# Copyright 2019 Google LLC. All Rights Reserved. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # Downloads and unpacks Protobuf at configure time set(workdir "${CMAKE_BINARY_DIR}/protobuf-download") configure_file("${CMAKE_CURRENT_LIST_DIR}/CMakeLists.txt.in" "${workdir}/CMakeLists.txt") execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" . RESULT_VARIABLE error WORKING_DIRECTORY "${workdir}") if(error) message(FATAL_ERROR "CMake step for ${PROJECT_NAME} failed: ${error}") endif() execute_process(COMMAND ${CMAKE_COMMAND} --build . RESULT_VARIABLE error WORKING_DIRECTORY "${workdir}") if(error) message(FATAL_ERROR "Build step for ${PROJECT_NAME} failed: ${error}") endif() set(protobuf_BUILD_TESTS OFF CACHE BOOL "") set(protobuf_BUILD_SHARED_LIBS OFF CACHE BOOL "") set(protobuf_WITH_ZLIB OFF CACHE BOOL "") add_subdirectory("${CMAKE_BINARY_DIR}/protobuf-src/cmake" "${CMAKE_BINARY_DIR}/protobuf-build" EXCLUDE_FROM_ALL) get_property(Protobuf_INCLUDE_DIRS TARGET protobuf::libprotobuf PROPERTY INCLUDE_DIRECTORIES)