-grpc_la_CPPFLAGS = $(AM_CPPFLAGS) -std=c++11
-grpc_la_CXXFLAGS = $(AM_CXXFLAGS) -std=c++11
-grpc_la_LDFLAGS = $(PLUGIN_LDFLAGS)
-grpc_la_LIBADD = -lgrpc++ -lgrpc -lgpr -lprotobuf
+grpc_la_CPPFLAGS = $(AM_CPPFLAGS) $(BUILD_WITH_LIBGRPCPP_CPPFLAGS) $(BUILD_WITH_LIBPROTOBUF_CPPFLAGS)
+grpc_la_LDFLAGS = $(PLUGIN_LDFLAGS) $(BUILD_WITH_LIBGRPCPP_LDFLAGS) $(BUILD_WITH_LIBPROTOBUF_LDFLAGS)
+grpc_la_LIBADD = $(BUILD_WITH_LIBGRPCPP_LIBS) $(BUILD_WITH_LIBPROTOBUF_LIBS)