, to_lower, to_upper, underscorify

         All strings[45] have the following methods. Strings are immutable, all operations return
         their results as a new string.

   structured_src
         returned_by: structured_sources

         Opaque object returned by structured_sources.

   subproject
         returned_by: subproject

         This object is returned by subproject and is an opaque object representing it.

   target_machine
         extends: build_machine

         Provides  information  about  the  target  machine  -- the machine on which the compiled
         binary's output will run. Hence, this object should only be used while cross-compiling a
         compiler. See Cross-compilation[35].

         It has the same methods as build_machine.

         When   all  compilation  is  'native',  all  the  methods  return  the  same  values  as
         build_machine (because the build machine is the host machine and the target machine).

         Note that while cross-compiling, it simply returns the values defined in the  cross-info
         file.  If `target_machine` values are not defined in the cross-info file, `host_machine`
         values are returned instead.

   tgt
         extended_by: alias_tgt, build_tgt, custom_tgt, run_tgt

         Opaque base object for all Meson targets

   void
         returned_by:  add_global_arguments,  add_global_link_arguments,   add_project_arguments,
         add_project_dependencies, add_project_link_arguments, add_test_setup, assert, benchmark,
         debug,   error,   install_data,    install_emptydir,    install_headers,    install_man,
         install_subdir,  install_symlink,  message,  project, set_variable, subdir, subdir_done,
         summary,  test,   unset_variable,   warning,   merge_from,   set,   set10,   set_quoted,
         add_cmake_defines,   append,   prepend,   set,   unset,   add_devenv,   add_dist_script,
         add_install_script,          add_postconf_script,           install_dependency_manifest,
         override_dependency, override_find_program

         Indicates that the function does not return anything.  Similar to `void` in C and C++

SEE ALSO

       [1] Build-options.md#features
       [2] Unit-tests.md
       [3] https://www.testanything.org/
       [4] https://ninja-build.org/manual.html#ref_dependencies
       [5] https://ninja-build.org/manual.html#ref_headers
       [6] https://dlang.org/spec/version.html#version
       [7] https://gcc.gnu.org/wiki/Visibility
       [8] Rust-module.md#proc_macro
       [9] https://docs.microsoft.com/en-us/cpp/build/reference/subsystem-specify-subsystem
       [10] Configuration.md
       [11] https://docs.python.org/3/library/codecs.html#standard-encodings
       [12] https://ninja-build.org/manual.html#_the_literal_console_literal_pool
       [13] Dependencies.md#cmake
       [14] Dependencies.md#dependencies-with-custom-lookup-functionality
       [15] Wrap-dependency-system-manual.md#provide-section
       [16] Dependencies.md#dependencies-with-custom-lookup-functionality
       [17] Builtin-options.md#core-options
       [18] Machine-files.md#binaries
       [19] Build-options.md
       [20] Builtin-options.md#universal-options
       [21] Installing.md
       [22] https://mesonbuild.com/Builtin-options.html
       [23] https://spdx.dev/ids/
       [24] https://spdx.org/licenses/
       [25] External-commands.md
       [26] Subprojects.md
       [27] http://man7.org/linux/man-pages/man3/mallopt.3.html
       [28] Reference-tables.md#cpu-families
       [29] Reference-tables.md#operating-system-names
       [30] Syntax.md#foreach-statements
       [31] Reference-tables.md#compiler-ids
       [32] Reference-tables.md#linker-ids
       [33] Reference-tables.md#gcc-__attribute__
       [34] Commands.md#devenv
       [35] Reference-tables.md#language-arguments-parameter-names
       [36] Cross-compilation.md
       [37] Unity-builds.md
       [38] Syntax.md#string-formatting
       [39] https://docs.python.org/3.7/library/platform.html#platform.system
       [40] https://docs.python.org/3.7/library/platform.html#platform.machine
       [41] https://github.com/mesonbuild/meson/issues/new
       [42] Syntax.md#dictionaries
       [43] Syntax.md#numbers
       [44] Syntax.md#arrays
       [45] Syntax.md#strings

COPYRIGHT

       Documentation  comes from the meson project (https://mesonbuild.com) and is released under
       Attribution-ShareAlike 4.0 International (CC BY-SA 4.0). Code samples are  released  under
       CC0 1.0 Universal (CC0 1.0).

       Meson is a registered trademark of Jussi Pakkanen.

                                            2024-11-28                         meson-reference(3)