NAME

       llvm-build - LLVM Project Build Utility

SYNOPSIS

       llvm-build [options]

DESCRIPTION

       llvm-build  is  a  tool for working with LLVM projects that use the LLVMBuild system for describing their
       components.

       At heart, llvm-build is responsible for loading, verifying,  and  manipulating  the  project's  component
       data. The tool is primarily designed for use in implementing build systems and tools which need access to
       the project structure information.

OPTIONS

       -h, --help
          Print the builtin program help.

       --source-root=PATH
          If given, load the project at the given source root path. If this option is not given, the location of
          the project sources will be inferred from the location of the llvm-build script itself.

       --print-tree
          Print the component tree for the project.

       --write-library-table
          Write  out  the C++ fragment which defines the components, library names, and required libraries. This
          C++ fragment is built into llvm-config|llvm-config in order  to  provide  clients  with  the  list  of
          required libraries for arbitrary component combinations.

       --write-llvmbuild
          Write  out  new  LLVMBuild.txt files based on the loaded components. This is useful for auto-upgrading
          the schema of the files. llvm-build will try to a limited extent to preserve the comments  which  were
          written  in  the  original  source  file,  although at this time it only preserves block comments that
          precede the section names in the LLVMBuild files.

       --write-cmake-fragment
          Write out the LLVMBuild in the form of a CMake fragment, so it can easily be  consumed  by  the  CMake
          based  build  system.  The exact contents and format of this file are closely tied to how LLVMBuild is
          integrated with CMake, see LLVM's top-level CMakeLists.txt.

       --write-make-fragment
          Write out the LLVMBuild in the form of a Makefile fragment, so it can easily be  consumed  by  a  Make
          based  build  system.  The exact contents and format of this file are closely tied to how LLVMBuild is
          integrated with the Makefiles, see LLVM's Makefile.rules.

       --llvmbuild-source-root=PATH
          If given, expect the LLVMBuild files for the project to be rooted at the given path, instead of inside
          the   source   tree   itself.   This  option  is  primarily  designed  for  use  in  conjunction  with
          --write-llvmbuild to test changes to LLVMBuild schema.

EXIT STATUS

       llvm-build exits with 0 if operation was successful. Otherwise, it will exist with a non-zero value.

AUTHOR

       Maintained by The LLVM Team (http://llvm.org/).

COPYRIGHT

       2003-2014, LLVM Project