NAME

       make - A Make Utility for Erlang

DESCRIPTION

       The module make provides a set of functions similar to the UNIX type Make functions.

EXPORTS

       all() -> up_to_date | error
       all(Options) -> up_to_date | error

              Types:

                 Options = [Option]
                  Option = noexec | load | netload | <compiler option>

              This  function first looks in the current working directory for a file named Emakefile (see below)
              specifying the set of modules to compile and the compile options to use. If no such file is found,
              the set of modules to compile defaults to all modules in the current working directory.

              Traversing  the  set  of  modules,  it  then recompiles every module for which at least one of the
              following conditions apply:

                * there is no object file, or

                * the source file has been modified since it was last compiled, or,

                * an include file has been modified since the source file was last compiled.

              As a side effect, the function prints the name of each module it tries to compile. If  compilation
              fails for a module, the make procedure stops and error is returned.

              Options is a list of make- and compiler options. The following make options exist:

                * noexec
                   No execution mode. Just prints the name of each module that needs to be compiled.

                * load
                   Load mode. Loads all recompiled modules.

                * netload
                   Net load mode. Loads all recompiled modules on all known nodes.

              All  items  in Options that are not make options are assumed to be compiler options and are passed
              as-is to compile:file/2. Options defaults to [].

       files(ModFiles) -> up_to_date | error
       files(ModFiles, Options) -> up_to_date | error

              Types:

                 ModFiles = [Module | File]
                  Module = atom()
                  File = string()
                 Options = [Option]
                  Option = noexec | load | netload | <compiler option>

              files/1,2 does exactly the same thing as all/0,1 but for the specified ModFiles, which is  a  list
              of module or file names. The file extension .erl may be omitted.

              The  Emakefile  (if  it exists) in the current directory is searched for compiler options for each
              module. If a given module does not exist in Emakefile or if Emakefile does not exist,  the  module
              is still compiled.

EMAKEFILE

       make:all/0,1  and make:files/1,2 looks in the current working directory for a file named Emakefile. If it
       exists, Emakefile should contain elements like this:

       Modules.
       {Modules,Options}.

       Modules is an atom or a list of atoms. It can be

         * a module name, e.g. file1

         * a module name in another directory, e.g. ../foo/file3

         * a set of modules specified with a wildcards, e.g. 'file*'

         * a wildcard indicating all modules in current directory, i.e. '*'

         * a list of any of the above, e.g. ['file*','../foo/file3','File4']

       Options is a list of compiler options.

       Emakefile is read from top to bottom. If a module matches more than one entry, the first match is  valid.
       For   example,   the   following   Emakefile  means  that  file1  shall  be  compiled  with  the  options
       [debug_info,{i,"../foo"}], while all other files in the current directory shall be compiled with only the
       debug_info flag.

       {'file1',[debug_info,{i,"../foo"}]}.
       {'*',[debug_info]}.