配置protobuf头文件和库

findprotobuf.cmake

MACRO(FIND_PROTOBUF_INCLUDE THIS_PROTOBUF_INCLUDE_DIR THIS_PROTOBUF_INCLUDE_FILE)
	FIND_PATH( ${THIS_PROTOBUF_INCLUDE_DIR} ${THIS_PROTOBUF_INCLUDE_FILE} )
ENDMACRO(FIND_PROTOBUF_INCLUDE THIS_PROTOBUF_INCLUDE_DIR THIS_PROTOBUF_INCLUDE_FILE)

FIND_PROTOBUF_INCLUDE(PROTOBUF_INCLUDE_DIR protobuf.h)

MACRO(FIND_PROTOBUF_LIBRARY THIS_LIBRARY  THIS_LIBRARY_NAME)
	FIND_LIBRARY( ${THIS_LIBRARY} ${THIS_LIBRARY_NAME} )
ENDMACRO(FIND_PROTOBUF_LIBRARY THIS_LIBRARY THIS_LIBRARY_NAME)

FIND_PROTOBUF_LIBRARY(PROTOBUF_LIBRARY protobuf)
FIND_PROTOBUF_LIBRARY(PROTOBUF_LIBRARY_DEBUG protobuf)

FIND_PROTOBUF_LIBRARY(PROTOBUF_LITE_LIBRARY protobuf_lite)
FIND_PROTOBUF_LIBRARY(PROTOBUF_LITE_LIBRARY_DEBUG protobuf_lite)

FIND_PROTOBUF_LIBRARY(PROTOC_LIBRARY protoc)
FIND_PROTOBUF_LIBRARY(PROTOC_LIBRARY_DEBUG protoc)

#　为了下游可以继续使用
set(protobuf_FOUND FALSE)
if (PROTOBUF_INCLUDE_DIR AND PROTOBUF_LIBRARY)
	set(protobuf_FOUND TRUE)
endif()

CMakeLists.txt

cmake_minimum_required(VERSION 3.15)

MACRO(LINK_WITH_VARIABLES TARGETNAME)
	FOREACH(varname ${ARGN})
		#release test.lib debug testd.lib
		TARGET_LINK_LIBRARIES(${TARGETNAME} optimized "${${varname}}" debug ${${varname}_DEBUG} )
	ENDFOREACH(varname)
ENDMACRO()

PROJECT(protobuf_test)

add_executable(${PROJECT_NAME} main.cpp)

set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
FIND_PACKAGE(protobuf REQUIRED)

IF (protobuf_FOUND)
	MESSAGE("protobuf FOUND")
	INCLUDE_DIRECTORIES( ${PROTOBUF_INCLUDE_DIR})
	LINK_WITH_VARIABLES(protobuf_test PROTOBUF_LIBRARY PROTOBUF_LITE_LIBRARY PROTOC_LIBRARY )
ENDIF(protobuf_FOUND)

配置条目