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 17HOST_SYSTEM = $(shell uname | cut -f 1 -d_) 18SYSTEM ?= $(HOST_SYSTEM) 19CXX = g++ 20CPPFLAGS += `pkg-config --cflags protobuf grpc` 21CXXFLAGS += -std=c++11 22ifeq ($(SYSTEM),Darwin) 23LDFLAGS += -L/usr/local/lib `pkg-config --libs protobuf grpc++ grpc`\ 24 -lgrpc++_reflection\ 25 -ldl 26else 27LDFLAGS += -L/usr/local/lib `pkg-config --libs protobuf grpc++ grpc`\ 28 -Wl,--no-as-needed -lgrpc++_reflection -Wl,--as-needed\ 29 -ldl 30endif 31PROTOC = protoc 32GRPC_CPP_PLUGIN = grpc_cpp_plugin 33GRPC_CPP_PLUGIN_PATH ?= `which $(GRPC_CPP_PLUGIN)` 34 35PROTOS_PATH = ../../protos 36 37vpath %.proto $(PROTOS_PATH) 38 39all: system-check greeter_client greeter_server 40 41greeter_client: helloworld.pb.o helloworld.grpc.pb.o greeter_client.o 42 $(CXX) $^ $(LDFLAGS) -o $@ 43 44greeter_server: helloworld.pb.o helloworld.grpc.pb.o greeter_server.o 45 $(CXX) $^ $(LDFLAGS) -o $@ 46 47.PRECIOUS: %.grpc.pb.cc 48%.grpc.pb.cc: %.proto 49 $(PROTOC) -I $(PROTOS_PATH) --grpc_out=. --plugin=protoc-gen-grpc=$(GRPC_CPP_PLUGIN_PATH) $< 50 51.PRECIOUS: %.pb.cc 52%.pb.cc: %.proto 53 $(PROTOC) -I $(PROTOS_PATH) --cpp_out=. $< 54 55clean: 56 rm -f *.o *.pb.cc *.pb.h greeter_client greeter_server 57 58 59# The following is to test your system and ensure a smoother experience. 60# They are by no means necessary to actually compile a grpc-enabled software. 61 62PROTOC_CMD = which $(PROTOC) 63PROTOC_CHECK_CMD = $(PROTOC) --version | grep -q libprotoc.3 64PLUGIN_CHECK_CMD = which $(GRPC_CPP_PLUGIN) 65HAS_PROTOC = $(shell $(PROTOC_CMD) > /dev/null && echo true || echo false) 66ifeq ($(HAS_PROTOC),true) 67HAS_VALID_PROTOC = $(shell $(PROTOC_CHECK_CMD) 2> /dev/null && echo true || echo false) 68endif 69HAS_PLUGIN = $(shell $(PLUGIN_CHECK_CMD) > /dev/null && echo true || echo false) 70 71SYSTEM_OK = false 72ifeq ($(HAS_VALID_PROTOC),true) 73ifeq ($(HAS_PLUGIN),true) 74SYSTEM_OK = true 75endif 76endif 77 78system-check: 79ifneq ($(HAS_VALID_PROTOC),true) 80 @echo " DEPENDENCY ERROR" 81 @echo 82 @echo "You don't have protoc 3.0.0 installed in your path." 83 @echo "Please install Google protocol buffers 3.0.0 and its compiler." 84 @echo "You can find it here:" 85 @echo 86 @echo " https://github.com/google/protobuf/releases/tag/v3.0.0" 87 @echo 88 @echo "Here is what I get when trying to evaluate your version of protoc:" 89 @echo 90 -$(PROTOC) --version 91 @echo 92 @echo 93endif 94ifneq ($(HAS_PLUGIN),true) 95 @echo " DEPENDENCY ERROR" 96 @echo 97 @echo "You don't have the grpc c++ protobuf plugin installed in your path." 98 @echo "Please install grpc. You can find it here:" 99 @echo 100 @echo " https://github.com/grpc/grpc" 101 @echo 102 @echo "Here is what I get when trying to detect if you have the plugin:" 103 @echo 104 -which $(GRPC_CPP_PLUGIN) 105 @echo 106 @echo 107endif 108ifneq ($(SYSTEM_OK),true) 109 @false 110endif