method

find_library

v2_1_10 - Show latest stable - 0 notes - Class: MakeMakefile

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find_library(lib, func, *paths, &b) public

Returns whether or not the entry point func can be found within the library lib in one of the paths specified, where paths is an array of strings. If func is nil , then the main() function is used as the entry point.

If lib is found, then the path it was found on is added to the list of library paths searched and linked against.

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# File lib/mkmf.rb, line 984
  def find_library(lib, func, *paths, &b)
    func = "main" if !func or func.empty?
    lib = with_config(lib+'lib', lib)
    paths = paths.collect {|path| path.split(File::PATH_SEPARATOR)}.flatten
    checking_for checking_message(func.funcall_style, LIBARG%lib) do
      libpath = $LIBPATH
      libs = append_library($libs, lib)
      begin
        until r = try_func(func, libs, &b) or paths.empty?
          $LIBPATH = libpath | [paths.shift]
        end
        if r
          $libs = libs
          libpath = nil
        end
      ensure
        $LIBPATH = libpath if libpath
      end
      r
    end
  end

find_library

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