{ "tmpdir", 'm', 0, OptionArg.STRING, ref opt_tmpdir, "Temporary Directory to use", null },
{ "index-files", 'i', 0, OptionArg.FILENAME_ARRAY, ref opt_files_from ,"files that contain listing of files to compile", null },
{ "tmpdir", 'm', 0, OptionArg.STRING, ref opt_tmpdir, "Temporary Directory to use", null },
{ "index-files", 'i', 0, OptionArg.FILENAME_ARRAY, ref opt_files_from ,"files that contain listing of files to compile", null },