mirror of https://github.com/grpc/grpc.git
The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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95 lines
4.3 KiB
95 lines
4.3 KiB
# Copyright 2017 gRPC authors. |
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# |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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if(gRPC_PROTOBUF_PROVIDER STREQUAL "module") |
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# Building the protobuf tests require gmock what is not part of a standard protobuf checkout. |
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# Disable them unless they are explicitly requested from the cmake command line (when we assume |
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# gmock is downloaded to the right location inside protobuf). |
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if(NOT protobuf_BUILD_TESTS) |
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set(protobuf_BUILD_TESTS OFF CACHE BOOL "Build protobuf tests") |
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endif() |
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# Disable building protobuf with zlib. Building protobuf with zlib breaks |
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# the build if zlib is not installed on the system. |
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if(NOT protobuf_WITH_ZLIB) |
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set(protobuf_WITH_ZLIB OFF CACHE BOOL "Build protobuf with zlib.") |
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endif() |
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if(NOT PROTOBUF_ROOT_DIR) |
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set(PROTOBUF_ROOT_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/protobuf) |
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endif() |
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if(EXISTS "${PROTOBUF_ROOT_DIR}/CMakeLists.txt") |
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set(protobuf_MSVC_STATIC_RUNTIME OFF CACHE BOOL "Link static runtime libraries") |
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add_subdirectory(${PROTOBUF_ROOT_DIR} third_party/protobuf) |
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if(TARGET ${_gRPC_PROTOBUF_LIBRARY_NAME}) |
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set(_gRPC_PROTOBUF_LIBRARIES ${_gRPC_PROTOBUF_LIBRARY_NAME}) |
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endif() |
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if(TARGET libprotoc) |
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set(_gRPC_PROTOBUF_PROTOC_LIBRARIES libprotoc) |
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endif() |
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if(TARGET protoc) |
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set(_gRPC_PROTOBUF_PROTOC protoc) |
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if(CMAKE_CROSSCOMPILING) |
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find_program(_gRPC_PROTOBUF_PROTOC_EXECUTABLE protoc) |
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else() |
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set(_gRPC_PROTOBUF_PROTOC_EXECUTABLE $<TARGET_FILE:protoc>) |
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endif() |
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endif() |
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# For well-known .proto files distributed with protobuf |
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set(_gRPC_PROTOBUF_WELLKNOWN_INCLUDE_DIR "${PROTOBUF_ROOT_DIR}/src") |
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else() |
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message(WARNING "gRPC_PROTOBUF_PROVIDER is \"module\" but PROTOBUF_ROOT_DIR is wrong") |
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endif() |
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if(gRPC_INSTALL AND NOT _gRPC_INSTALL_SUPPORTED_FROM_MODULE) |
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message(WARNING "gRPC_INSTALL will be forced to FALSE because gRPC_PROTOBUF_PROVIDER is \"module\" and CMake version (${CMAKE_VERSION}) is less than 3.13.") |
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set(gRPC_INSTALL FALSE) |
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endif() |
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elseif(gRPC_PROTOBUF_PROVIDER STREQUAL "package") |
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find_package(Protobuf REQUIRED ${gRPC_PROTOBUF_PACKAGE_TYPE}) |
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# {Protobuf,PROTOBUF}_FOUND is defined based on find_package type ("MODULE" vs "CONFIG"). |
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# For "MODULE", the case has also changed between cmake 3.5 and 3.6. |
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# We use the legacy uppercase version for *_LIBRARIES AND *_INCLUDE_DIRS variables |
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# as newer cmake versions provide them too for backward compatibility. |
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if(Protobuf_FOUND OR PROTOBUF_FOUND) |
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if(TARGET protobuf::${_gRPC_PROTOBUF_LIBRARY_NAME}) |
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set(_gRPC_PROTOBUF_LIBRARIES protobuf::${_gRPC_PROTOBUF_LIBRARY_NAME}) |
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else() |
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set(_gRPC_PROTOBUF_LIBRARIES ${PROTOBUF_LIBRARIES}) |
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endif() |
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if(TARGET protobuf::libprotoc) |
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set(_gRPC_PROTOBUF_PROTOC_LIBRARIES protobuf::libprotoc) |
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# extract the include dir from target's properties |
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get_target_property(_gRPC_PROTOBUF_WELLKNOWN_INCLUDE_DIR protobuf::libprotoc INTERFACE_INCLUDE_DIRECTORIES) |
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else() |
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set(_gRPC_PROTOBUF_PROTOC_LIBRARIES ${PROTOBUF_PROTOC_LIBRARIES}) |
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set(_gRPC_PROTOBUF_WELLKNOWN_INCLUDE_DIR ${PROTOBUF_INCLUDE_DIRS}) |
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endif() |
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if(TARGET protobuf::protoc) |
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set(_gRPC_PROTOBUF_PROTOC protobuf::protoc) |
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if(CMAKE_CROSSCOMPILING) |
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find_program(_gRPC_PROTOBUF_PROTOC_EXECUTABLE protoc) |
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else() |
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set(_gRPC_PROTOBUF_PROTOC_EXECUTABLE $<TARGET_FILE:protobuf::protoc>) |
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endif() |
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else() |
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set(_gRPC_PROTOBUF_PROTOC ${PROTOBUF_PROTOC_EXECUTABLE}) |
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if(CMAKE_CROSSCOMPILING) |
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find_program(_gRPC_PROTOBUF_PROTOC_EXECUTABLE protoc) |
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else() |
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set(_gRPC_PROTOBUF_PROTOC_EXECUTABLE ${PROTOBUF_PROTOC_EXECUTABLE}) |
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endif() |
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endif() |
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set(_gRPC_FIND_PROTOBUF "if(NOT Protobuf_FOUND AND NOT PROTOBUF_FOUND)\n find_package(Protobuf ${gRPC_PROTOBUF_PACKAGE_TYPE})\nendif()") |
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endif() |
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endif()
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