CMake: build Protobuf project

CMakeLists.txt

@@ -22,6 +22,8 @@ set(PROJECT_DESCRIPTION_FULL "Source SDK toolkit")
 string(TIMESTAMP PROJECT_BUILD_DATE "%Y-%m-%d")
 string(TIMESTAMP PROJECT_BUILD_TIME "%H:%M:%S")
 
+set(THIRDPARTY_DIR "thirdparty")
+set(PROTOBUF_DIR "${THIRDPARTY_DIR}/protobuf-3.21.8")
 set(SOURCESDK_DIR "${CMAKE_CURRENT_SOURCE_DIR}")
 
 set(SOURCESDK_PROTO_DIRS
@@ -55,6 +57,7 @@ elseif(WINDOWS)
 	include("cmake/platform/windows.cmake")
 endif()
 
+include("cmake/protobuf.cmake")
 include("cmake/sourcesdk.cmake")
 include("cmake/sourcesdk/proto.cmake")
 include("cmake/sourcesdk/targets/entity2.cmake")
@@ -78,4 +81,4 @@ target_link_options(${PROJECT_NAME} PRIVATE ${PLATFORM_LINKER_OPTIONS} ${SOURCES
 target_compile_definitions(${PROJECT_NAME} PRIVATE ${PLATFORM_COMPILE_DEFINITIONS} ${SOURCESDK_COMPILE_DEFINTIONS})
 target_include_directories(${PROJECT_NAME} PRIVATE ${PLATFORM_INCLUDE_DIR} ${SOURCESDK_INCLUDE_DIR})
 
-target_link_libraries(${PROJECT_NAME} PUBLIC ${PLATFORM_LINK_LIBRARIES} ${SOURCESDK_LINK_LIBRARIES} ${SOURCESDK_PROTOBUF_STATIC_LIBRARY} ${SOURCESDK_ENTITY2_NAME} ${SOURCESDK_INTERFACES_NAME} ${SOURCESDK_MATHLIB_NAME} ${SOURCESDK_TIER1_NAME})
+target_link_libraries(${PROJECT_NAME} PUBLIC ${PLATFORM_LINK_LIBRARIES} ${SOURCESDK_LINK_LIBRARIES} ${SOURCESDK_ENTITY2_NAME} ${SOURCESDK_INTERFACES_NAME} ${SOURCESDK_MATHLIB_NAME} ${SOURCESDK_TIER1_NAME} ${PROTOBUF_BINARY_DIR})

cmake/protobuf.cmake

@@ -0,0 +1,12 @@
+if(NOT PROTOBUF_DIR)
+	message(FATAL_ERROR "PROTOBUF_DIR is empty")
+endif()
+
+set(PROTOBUF_NAME "protobuf")
+set(PROTOBUF_LIB_NAME "lib${PROTOBUF_NAME}")
+set(PROTOBUF_BINARY_DIR "${PROTOBUF_NAME}")
+
+set(${PROTOBUF_NAME}_INSTALL OFF CACHE BOOL "Install protobuf binaries and files")
+set(${PROTOBUF_NAME}_BUILD_TESTS OFF CACHE BOOL "Build tests")
+add_subdirectory(${PROTOBUF_DIR} ${PROTOBUF_BINARY_DIR})
+set_target_properties(${PROTOBUF_LIB_NAME} PROPERTIES CXX_STANDARD 11 CXX_STANDARD_REQUIRED ON CXX_EXTENSIONS OFF)

cmake/sourcesdk/proto.cmake

@@ -1,3 +1,7 @@
+if(NOT PROTOBUF_DIR)
+	message(FATAL_ERROR "PROTOBUF_DIR is empty")
+endif()
+
 if(NOT SOURCESDK_DIR)
 	message(FATAL_ERROR "SOURCESDK_DIR is empty")
 endif()
@@ -9,14 +13,11 @@ endif()
 ## Generate protobuf source & headers
 if(LINUX)
 	set(SOURCESDK_PROTOC_EXECUTABLE ${SOURCESDK_DIR}/devtools/bin/linux/protoc)
-	set(SOURCESDK_PROTOBUF_STATIC_LIBRARY ${SOURCESDK_LIB_DIR}/linux64/release/libprotobuf.a)
 elseif(WINDOWS)
 	set(SOURCESDK_PROTOC_EXECUTABLE ${SOURCESDK_DIR}/devtools/bin/protoc.exe)
-	set(SOURCESDK_PROTOBUF_STATIC_LIBRARY ${SOURCESDK_LIB_DIR}/public/win64/2015/libprotobuf.lib)
 endif()
 
-set(SOURCESDK_PROTOBUF_DIR "${SOURCESDK_DIR}/thirdparty/protobuf-3.21.8")
-set(SOURCESDK_PROTOBUF_SOURCE_DIR "${SOURCESDK_PROTOBUF_DIR}/src")
+set(SOURCESDK_PROTOBUF_SOURCE_DIR "${PROTOBUF_DIR}/src")
 list(APPEND SOURCESDK_INCLUDE_DIR ${SOURCESDK_PROTOBUF_SOURCE_DIR})
 
 set(SOURCESDK_PROTO_FILENAME_FILES