# File src/ruby_supportlib/phusion_passenger/platform_info/compiler.rb, line 563
    def self.gnu_make
      if result = string_env('GMAKE')
        return result
      else
        result = find_command('gmake')
        if !result
          result = find_command('make')
          if result
            if `#{result} --version 2>&1` =~ /GNU/
              return result
            else
              return nil
            end
          else
            return nil
          end
        else
          return result
        end
      end
    end