Identify system and remove --no-as-need if it is Mac OS

8 years ago · cd0d8aed65
parent 4e3df00f00
commit cd0d8aed65
2 changed files with 16 additions and 0 deletions
--- a/examples/cpp/helloworld/Makefile
+++ b/examples/cpp/helloworld/Makefile
@ -29,12 +29,20 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #

+HOST_SYSTEM = $(shell uname | cut -f 1 -d_)
+SYSTEM ?= $(HOST_SYSTEM)
 CXX = g++
 CPPFLAGS += -I/usr/local/include -pthread
 CXXFLAGS += -std=c++11
+ifeq ($(SYSTEM),Darwin)
 LDFLAGS += -L/usr/local/lib `pkg-config --libs grpc++ grpc`       \
           -lgrpc++_reflection \
           -lprotobuf -lpthread -ldl
+else
+LDFLAGS += -L/usr/local/lib `pkg-config --libs grpc++ grpc`       \
+           -Wl,--no-as-needed -lgrpc++_reflection -Wl,--as-needed \
+           -lprotobuf -lpthread -ldl
+endif
 PROTOC = protoc
 GRPC_CPP_PLUGIN = grpc_cpp_plugin
 GRPC_CPP_PLUGIN_PATH ?= `which $(GRPC_CPP_PLUGIN)`
--- a/examples/cpp/route_guide/Makefile
+++ b/examples/cpp/route_guide/Makefile
@ -29,12 +29,20 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #

+HOST_SYSTEM = $(shell uname | cut -f 1 -d_)
+SYSTEM ?= $(HOST_SYSTEM)
 CXX = g++
 CPPFLAGS += -I/usr/local/include -pthread
 CXXFLAGS += -std=c++11
+ifeq ($(SYSTEM),Darwin)
 LDFLAGS += -L/usr/local/lib `pkg-config --libs grpc++`            \
           -lgrpc++_reflection \
           -lprotobuf -lpthread -ldl
+else
+LDFLAGS += -L/usr/local/lib `pkg-config --libs grpc++`            \
+           -Wl,--no-as-needed -lgrpc++_reflection -Wl,--as-needed \
+           -lprotobuf -lpthread -ldl
+endif
 PROTOC = protoc
 GRPC_CPP_PLUGIN = grpc_cpp_plugin
 GRPC_CPP_PLUGIN_PATH ?= `which $(GRPC_CPP_PLUGIN)`