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Diffstat (limited to 'third_party/cpp/googleapis/cmake/FindProtobufTargets.cmake')
| -rw-r--r-- | third_party/cpp/googleapis/cmake/FindProtobufTargets.cmake | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/third_party/cpp/googleapis/cmake/FindProtobufTargets.cmake b/third_party/cpp/googleapis/cmake/FindProtobufTargets.cmake deleted file mode 100644 index ab196118d7..0000000000 --- a/third_party/cpp/googleapis/cmake/FindProtobufTargets.cmake +++ /dev/null @@ -1,204 +0,0 @@ -# ~~~ -# Copyright 2019 Google LLC -# -# 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. -# ~~~ - -#[=======================================================================[.rst: -FindProtobufTargets -------------------- - -A module to use `Protobuf` with less complications. - -Using ``find_package(Protobuf)`` should be simple, but it is not. - -CMake provides a ``FindProtobuf`` module. Unfortunately it does not generate -`protobuf::*` targets until CMake-3.9, and `protobuf::protoc` does not -appear until CMake-3.10. - -The CMake-config files generated by `protobuf` always create these targets, -but on some Linux distributions (e.g. Fedora>=29, and openSUSE-Tumbleweed) there -are system packages for protobuf, but these packages are installed without the -CMake-config files. One must either use the ``FindProtobuf`` module, find the -libraries via `pkg-config`, or find the libraries manually. - -When the CMake-config files are installed they produce the same targets as -recent versions of ``FindProtobuf``. However, they do not produce the -`Protobuf_LIBRARY`, `Protobuf_INCLUDE_DIR`, etc. that are generated by the -module. Furthermore, the `protobuf::protoc` library is not usable when loaded -from the CMake-config files: its ``IMPORTED_LOCATION`` variable is not defined. - -This module is designed to provide a single, uniform, ``find_package()`` -module that always produces the same outputs: - -- It always generates the ``protobuf::*`` targets. -- It always defines ``ProtobufTargets_FOUND`` and ``ProtobufTargets_VERSION``. -- It *prefers* using the CMake config files if they are available. -- It fallsback on the ``FindProtobuf`` module if the config files are not found. -- It populates any missing targets and their properties. - -The following :prop_tgt:`IMPORTED` targets are defined: - -``protobuf::libprotobuf`` - The protobuf library. -``protobuf::libprotobuf-lite`` - The protobuf lite library. -``protobuf::libprotoc`` - The protoc library. -``protobuf::protoc`` - The protoc compiler. - -Example: - -.. code-block:: cmake - - find_package(ProtobufTargets REQUIRED) - add_executable(bar bar.cc) - target_link_libraries(bar PRIVATE protobuf::libprotobuf) - -#]=======================================================================] - -if (protobuf_DEBUG) - message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] " - "protobuf_USE_STATIC_LIBS = ${protobuf_USE_STATIC_LIBS}" - " ProtobufTargets = ${ProtobufTargets_FOUND}") -endif () - -# Always load thread support, even on Windows. -find_package(Threads REQUIRED) - -# First try to use the ``protobufConfig.cmake`` or ``protobuf-config.cmake`` -# file if it was installed. This is common on systems (or package managers) -# where protobuf was compiled and installed with `CMake`. Note that on Linux -# this *must* be all lowercase ``protobuf``, while on Windows it does not -# matter. -find_package(protobuf CONFIG) - -if (protobuf_DEBUG) - message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] " - "protobuf_FOUND = ${protobuf_FOUND}" - " protobuf_VERSION = ${protobuf_VERSION}") -endif () - -if (protobuf_FOUND) - set(ProtobufTargets_FOUND 1) - set(ProtobufTargets_VERSION ${protobuf_VERSION}) - if (protobuf_DEBUG) - message( - STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] " - "ProtobufTargets_FOUND = ${ProtobufTargets_FOUND}" - " ProtobufTargets_VERSION = ${ProtobufTargets_VERSION}") - endif () -else () - find_package(Protobuf QUIET) - if (Protobuf_FOUND) - set(ProtobufTargets_FOUND 1) - set(ProtobufTargets_VERSION ${Protobuf_VERSION}) - - if (NOT TARGET protobuf::libprotobuf) - add_library(protobuf::libprotobuf IMPORTED INTERFACE) - set_property( - TARGET protobuf::libprotobuf - PROPERTY INTERFACE_INCLUDE_DIRECTORIES ${Protobuf_INCLUDE_DIR}) - set_property( - TARGET protobuf::libprotobuf APPEND - PROPERTY INTERFACE_LINK_LIBRARIES ${Protobuf_LIBRARY} - Threads::Threads) - endif () - - if (NOT TARGET protobuf::libprotobuf-lite) - add_library(protobuf::libprotobuf-lite IMPORTED INTERFACE) - set_property( - TARGET protobuf::libprotobuf-lite - PROPERTY INTERFACE_INCLUDE_DIRECTORIES ${Protobuf_INCLUDE_DIR}) - set_property( - TARGET protobuf::libprotobuf-lite APPEND - PROPERTY INTERFACE_LINK_LIBRARIES ${Protobuf_LITE_LIBRARY} - Threads::Threads) - endif () - - if (NOT TARGET protobuf::libprotoc) - add_library(protobuf::libprotoc IMPORTED INTERFACE) - set_property( - TARGET protobuf::libprotoc - PROPERTY INTERFACE_INCLUDE_DIRECTORIES ${Protobuf_INCLUDE_DIR}) - set_property( - TARGET protobuf::libprotoc APPEND - PROPERTY INTERFACE_LINK_LIBRARIES ${Protobuf_PROTOC_LIBRARY} - Threads::Threads) - endif () - endif () -endif () - -if (protobuf_DEBUG) - message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] " - "ProtobufTargets_FOUND = ${ProtobufTargets_FOUND}" - " ProtobufTargets_VERSION = ${ProtobufTargets_VERSION}") -endif () - -# We also should try to find the protobuf C++ plugin for the protocol buffers -# compiler. -if (ProtobufTargets_FOUND AND NOT TARGET protobuf::protoc) - add_executable(protobuf::protoc IMPORTED) - - # Discover the protoc compiler location. - find_program( - _protobuf_PROTOC_EXECUTABLE - NAMES protoc - DOC "The Google Protocol Buffers Compiler") - if (protobuf_DEBUG) - message( - STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] " - "ProtobufTargets_FOUND = ${ProtobufTargets_FOUND}" - " ProtobufTargets_VERSION = ${ProtobufTargets_VERSION}" - " EXE = ${_protobuf_PROTOC_EXECUTABLE}") - endif () - set_property(TARGET protobuf::protoc - PROPERTY IMPORTED_LOCATION ${_protobuf_PROTOC_EXECUTABLE}) - set_property( - TARGET protobuf::protoc PROPERTY IMPORTED_LOCATION_DEBUG - ${_protobuf_PROTOC_EXECUTABLE}) - set_property( - TARGET protobuf::protoc PROPERTY IMPORTED_LOCATION_RELEASE - ${_protobuf_PROTOC_EXECUTABLE}) - unset(_protobuf_PROTOC_EXECUTABLE) - - if (protobuf_DEBUG) - get_target_property(_protobuf_PROTOC_EXECUTABLE protobuf::protoc - IMPORTED_LOCATION) - message( - STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] " - "LOCATION=${_protobuf_PROTOC_EXECUTABLE}") - endif () -endif () - -if (protobuf_DEBUG) - message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] " - "ProtobufTargets_FOUND = ${ProtobufTargets_FOUND}" - " ProtobufTargets_VERSION = ${ProtobufTargets_VERSION}") - if (ProtobufTargets_FOUND) - foreach (_target protobuf::libprotobuf protobuf::libprotobuf-lite - protobuf::libprotoc) - if (NOT TARGET ${_target}) - message( - STATUS - "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] " - "target=${_target} is NOT a target") - endif () - endforeach () - unset(_target) - endif () -endif () - -find_package_handle_standard_args(ProtobufTargets REQUIRED_VARS - ProtobufTargets_FOUND ProtobufTargets_VERSION) |