Jan Tattermusch | f38b152 | 2017-12-19 14:05:41 -0800 | [diff] [blame] | 1 | # Copyright 2017 gRPC authors. |
| 2 | # |
| 3 | # Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | # you may not use this file except in compliance with the License. |
| 5 | # You may obtain a copy of the License at |
| 6 | # |
| 7 | # http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | # |
| 9 | # Unless required by applicable law or agreed to in writing, software |
| 10 | # distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | # See the License for the specific language governing permissions and |
| 13 | # limitations under the License. |
| 14 | |
| 15 | if("${gRPC_PROTOBUF_PROVIDER}" STREQUAL "module") |
| 16 | # Building the protobuf tests require gmock what is not part of a standard protobuf checkout. |
| 17 | # Disable them unless they are explicitly requested from the cmake command line (when we assume |
| 18 | # gmock is downloaded to the right location inside protobuf). |
| 19 | if(NOT protobuf_BUILD_TESTS) |
| 20 | set(protobuf_BUILD_TESTS OFF CACHE BOOL "Build protobuf tests") |
| 21 | endif() |
| 22 | # Disable building protobuf with zlib. Building protobuf with zlib breaks |
| 23 | # the build if zlib is not installed on the system. |
| 24 | if(NOT protobuf_WITH_ZLIB) |
| 25 | set(protobuf_WITH_ZLIB OFF CACHE BOOL "Build protobuf with zlib.") |
| 26 | endif() |
| 27 | if(NOT PROTOBUF_ROOT_DIR) |
| 28 | set(PROTOBUF_ROOT_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/protobuf) |
| 29 | endif() |
Jan Tattermusch | 586f719 | 2018-01-16 17:57:17 +0100 | [diff] [blame] | 30 | |
Jan Tattermusch | f38b152 | 2017-12-19 14:05:41 -0800 | [diff] [blame] | 31 | if(EXISTS "${PROTOBUF_ROOT_DIR}/cmake/CMakeLists.txt") |
| 32 | set(protobuf_MSVC_STATIC_RUNTIME OFF CACHE BOOL "Link static runtime libraries") |
| 33 | add_subdirectory(${PROTOBUF_ROOT_DIR}/cmake third_party/protobuf) |
| 34 | if(TARGET ${_gRPC_PROTOBUF_LIBRARY_NAME}) |
| 35 | set(_gRPC_PROTOBUF_LIBRARIES ${_gRPC_PROTOBUF_LIBRARY_NAME}) |
| 36 | endif() |
| 37 | if(TARGET libprotoc) |
| 38 | set(_gRPC_PROTOBUF_PROTOC_LIBRARIES libprotoc) |
| 39 | endif() |
| 40 | if(TARGET protoc) |
| 41 | set(_gRPC_PROTOBUF_PROTOC protoc) |
| 42 | set(_gRPC_PROTOBUF_PROTOC_EXECUTABLE $<TARGET_FILE:protoc>) |
| 43 | endif() |
Jan Tattermusch | 586f719 | 2018-01-16 17:57:17 +0100 | [diff] [blame] | 44 | set(_gRPC_PROTOBUF_INCLUDE_DIR "${PROTOBUF_ROOT_DIR}") |
| 45 | # For well-known .proto files distributed with protobuf |
| 46 | set(_gRPC_PROTOBUF_WELLKNOWN_INCLUDE_DIR "${PROTOBUF_ROOT_DIR}/src") |
Jan Tattermusch | f38b152 | 2017-12-19 14:05:41 -0800 | [diff] [blame] | 47 | else() |
| 48 | message(WARNING "gRPC_PROTOBUF_PROVIDER is \"module\" but PROTOBUF_ROOT_DIR is wrong") |
| 49 | endif() |
| 50 | if(gRPC_INSTALL) |
| 51 | message(WARNING "gRPC_INSTALL will be forced to FALSE because gRPC_PROTOBUF_PROVIDER is \"module\"") |
| 52 | set(gRPC_INSTALL FALSE) |
| 53 | endif() |
| 54 | elseif("${gRPC_PROTOBUF_PROVIDER}" STREQUAL "package") |
| 55 | find_package(Protobuf REQUIRED ${gRPC_PROTOBUF_PACKAGE_TYPE}) |
Jan Tattermusch | fb227b0 | 2018-01-18 19:32:27 +0100 | [diff] [blame] | 56 | |
| 57 | # {Protobuf,PROTOBUF}_FOUND is defined based on find_package type ("MODULE" vs "CONFIG"). |
| 58 | # For "MODULE", the case has also changed between cmake 3.5 and 3.6. |
| 59 | # We use the legacy uppercase version for *_LIBRARIES AND *_INCLUDE_DIRS variables |
| 60 | # as newer cmake versions provide them too for backward compatibility. |
Jan Tattermusch | f38b152 | 2017-12-19 14:05:41 -0800 | [diff] [blame] | 61 | if(Protobuf_FOUND OR PROTOBUF_FOUND) |
| 62 | if(TARGET protobuf::${_gRPC_PROTOBUF_LIBRARY_NAME}) |
| 63 | set(_gRPC_PROTOBUF_LIBRARIES protobuf::${_gRPC_PROTOBUF_LIBRARY_NAME}) |
| 64 | else() |
| 65 | set(_gRPC_PROTOBUF_LIBRARIES ${PROTOBUF_LIBRARIES}) |
| 66 | endif() |
| 67 | if(TARGET protobuf::libprotoc) |
| 68 | set(_gRPC_PROTOBUF_PROTOC_LIBRARIES protobuf::libprotoc) |
Jan Tattermusch | 586f719 | 2018-01-16 17:57:17 +0100 | [diff] [blame] | 69 | # extract the include dir from target's properties |
| 70 | get_target_property(_gRPC_PROTOBUF_WELLKNOWN_INCLUDE_DIR protobuf::libprotoc INTERFACE_INCLUDE_DIRECTORIES) |
Jan Tattermusch | f38b152 | 2017-12-19 14:05:41 -0800 | [diff] [blame] | 71 | else() |
| 72 | set(_gRPC_PROTOBUF_PROTOC_LIBRARIES ${PROTOBUF_PROTOC_LIBRARIES}) |
Jan Tattermusch | 586f719 | 2018-01-16 17:57:17 +0100 | [diff] [blame] | 73 | set(_gRPC_PROTOBUF_WELLKNOWN_INCLUDE_DIR ${PROTOBUF_INCLUDE_DIRS}) |
Jan Tattermusch | f38b152 | 2017-12-19 14:05:41 -0800 | [diff] [blame] | 74 | endif() |
| 75 | if(TARGET protobuf::protoc) |
| 76 | set(_gRPC_PROTOBUF_PROTOC protobuf::protoc) |
| 77 | set(_gRPC_PROTOBUF_PROTOC_EXECUTABLE $<TARGET_FILE:protobuf::protoc>) |
| 78 | else() |
| 79 | set(_gRPC_PROTOBUF_PROTOC ${PROTOBUF_PROTOC_EXECUTABLE}) |
| 80 | set(_gRPC_PROTOBUF_PROTOC_EXECUTABLE ${PROTOBUF_PROTOC_EXECUTABLE}) |
| 81 | endif() |
Jan Tattermusch | 586f719 | 2018-01-16 17:57:17 +0100 | [diff] [blame] | 82 | set(_gRPC_PROTOBUF_INCLUDE_DIR ${PROTOBUF_INCLUDE_DIRS}) |
Jan Tattermusch | f38b152 | 2017-12-19 14:05:41 -0800 | [diff] [blame] | 83 | set(_gRPC_FIND_PROTOBUF "if(NOT Protobuf_FOUND AND NOT PROTOBUF_FOUND)\n find_package(Protobuf ${gRPC_PROTOBUF_PACKAGE_TYPE})\nendif()") |
| 84 | endif() |
Jan Tattermusch | f38b152 | 2017-12-19 14:05:41 -0800 | [diff] [blame] | 85 | endif() |