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cmake/Modules/FindProtobuf.cmake

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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 "${Protobuf_LIB_VERSION} % 1000")
set(Protobuf_VERSION "${_PROTOBUF_MAJOR_VERSION}.${_PROTOBUF_MINOR_VERSION}.${_PROTOBUF_SUBMINOR_VERSION}")
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 ${_PROTOBUF_PROTOC_EXECUTABLE_VERSION}")
endif()
# protoc version 22 and up don't print the major version any more
if(NOT "${_PROTOBUF_PROTOC_EXECUTABLE_VERSION}" VERSION_EQUAL "${Protobuf_VERSION}" AND
NOT "${_PROTOBUF_PROTOC_EXECUTABLE_VERSION}" VERSION_EQUAL "${_PROTOBUF_MINOR_VERSION}.${_PROTOBUF_SUBMINOR_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 (WIN32 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 "${Protobuf_LITE_LIBRARY_DEBUG}")
endif()
if (WIN32 AND NOT Protobuf_USE_STATIC_LIBS)
set_property(TARGET protobuf::libprotobuf-lite APPEND PROPERTY
INTERFACE_COMPILE_DEFINITIONS "PROTOBUF_USE_DLLS"
)
endif()
if(UNIX AND TARGET Threads::Threads)
set_property(TARGET protobuf::libprotobuf-lite APPEND PROPERTY
INTERFACE_LINK_LIBRARIES Threads::Threads)
endif()
endif()
endif()
if(Protobuf_PROTOC_LIBRARY)
if(NOT TARGET protobuf::libprotoc)
add_library(protobuf::libprotoc UNKNOWN IMPORTED)
set_target_properties(protobuf::libprotoc PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${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 (WIN32 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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