    # File lib/phusion_passenger/platform_info/compiler.rb, line 30
            def self.gnu_make
                    gmake = find_command('gmake')
                    if !gmake
                            gmake = find_command('make')
                            if gmake
                                    if `#{gmake} --version 2>&1` =~ /GNU/
                                            return gmake
                                    else
                                            return nil
                                    end
                            else
                                    return nil
                            end
                    else
                            return gmake
                    end
            end