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CMake/Modules/FindProtobuf.cmake
Jannik Beyerstedt fc7dcc6a24 FindProtobuf: Support new version number scheme 
Protobuf changed it's version number scheme with version 21. The first number
(usually the major version) is not synchronized between compiler and library
version, but the second and third number are. See
https://protobuf.dev/news/2022-05-06/ for more details.

Fixes: #24847
2023-06-20 09:59:53 -04:00

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24 KiB
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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#[=======================================================================[.rst:
FindProtobuf
------------
Locate and configure the Google Protocol Buffers library.
.. versionadded:: 3.6
Support for :command:`find_package` version checks.
.. versionchanged:: 3.6
All input and output variables use the ``Protobuf_`` prefix.
Variables with ``PROTOBUF_`` prefix are still supported for compatibility.
The following variables can be set and are optional:
``Protobuf_SRC_ROOT_FOLDER``
When compiling with MSVC, if this cache variable is set
the protobuf-default VS project build locations
(vsprojects/Debug and vsprojects/Release
or vsprojects/x64/Debug and vsprojects/x64/Release)
will be searched for libraries and binaries.
``Protobuf_IMPORT_DIRS``
List of additional directories to be searched for
imported .proto files.
``Protobuf_DEBUG``
.. versionadded:: 3.6
Show debug messages.
``Protobuf_USE_STATIC_LIBS``
.. versionadded:: 3.9
Set to ON to force the use of the static libraries.
Default is OFF.
Defines the following variables:
``Protobuf_FOUND``
Found the Google Protocol Buffers library
(libprotobuf & header files)
``Protobuf_VERSION``
.. versionadded:: 3.6
Version of package found.
``Protobuf_INCLUDE_DIRS``
Include directories for Google Protocol Buffers
``Protobuf_LIBRARIES``
The protobuf libraries
``Protobuf_PROTOC_LIBRARIES``
The protoc libraries
``Protobuf_LITE_LIBRARIES``
The protobuf-lite libraries
.. versionadded:: 3.9
The following :prop_tgt:`IMPORTED` targets are also defined:
``protobuf::libprotobuf``
The protobuf library.
``protobuf::libprotobuf-lite``
The protobuf lite library.
``protobuf::libprotoc``
The protoc library.
``protobuf::protoc``
.. versionadded:: 3.10
The protoc compiler.
The following cache variables are also available to set or use:
``Protobuf_LIBRARY``
The protobuf library
``Protobuf_PROTOC_LIBRARY``
The protoc library
``Protobuf_INCLUDE_DIR``
The include directory for protocol buffers
``Protobuf_PROTOC_EXECUTABLE``
The protoc compiler
``Protobuf_LIBRARY_DEBUG``
The protobuf library (debug)
``Protobuf_PROTOC_LIBRARY_DEBUG``
The protoc library (debug)
``Protobuf_LITE_LIBRARY``
The protobuf lite library
``Protobuf_LITE_LIBRARY_DEBUG``
The protobuf lite library (debug)
Example:
.. code-block:: cmake
find_package(Protobuf REQUIRED)
include_directories(${Protobuf_INCLUDE_DIRS})
include_directories(${CMAKE_CURRENT_BINARY_DIR})
protobuf_generate_cpp(PROTO_SRCS PROTO_HDRS foo.proto)
protobuf_generate_cpp(PROTO_SRCS PROTO_HDRS EXPORT_MACRO DLL_EXPORT foo.proto)
protobuf_generate_cpp(PROTO_SRCS PROTO_HDRS DESCRIPTORS PROTO_DESCS foo.proto)
protobuf_generate_python(PROTO_PY foo.proto)
add_executable(bar bar.cc ${PROTO_SRCS} ${PROTO_HDRS})
target_link_libraries(bar ${Protobuf_LIBRARIES})
.. note::
The ``protobuf_generate_cpp`` and ``protobuf_generate_python``
functions and :command:`add_executable` or :command:`add_library`
calls only work properly within the same directory.
.. command:: protobuf_generate_cpp
Add custom commands to process ``.proto`` files to C++::
protobuf_generate_cpp (<SRCS> <HDRS>
[DESCRIPTORS <DESC>] [EXPORT_MACRO <MACRO>] [<ARGN>...])
``SRCS``
Variable to define with autogenerated source files
``HDRS``
Variable to define with autogenerated header files
``DESCRIPTORS``
.. versionadded:: 3.10
Variable to define with autogenerated descriptor files, if requested.
``EXPORT_MACRO``
is a macro which should expand to ``__declspec(dllexport)`` or
``__declspec(dllimport)`` depending on what is being compiled.
``ARGN``
``.proto`` files
.. command:: protobuf_generate_python
.. versionadded:: 3.4
Add custom commands to process ``.proto`` files to Python::
protobuf_generate_python (<PY> [<ARGN>...])
``PY``
Variable to define with autogenerated Python files
``ARGN``
``.proto`` files
#]=======================================================================]
function(protobuf_generate)
set(_options APPEND_PATH DESCRIPTORS)
set(_singleargs LANGUAGE OUT_VAR EXPORT_MACRO PROTOC_OUT_DIR PLUGIN)
if(COMMAND target_sources)
list(APPEND _singleargs TARGET)
endif()
set(_multiargs PROTOS IMPORT_DIRS GENERATE_EXTENSIONS)
cmake_parse_arguments(protobuf_generate "${_options}" "${_singleargs}" "${_multiargs}" "${ARGN}")
if(NOT protobuf_generate_PROTOS AND NOT protobuf_generate_TARGET)
message(SEND_ERROR "Error: protobuf_generate called without any targets or source files")
return()
endif()
if(NOT protobuf_generate_OUT_VAR AND NOT protobuf_generate_TARGET)
message(SEND_ERROR "Error: protobuf_generate called without a target or output variable")
return()
endif()
if(NOT protobuf_generate_LANGUAGE)
set(protobuf_generate_LANGUAGE cpp)
endif()
string(TOLOWER ${protobuf_generate_LANGUAGE} protobuf_generate_LANGUAGE)
if(NOT protobuf_generate_PROTOC_OUT_DIR)
set(protobuf_generate_PROTOC_OUT_DIR ${CMAKE_CURRENT_BINARY_DIR})
endif()
if(protobuf_generate_EXPORT_MACRO AND protobuf_generate_LANGUAGE STREQUAL cpp)
set(_dll_export_decl "dllexport_decl=${protobuf_generate_EXPORT_MACRO}:")
endif()
if(protobuf_generate_PLUGIN)
set(_plugin "--plugin=${protobuf_generate_PLUGIN}")
endif()
if(NOT protobuf_generate_GENERATE_EXTENSIONS)
if(protobuf_generate_LANGUAGE STREQUAL cpp)
set(protobuf_generate_GENERATE_EXTENSIONS .pb.h .pb.cc)
elseif(protobuf_generate_LANGUAGE STREQUAL python)
set(protobuf_generate_GENERATE_EXTENSIONS _pb2.py)
else()
message(SEND_ERROR "Error: protobuf_generate given unknown Language ${LANGUAGE}, please provide a value for GENERATE_EXTENSIONS")
return()
endif()
endif()
if(protobuf_generate_TARGET)
get_target_property(_source_list ${protobuf_generate_TARGET} SOURCES)
foreach(_file ${_source_list})
if(_file MATCHES "proto$")
list(APPEND protobuf_generate_PROTOS ${_file})
endif()
endforeach()
endif()
if(NOT protobuf_generate_PROTOS)
message(SEND_ERROR "Error: protobuf_generate could not find any .proto files")
return()
endif()
if(protobuf_generate_APPEND_PATH)
# Create an include path for each file specified
foreach(_file ${protobuf_generate_PROTOS})
get_filename_component(_abs_file ${_file} ABSOLUTE)
get_filename_component(_abs_path ${_abs_file} PATH)
list(FIND _protobuf_include_path ${_abs_path} _contains_already)
if(${_contains_already} EQUAL -1)
list(APPEND _protobuf_include_path -I ${_abs_path})
endif()
endforeach()
else()
set(_protobuf_include_path -I ${CMAKE_CURRENT_SOURCE_DIR})
endif()
foreach(DIR ${protobuf_generate_IMPORT_DIRS})
get_filename_component(ABS_PATH ${DIR} ABSOLUTE)
list(FIND _protobuf_include_path ${ABS_PATH} _contains_already)
if(${_contains_already} EQUAL -1)
list(APPEND _protobuf_include_path -I ${ABS_PATH})
endif()
endforeach()
set(_generated_srcs_all)
foreach(_proto ${protobuf_generate_PROTOS})
get_filename_component(_abs_file ${_proto} ABSOLUTE)
get_filename_component(_abs_dir ${_abs_file} DIRECTORY)
get_filename_component(_basename ${_proto} NAME_WLE)
file(RELATIVE_PATH _rel_dir ${CMAKE_CURRENT_SOURCE_DIR} ${_abs_dir})
set(_possible_rel_dir)
if (NOT protobuf_generate_APPEND_PATH)
set(_possible_rel_dir ${_rel_dir}/)
endif()
set(_generated_srcs)
foreach(_ext ${protobuf_generate_GENERATE_EXTENSIONS})
list(APPEND _generated_srcs "${protobuf_generate_PROTOC_OUT_DIR}/${_possible_rel_dir}${_basename}${_ext}")
endforeach()
if(protobuf_generate_DESCRIPTORS AND protobuf_generate_LANGUAGE STREQUAL cpp)
set(_descriptor_file "${CMAKE_CURRENT_BINARY_DIR}/${_basename}.desc")
set(_dll_desc_out "--descriptor_set_out=${_descriptor_file}")
list(APPEND _generated_srcs ${_descriptor_file})
endif()
list(APPEND _generated_srcs_all ${_generated_srcs})
add_custom_command(
OUTPUT ${_generated_srcs}
COMMAND protobuf::protoc
ARGS --${protobuf_generate_LANGUAGE}_out ${_dll_export_decl}${protobuf_generate_PROTOC_OUT_DIR} ${_plugin} ${_dll_desc_out} ${_protobuf_include_path} ${_abs_file}
DEPENDS ${_abs_file} protobuf::protoc
COMMENT "Running ${protobuf_generate_LANGUAGE} protocol buffer compiler on ${_proto}"
VERBATIM )
endforeach()
set_source_files_properties(${_generated_srcs_all} PROPERTIES GENERATED TRUE)
if(protobuf_generate_OUT_VAR)
set(${protobuf_generate_OUT_VAR} ${_generated_srcs_all} PARENT_SCOPE)
endif()
if(protobuf_generate_TARGET)
target_sources(${protobuf_generate_TARGET} PRIVATE ${_generated_srcs_all})
endif()
endfunction()
function(PROTOBUF_GENERATE_CPP SRCS HDRS)
cmake_parse_arguments(protobuf_generate_cpp "" "EXPORT_MACRO;DESCRIPTORS" "" ${ARGN})
set(_proto_files "${protobuf_generate_cpp_UNPARSED_ARGUMENTS}")
if(NOT _proto_files)
message(SEND_ERROR "Error: PROTOBUF_GENERATE_CPP() called without any proto files")
return()
endif()
if(PROTOBUF_GENERATE_CPP_APPEND_PATH)
set(_append_arg APPEND_PATH)
endif()
if(protobuf_generate_cpp_DESCRIPTORS)
set(_descriptors DESCRIPTORS)
endif()
if(DEFINED PROTOBUF_IMPORT_DIRS AND NOT DEFINED Protobuf_IMPORT_DIRS)
set(Protobuf_IMPORT_DIRS "${PROTOBUF_IMPORT_DIRS}")
endif()
if(DEFINED Protobuf_IMPORT_DIRS)
set(_import_arg IMPORT_DIRS ${Protobuf_IMPORT_DIRS})
endif()
set(_outvar)
protobuf_generate(${_append_arg} ${_descriptors} LANGUAGE cpp EXPORT_MACRO ${protobuf_generate_cpp_EXPORT_MACRO} OUT_VAR _outvar ${_import_arg} PROTOS ${_proto_files})
set(${SRCS})
set(${HDRS})
if(protobuf_generate_cpp_DESCRIPTORS)
set(${protobuf_generate_cpp_DESCRIPTORS})
endif()
foreach(_file ${_outvar})
if(_file MATCHES "cc$")
list(APPEND ${SRCS} ${_file})
elseif(_file MATCHES "desc$")
list(APPEND ${protobuf_generate_cpp_DESCRIPTORS} ${_file})
else()
list(APPEND ${HDRS} ${_file})
endif()
endforeach()
set(${SRCS} ${${SRCS}} PARENT_SCOPE)
set(${HDRS} ${${HDRS}} PARENT_SCOPE)
if(protobuf_generate_cpp_DESCRIPTORS)
set(${protobuf_generate_cpp_DESCRIPTORS} "${${protobuf_generate_cpp_DESCRIPTORS}}" PARENT_SCOPE)
endif()
endfunction()
function(PROTOBUF_GENERATE_PYTHON SRCS)
if(NOT ARGN)
message(SEND_ERROR "Error: PROTOBUF_GENERATE_PYTHON() called without any proto files")
return()
endif()
if(PROTOBUF_GENERATE_CPP_APPEND_PATH)
set(_append_arg APPEND_PATH)
endif()
if(DEFINED PROTOBUF_IMPORT_DIRS AND NOT DEFINED Protobuf_IMPORT_DIRS)
set(Protobuf_IMPORT_DIRS "${PROTOBUF_IMPORT_DIRS}")
endif()
if(DEFINED Protobuf_IMPORT_DIRS)
set(_import_arg IMPORT_DIRS ${Protobuf_IMPORT_DIRS})
endif()
set(_outvar)
protobuf_generate(${_append_arg} LANGUAGE python OUT_VAR _outvar ${_import_arg} PROTOS ${ARGN})
set(${SRCS} ${_outvar} PARENT_SCOPE)
endfunction()
if(Protobuf_DEBUG)
# Output some of their choices
message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
"Protobuf_USE_STATIC_LIBS = ${Protobuf_USE_STATIC_LIBS}")
endif()
# Backwards compatibility
# Define camel case versions of input variables
foreach(UPPER
PROTOBUF_SRC_ROOT_FOLDER
PROTOBUF_IMPORT_DIRS
PROTOBUF_DEBUG
PROTOBUF_LIBRARY
PROTOBUF_PROTOC_LIBRARY
PROTOBUF_INCLUDE_DIR
PROTOBUF_PROTOC_EXECUTABLE
PROTOBUF_LIBRARY_DEBUG
PROTOBUF_PROTOC_LIBRARY_DEBUG
PROTOBUF_LITE_LIBRARY
PROTOBUF_LITE_LIBRARY_DEBUG
)
if (DEFINED ${UPPER})
string(REPLACE "PROTOBUF_" "Protobuf_" Camel ${UPPER})
if (NOT DEFINED ${Camel})
set(${Camel} ${${UPPER}})
endif()
endif()
endforeach()
if(CMAKE_SIZEOF_VOID_P EQUAL 8)
set(_PROTOBUF_ARCH_DIR x64/)
endif()
# Support preference of static libs by adjusting CMAKE_FIND_LIBRARY_SUFFIXES
if( Protobuf_USE_STATIC_LIBS )
set( _protobuf_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
if(WIN32)
set(CMAKE_FIND_LIBRARY_SUFFIXES .lib .a ${CMAKE_FIND_LIBRARY_SUFFIXES})
else()
set(CMAKE_FIND_LIBRARY_SUFFIXES .a )
endif()
endif()
include(${CMAKE_CURRENT_LIST_DIR}/SelectLibraryConfigurations.cmake)
# Internal function: search for normal library as well as a debug one
# if the debug one is specified also include debug/optimized keywords
# in *_LIBRARIES variable
function(_protobuf_find_libraries name filename)
if(${name}_LIBRARIES)
# Use result recorded by a previous call.
return()
elseif(${name}_LIBRARY)
# Honor cache entry used by CMake 3.5 and lower.
set(${name}_LIBRARIES "${${name}_LIBRARY}" PARENT_SCOPE)
else()
find_library(${name}_LIBRARY_RELEASE
NAMES ${filename}
NAMES_PER_DIR
PATHS ${Protobuf_SRC_ROOT_FOLDER}/vsprojects/${_PROTOBUF_ARCH_DIR}Release)
mark_as_advanced(${name}_LIBRARY_RELEASE)
find_library(${name}_LIBRARY_DEBUG
NAMES ${filename}d ${filename}
NAMES_PER_DIR
PATHS ${Protobuf_SRC_ROOT_FOLDER}/vsprojects/${_PROTOBUF_ARCH_DIR}Debug)
mark_as_advanced(${name}_LIBRARY_DEBUG)
select_library_configurations(${name})
if(UNIX AND Threads_FOUND AND ${name}_LIBRARY)
list(APPEND ${name}_LIBRARIES ${CMAKE_THREAD_LIBS_INIT})
endif()
set(${name}_LIBRARY "${${name}_LIBRARY}" PARENT_SCOPE)
set(${name}_LIBRARIES "${${name}_LIBRARIES}" PARENT_SCOPE)
endif()
endfunction()
#
# Main.
#
# By default have PROTOBUF_GENERATE_CPP macro pass -I to protoc
# for each directory where a proto file is referenced.
if(NOT DEFINED PROTOBUF_GENERATE_CPP_APPEND_PATH)
set(PROTOBUF_GENERATE_CPP_APPEND_PATH TRUE)
endif()
# Google's provided vcproj files generate libraries with a "lib"
# prefix on Windows
if(MSVC)
set(Protobuf_ORIG_FIND_LIBRARY_PREFIXES "${CMAKE_FIND_LIBRARY_PREFIXES}")
set(CMAKE_FIND_LIBRARY_PREFIXES "lib" "")
find_path(Protobuf_SRC_ROOT_FOLDER protobuf.pc.in)
endif()
if(UNIX)
# Protobuf headers may depend on threading.
find_package(Threads QUIET)
endif()
# The Protobuf library
_protobuf_find_libraries(Protobuf protobuf)
#DOC "The Google Protocol Buffers RELEASE Library"
_protobuf_find_libraries(Protobuf_LITE protobuf-lite)
# The Protobuf Protoc Library
_protobuf_find_libraries(Protobuf_PROTOC protoc)
# Restore original find library prefixes
if(MSVC)
set(CMAKE_FIND_LIBRARY_PREFIXES "${Protobuf_ORIG_FIND_LIBRARY_PREFIXES}")
endif()
# Find the include directory
find_path(Protobuf_INCLUDE_DIR
google/protobuf/service.h
PATHS ${Protobuf_SRC_ROOT_FOLDER}/src
)
mark_as_advanced(Protobuf_INCLUDE_DIR)
# Find the protoc Executable
find_program(Protobuf_PROTOC_EXECUTABLE
NAMES protoc
DOC "The Google Protocol Buffers Compiler"
PATHS
${Protobuf_SRC_ROOT_FOLDER}/vsprojects/${_PROTOBUF_ARCH_DIR}Release
${Protobuf_SRC_ROOT_FOLDER}/vsprojects/${_PROTOBUF_ARCH_DIR}Debug
)
mark_as_advanced(Protobuf_PROTOC_EXECUTABLE)
if(Protobuf_DEBUG)
message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
"requested version of Google Protobuf is ${Protobuf_FIND_VERSION}")
endif()
if(Protobuf_INCLUDE_DIR)
set(_PROTOBUF_COMMON_HEADER ${Protobuf_INCLUDE_DIR}/google/protobuf/stubs/common.h)
if(Protobuf_DEBUG)
message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
"location of common.h: ${_PROTOBUF_COMMON_HEADER}")
endif()
set(Protobuf_VERSION "")
set(Protobuf_LIB_VERSION "")
file(STRINGS ${_PROTOBUF_COMMON_HEADER} _PROTOBUF_COMMON_H_CONTENTS REGEX "#define[ \t]+GOOGLE_PROTOBUF_VERSION[ \t]+")
if(_PROTOBUF_COMMON_H_CONTENTS MATCHES "#define[ \t]+GOOGLE_PROTOBUF_VERSION[ \t]+([0-9]+)")
set(Protobuf_LIB_VERSION "${CMAKE_MATCH_1}")
endif()
unset(_PROTOBUF_COMMON_H_CONTENTS)
math(EXPR _PROTOBUF_MAJOR_VERSION "${Protobuf_LIB_VERSION} / 1000000")
math(EXPR _PROTOBUF_MINOR_VERSION "${Protobuf_LIB_VERSION} / 1000 % 1000")
math(EXPR _PROTOBUF_SUBMINOR_VERSION "${Protobuf_LIB_VERSION} % 1000")
if (_PROTOBUF_MINOR_VERSION GREATER_EQUAL "21")
set(Protobuf_VERSION "${_PROTOBUF_MINOR_VERSION}.${_PROTOBUF_SUBMINOR_VERSION}")
else()
set(Protobuf_VERSION "${_PROTOBUF_MAJOR_VERSION}.${_PROTOBUF_MINOR_VERSION}.${_PROTOBUF_SUBMINOR_VERSION}")
endif()
if(Protobuf_DEBUG)
message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
"${_PROTOBUF_COMMON_HEADER} reveals protobuf ${Protobuf_VERSION}")
endif()
if(Protobuf_PROTOC_EXECUTABLE)
# Check Protobuf compiler version to be aligned with libraries version
execute_process(COMMAND ${Protobuf_PROTOC_EXECUTABLE} --version
OUTPUT_VARIABLE _PROTOBUF_PROTOC_EXECUTABLE_VERSION)
if("${_PROTOBUF_PROTOC_EXECUTABLE_VERSION}" MATCHES "libprotoc ([0-9.]+)")
set(_PROTOBUF_PROTOC_EXECUTABLE_VERSION "${CMAKE_MATCH_1}")
endif()
if(Protobuf_DEBUG)
message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
"${Protobuf_PROTOC_EXECUTABLE} reveals version ${_PROTOBUF_PROTOC_EXECUTABLE_VERSION}")
endif()
if(NOT "${_PROTOBUF_PROTOC_EXECUTABLE_VERSION}" VERSION_EQUAL "${Protobuf_VERSION}")
message(WARNING "Protobuf compiler version ${_PROTOBUF_PROTOC_EXECUTABLE_VERSION}"
" doesn't match library version ${Protobuf_VERSION}")
endif()
endif()
if(Protobuf_LIBRARY)
if(NOT TARGET protobuf::libprotobuf)
add_library(protobuf::libprotobuf UNKNOWN IMPORTED)
set_target_properties(protobuf::libprotobuf PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${Protobuf_INCLUDE_DIR}")
if(EXISTS "${Protobuf_LIBRARY}")
set_target_properties(protobuf::libprotobuf PROPERTIES
IMPORTED_LOCATION "${Protobuf_LIBRARY}")
endif()
if(EXISTS "${Protobuf_LIBRARY_RELEASE}")
set_property(TARGET protobuf::libprotobuf APPEND PROPERTY
IMPORTED_CONFIGURATIONS RELEASE)
set_target_properties(protobuf::libprotobuf PROPERTIES
IMPORTED_LOCATION_RELEASE "${Protobuf_LIBRARY_RELEASE}")
endif()
if(EXISTS "${Protobuf_LIBRARY_DEBUG}")
set_property(TARGET protobuf::libprotobuf APPEND PROPERTY
IMPORTED_CONFIGURATIONS DEBUG)
set_target_properties(protobuf::libprotobuf PROPERTIES
IMPORTED_LOCATION_DEBUG "${Protobuf_LIBRARY_DEBUG}")
endif()
if (Protobuf_VERSION VERSION_GREATER_EQUAL "3.6")
set_property(TARGET protobuf::libprotobuf APPEND PROPERTY
INTERFACE_COMPILE_FEATURES cxx_std_11
)
endif()
if (MSVC AND NOT Protobuf_USE_STATIC_LIBS)
set_property(TARGET protobuf::libprotobuf APPEND PROPERTY
INTERFACE_COMPILE_DEFINITIONS "PROTOBUF_USE_DLLS"
)
endif()
if(UNIX AND TARGET Threads::Threads)
set_property(TARGET protobuf::libprotobuf APPEND PROPERTY
INTERFACE_LINK_LIBRARIES Threads::Threads)
endif()
endif()
endif()
if(Protobuf_LITE_LIBRARY)
if(NOT TARGET protobuf::libprotobuf-lite)
add_library(protobuf::libprotobuf-lite UNKNOWN IMPORTED)
set_target_properties(protobuf::libprotobuf-lite PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${Protobuf_INCLUDE_DIR}")
if(EXISTS "${Protobuf_LITE_LIBRARY}")
set_target_properties(protobuf::libprotobuf-lite PROPERTIES
IMPORTED_LOCATION "${Protobuf_LITE_LIBRARY}")
endif()
if(EXISTS "${Protobuf_LITE_LIBRARY_RELEASE}")
set_property(TARGET protobuf::libprotobuf-lite APPEND PROPERTY
IMPORTED_CONFIGURATIONS RELEASE)
set_target_properties(protobuf::libprotobuf-lite PROPERTIES
IMPORTED_LOCATION_RELEASE "${Protobuf_LITE_LIBRARY_RELEASE}")
endif()
if(EXISTS "${Protobuf_LITE_LIBRARY_DEBUG}")
set_property(TARGET protobuf::libprotobuf-lite APPEND PROPERTY
IMPORTED_CONFIGURATIONS DEBUG)
set_target_properties(protobuf::libprotobuf-lite PROPERTIES
IMPORTED_LOCATION_DEBUG "${Protobuf_LITE_LIBRARY_DEBUG}")
endif()
if (MSVC AND NOT Protobuf_USE_STATIC_LIBS)
set_property(TARGET protobuf::libprotobuf-lite APPEND PROPERTY
INTERFACE_COMPILE_DEFINITIONS "PROTOBUF_USE_DLLS"
)
endif()
if(UNIX AND TARGET Threads::Threads)
set_property(TARGET protobuf::libprotobuf-lite APPEND PROPERTY
INTERFACE_LINK_LIBRARIES Threads::Threads)
endif()
endif()
endif()
if(Protobuf_PROTOC_LIBRARY)
if(NOT TARGET protobuf::libprotoc)
add_library(protobuf::libprotoc UNKNOWN IMPORTED)
set_target_properties(protobuf::libprotoc PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${Protobuf_INCLUDE_DIR}")
if(EXISTS "${Protobuf_PROTOC_LIBRARY}")
set_target_properties(protobuf::libprotoc PROPERTIES
IMPORTED_LOCATION "${Protobuf_PROTOC_LIBRARY}")
endif()
if(EXISTS "${Protobuf_PROTOC_LIBRARY_RELEASE}")
set_property(TARGET protobuf::libprotoc APPEND PROPERTY
IMPORTED_CONFIGURATIONS RELEASE)
set_target_properties(protobuf::libprotoc PROPERTIES
IMPORTED_LOCATION_RELEASE "${Protobuf_PROTOC_LIBRARY_RELEASE}")
endif()
if(EXISTS "${Protobuf_PROTOC_LIBRARY_DEBUG}")
set_property(TARGET protobuf::libprotoc APPEND PROPERTY
IMPORTED_CONFIGURATIONS DEBUG)
set_target_properties(protobuf::libprotoc PROPERTIES
IMPORTED_LOCATION_DEBUG "${Protobuf_PROTOC_LIBRARY_DEBUG}")
endif()
if (Protobuf_VERSION VERSION_GREATER_EQUAL "3.6")
set_property(TARGET protobuf::libprotoc APPEND PROPERTY
INTERFACE_COMPILE_FEATURES cxx_std_11
)
endif()
if (MSVC AND NOT Protobuf_USE_STATIC_LIBS)
set_property(TARGET protobuf::libprotoc APPEND PROPERTY
INTERFACE_COMPILE_DEFINITIONS "PROTOBUF_USE_DLLS"
)
endif()
if(UNIX AND TARGET Threads::Threads)
set_property(TARGET protobuf::libprotoc APPEND PROPERTY
INTERFACE_LINK_LIBRARIES Threads::Threads)
endif()
endif()
endif()
if(Protobuf_PROTOC_EXECUTABLE)
if(NOT TARGET protobuf::protoc)
add_executable(protobuf::protoc IMPORTED)
if(EXISTS "${Protobuf_PROTOC_EXECUTABLE}")
set_target_properties(protobuf::protoc PROPERTIES
IMPORTED_LOCATION "${Protobuf_PROTOC_EXECUTABLE}")
endif()
endif()
endif()
endif()
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(Protobuf
REQUIRED_VARS Protobuf_LIBRARIES Protobuf_INCLUDE_DIR
VERSION_VAR Protobuf_VERSION
)
if(Protobuf_FOUND)
set(Protobuf_INCLUDE_DIRS ${Protobuf_INCLUDE_DIR})
endif()
# Restore the original find library ordering
if( Protobuf_USE_STATIC_LIBS )
set(CMAKE_FIND_LIBRARY_SUFFIXES ${_protobuf_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES})
endif()
# Backwards compatibility
# Define upper case versions of output variables
foreach(Camel
Protobuf_SRC_ROOT_FOLDER
Protobuf_IMPORT_DIRS
Protobuf_DEBUG
Protobuf_INCLUDE_DIRS
Protobuf_LIBRARIES
Protobuf_PROTOC_LIBRARIES
Protobuf_LITE_LIBRARIES
Protobuf_LIBRARY
Protobuf_PROTOC_LIBRARY
Protobuf_INCLUDE_DIR
Protobuf_PROTOC_EXECUTABLE
Protobuf_LIBRARY_DEBUG
Protobuf_PROTOC_LIBRARY_DEBUG
Protobuf_LITE_LIBRARY
Protobuf_LITE_LIBRARY_DEBUG
)
string(TOUPPER ${Camel} UPPER)
set(${UPPER} ${${Camel}})
endforeach()
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