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# Minimum CMake required
cmake_minimum_required(VERSION 2.8)
# Project
project(HelloWorld C CXX)
if(NOT MSVC)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
else()
add_definitions(-D_WIN32_WINNT=0x600)
endif()
# Protobuf
# NOTE: we cannot use "CONFIG" mode here because protobuf-config.cmake
# is broken when used with CMAKE_INSTALL_PREFIX
find_package(Protobuf REQUIRED)
message(STATUS "Using protobuf ${protobuf_VERSION}")
if(Protobuf_FOUND)
# Protobuf_FOUND is set for package type "CONFIG"
set(_PROTOBUF_LIBPROTOBUF protobuf::libprotobuf)
set(_PROTOBUF_PROTOC protobuf::protoc)
elseif(PROTOBUF_FOUND)
# PROTOBUF_FOUND is set for package type "MODULE"
set(_PROTOBUF_LIBPROTOBUF ${PROTOBUF_LIBRARIES})
set(_PROTOBUF_PROTOC ${PROTOBUF_PROTOC_EXECUTABLE})
include_directories(${PROTOBUF_INCLUDE_DIRS})
else()
message(WARNING "Failed to locate libprotobuf and protoc!")
endif()
# gRPC
find_package(gRPC CONFIG REQUIRED)
message(STATUS "Using gRPC ${gRPC_VERSION}")
# gRPC C++ plugin
get_target_property(gRPC_CPP_PLUGIN_EXECUTABLE gRPC::grpc_cpp_plugin
IMPORTED_LOCATION_RELEASE)
# Proto file
get_filename_component(hw_proto "../../protos/helloworld.proto" ABSOLUTE)
get_filename_component(hw_proto_path "${hw_proto}" PATH)
# Generated sources
protobuf_generate_cpp(hw_proto_srcs hw_proto_hdrs "${hw_proto}")
set(hw_grpc_srcs "${CMAKE_CURRENT_BINARY_DIR}/helloworld.grpc.pb.cc")
set(hw_grpc_hdrs "${CMAKE_CURRENT_BINARY_DIR}/helloworld.grpc.pb.h")
add_custom_command(
OUTPUT "${hw_grpc_srcs}" "${hw_grpc_hdrs}"
COMMAND ${_PROTOBUF_PROTOC}
ARGS --grpc_out "${CMAKE_CURRENT_BINARY_DIR}" -I "${hw_proto_path}"
--plugin=protoc-gen-grpc="${gRPC_CPP_PLUGIN_EXECUTABLE}"
"${hw_proto}"
DEPENDS "${hw_proto}")
# Generated include directory
include_directories("${CMAKE_CURRENT_BINARY_DIR}")
# Targets greeter_[async_](client|server)
foreach(_target
greeter_client greeter_server
greeter_async_client greeter_async_server)
add_executable(${_target} "${_target}.cc"
${hw_proto_srcs}
${hw_grpc_srcs})
target_link_libraries(${_target}
${_PROTOBUF_LIBPROTOBUF}
gRPC::grpc++_unsecure)
endforeach()
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