1# 2# Copyright 2018 gRPC authors. 3# 4# Licensed under the Apache License, Version 2.0 (the "License"); 5# you may not use this file except in compliance with the License. 6# You may obtain a copy of the License at 7# 8# http://www.apache.org/licenses/LICENSE-2.0 9# 10# Unless required by applicable law or agreed to in writing, software 11# distributed under the License is distributed on an "AS IS" BASIS, 12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13# See the License for the specific language governing permissions and 14# limitations under the License. 15# 16 HOST_SYSTEM = $(shell uname | cut -f 1 -d_) 17SYSTEM ?= $(HOST_SYSTEM) 18CXX = g++ 19CPPFLAGS += `pkg-config --cflags protobuf grpc` 20CXXFLAGS += -std=c++11 21ifeq ($(SYSTEM),Darwin) 22LDFLAGS += -L/usr/local/lib `pkg-config --libs protobuf grpc++ grpc`\ 23 -lgrpc++_reflection\ 24 -ldl 25else 26LDFLAGS += -L/usr/local/lib `pkg-config --libs protobuf grpc++ grpc`\ 27 -Wl,--no-as-needed -lgrpc++_reflection -Wl,--as-needed\ 28 -ldl 29endif 30PROTOC = protoc 31GRPC_CPP_PLUGIN = grpc_cpp_plugin 32GRPC_CPP_PLUGIN_PATH ?= `which $(GRPC_CPP_PLUGIN)` 33 PROTOS_PATH = ../../protos 34 vpath %.proto $(PROTOS_PATH) 35 all: system-check greeter_client greeter_server 36 greeter_client: helloworld.pb.o helloworld.grpc.pb.o greeter_client.o 37 $(CXX) $^ $(LDFLAGS) -o $@ 38 greeter_server: helloworld.pb.o helloworld.grpc.pb.o greeter_server.o 39 $(CXX) $^ $(LDFLAGS) -o $@ 40 .PRECIOUS: %.grpc.pb.cc 41%.grpc.pb.cc: %.proto 42 $(PROTOC) -I $(PROTOS_PATH) --grpc_out=. --plugin=protoc-gen-grpc=$(GRPC_CPP_PLUGIN_PATH) $< 43 .PRECIOUS: %.pb.cc 44%.pb.cc: %.proto 45 $(PROTOC) -I $(PROTOS_PATH) --cpp_out=. $< 46 clean: 47 rm -f *.o *.pb.cc *.pb.h greeter_client greeter_server 48 # The following is to test your system and ensure a smoother experience. 49# They are by no means necessary to actually compile a grpc-enabled software. 50 PROTOC_CMD = which $(PROTOC) 51PROTOC_CHECK_CMD = $(PROTOC) --version | grep -q libprotoc.3 52PLUGIN_CHECK_CMD = which $(GRPC_CPP_PLUGIN) 53HAS_PROTOC = $(shell $(PROTOC_CMD) > /dev/null && echo true || echo false) 54ifeq ($(HAS_PROTOC),true) 55HAS_VALID_PROTOC = $(shell $(PROTOC_CHECK_CMD) 2> /dev/null && echo true || echo false) 56endif 57HAS_PLUGIN = $(shell $(PLUGIN_CHECK_CMD) > /dev/null && echo true || echo false) 58 SYSTEM_OK = false 59ifeq ($(HAS_VALID_PROTOC),true) 60ifeq ($(HAS_PLUGIN),true) 61SYSTEM_OK = true 62endif 63endif 64 system-check: 65ifneq ($(HAS_VALID_PROTOC),true) 66 @echo " DEPENDENCY ERROR" 67 @echo 68 @echo "You don't have protoc 3.0.0 installed in your path." 69 @echo "Please install Google protocol buffers 3.0.0 and its compiler." 70 @echo "You can find it here:" 71 @echo 72 @echo " https://github.com/google/protobuf/releases/tag/v3.0.0" 73 @echo 74 @echo "Here is what I get when trying to evaluate your version of protoc:" 75 @echo 76 -$(PROTOC) --version 77 @echo 78 @echo 79endif 80ifneq ($(HAS_PLUGIN),true) 81 @echo " DEPENDENCY ERROR" 82 @echo 83 @echo "You don't have the grpc c++ protobuf plugin installed in your path." 84 @echo "Please install grpc. You can find it here:" 85 @echo 86 @echo " https://github.com/grpc/grpc" 87 @echo 88 @echo "Here is what I get when trying to detect if you have the plugin:" 89 @echo 90 -which $(GRPC_CPP_PLUGIN) 91 @echo 92 @echo 93endif 94ifneq ($(SYSTEM_OK),true) 95 @false 96endif 97