platform_macros.h: #undef GOOGLE_PROTOBUF_PLATFORM_ERROR once it's no longer needed
@@ -89,4 +89,6 @@ GOOGLE_PROTOBUF_PLATFORM_ERROR
#define GOOGLE_PROTOBUF_OS_NACL
#endif
+#undef GOOGLE_PROTOBUF_PLATFORM_ERROR
+
#endif // GOOGLE_PROTOBUF_PLATFORM_MACROS_H_