1dnl lines starting with "dnl" are comments 2 3PHP_ARG_ENABLE(protobuf, whether to enable Protobuf extension, [ --enable-protobuf Enable Protobuf extension]) 4 5if test "$PHP_PROTOBUF" != "no"; then 6 7 dnl this defines the extension 8 PHP_NEW_EXTENSION(protobuf, upb.c protobuf.c def.c message.c storage.c, $ext_shared) 9 10fi 11