[ceph.git] / ceph / src / seastar / cmake / FindProtobuf.cmake

# 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.
#
# 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``
#   Show debug messages.
# ``Protobuf_USE_STATIC_LIBS``
#   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``
#   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
#
# 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``
#   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``
#     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
#
#   Add custom commands to process ``.proto`` files to Python::
#
#     protobuf_generate_python (<PY> [<ARGN>...])
#
#   ``PY``
#     Variable to define with autogenerated Python files
#   ``ARGN``
#     ``.proto`` filess

function(PROTOBUF_GENERATE_CPP SRCS HDRS)
  cmake_parse_arguments(protobuf "" "EXPORT_MACRO;DESCRIPTORS" "" ${ARGN})

  set(PROTO_FILES "${protobuf_UNPARSED_ARGUMENTS}")
  if(NOT PROTO_FILES)
    message(SEND_ERROR "Error: PROTOBUF_GENERATE_CPP() called without any proto files")
    return()
  endif()

  if(protobuf_EXPORT_MACRO)
    set(DLL_EXPORT_DECL "dllexport_decl=${protobuf_EXPORT_MACRO}:")
  endif()

  if(PROTOBUF_GENERATE_CPP_APPEND_PATH)
    # Create an include path for each file specified
    foreach(FIL ${PROTO_FILES})
      get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
      get_filename_component(ABS_PATH ${ABS_FIL} 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()

  if(DEFINED PROTOBUF_IMPORT_DIRS AND NOT DEFINED Protobuf_IMPORT_DIRS)
    set(Protobuf_IMPORT_DIRS "${PROTOBUF_IMPORT_DIRS}")
  endif()

  if(DEFINED Protobuf_IMPORT_DIRS)
    foreach(DIR ${Protobuf_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()
  endif()

  set(${SRCS})
  set(${HDRS})
  if (protobuf_DESCRIPTORS)
    set(${protobuf_DESCRIPTORS})
  endif()

  foreach(FIL ${PROTO_FILES})
    get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
    get_filename_component(FIL_WE ${FIL} NAME_WE)
    if(NOT PROTOBUF_GENERATE_CPP_APPEND_PATH)
      get_filename_component(FIL_DIR ${FIL} DIRECTORY)
      if(FIL_DIR)
        set(FIL_WE "${FIL_DIR}/${FIL_WE}")
      endif()
    endif()

    set(_protobuf_protoc_src "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.cc")
    set(_protobuf_protoc_hdr "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h")
    list(APPEND ${SRCS} "${_protobuf_protoc_src}")
    list(APPEND ${HDRS} "${_protobuf_protoc_hdr}")

    if(protobuf_DESCRIPTORS)
      set(_protobuf_protoc_desc "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.desc")
      set(_protobuf_protoc_flags "--descriptor_set_out=${_protobuf_protoc_desc}")
      list(APPEND ${protobuf_DESCRIPTORS} "${_protobuf_protoc_desc}")
    else()
      set(_protobuf_protoc_desc "")
      set(_protobuf_protoc_flags "")
    endif()

    add_custom_command(
      OUTPUT "${_protobuf_protoc_src}"
             "${_protobuf_protoc_hdr}"
             ${_protobuf_protoc_desc}
      COMMAND  protobuf::protoc
               "--cpp_out=${DLL_EXPORT_DECL}${CMAKE_CURRENT_BINARY_DIR}"
               ${_protobuf_protoc_flags}
               ${_protobuf_include_path} ${ABS_FIL}
      DEPENDS ${ABS_FIL} protobuf::protoc
      COMMENT "Running C++ protocol buffer compiler on ${FIL}"
      VERBATIM )
  endforeach()

  set(${SRCS} "${${SRCS}}" PARENT_SCOPE)
  set(${HDRS} "${${HDRS}}" PARENT_SCOPE)
  if(protobuf_DESCRIPTORS)
    set(${protobuf_DESCRIPTORS} "${${protobuf_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)
    # Create an include path for each file specified
    foreach(FIL ${ARGN})
      get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
      get_filename_component(ABS_PATH ${ABS_FIL} 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()

  if(DEFINED PROTOBUF_IMPORT_DIRS AND NOT DEFINED Protobuf_IMPORT_DIRS)
    set(Protobuf_IMPORT_DIRS "${PROTOBUF_IMPORT_DIRS}")
  endif()

  if(DEFINED Protobuf_IMPORT_DIRS)
    foreach(DIR ${Protobuf_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()
  endif()

  set(${SRCS})
  foreach(FIL ${ARGN})
    get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
    get_filename_component(FIL_WE ${FIL} NAME_WE)
    if(NOT PROTOBUF_GENERATE_CPP_APPEND_PATH)
      get_filename_component(FIL_DIR ${FIL} DIRECTORY)
      if(FIL_DIR)
        set(FIL_WE "${FIL_DIR}/${FIL_WE}")
      endif()
    endif()

    list(APPEND ${SRCS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}_pb2.py")
    add_custom_command(
      OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}_pb2.py"
      COMMAND  protobuf::protoc --python_out ${CMAKE_CURRENT_BINARY_DIR} ${_protobuf_include_path} ${ABS_FIL}
      DEPENDS ${ABS_FIL} protobuf::protoc
      COMMENT "Running Python protocol buffer compiler on ${FIL}"
      VERBATIM )
  endforeach()

  set(${SRCS} ${${SRCS}} 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(SelectLibraryConfigurations)

# 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}
      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}
      PATHS ${Protobuf_SRC_ROOT_FOLDER}/vsprojects/${_PROTOBUF_ARCH_DIR}Debug)
    mark_as_advanced(${name}_LIBRARY_DEBUG)

    select_library_configurations(${name})
    set(${name}_LIBRARY "${${name}_LIBRARY}" PARENT_SCOPE)
    set(${name}_LIBRARIES "${${name}_LIBRARIES}" PARENT_SCOPE)
  endif()
endfunction()

# Internal function: find threads library
function(_protobuf_find_threads)
    set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
    find_package(Threads)
    if(Threads_FOUND)
        list(APPEND Protobuf_LIBRARIES ${CMAKE_THREAD_LIBS_INIT})
        set(Protobuf_LIBRARIES "${Protobuf_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()

# 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()

if(UNIX)
    _protobuf_find_threads()
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()

  # 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()

  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()
      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()
      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()
      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(FindPackageHandleStandardArgs)
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()
Commit	Line	Data
11fdf7f2 TL	1	# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
	2	# file Copyright.txt or https://cmake.org/licensing for details.
	3
	4	#.rst:
	5	# FindProtobuf
	6	# ------------
	7	#
	8	# Locate and configure the Google Protocol Buffers library.
	9	#
	10	# The following variables can be set and are optional:
	11	#
	12	# ``Protobuf_SRC_ROOT_FOLDER``
	13	# When compiling with MSVC, if this cache variable is set
	14	# the protobuf-default VS project build locations
	15	# (vsprojects/Debug and vsprojects/Release
	16	# or vsprojects/x64/Debug and vsprojects/x64/Release)
	17	# will be searched for libraries and binaries.
	18	# ``Protobuf_IMPORT_DIRS``
	19	# List of additional directories to be searched for
	20	# imported .proto files.
	21	# ``Protobuf_DEBUG``
	22	# Show debug messages.
	23	# ``Protobuf_USE_STATIC_LIBS``
	24	# Set to ON to force the use of the static libraries.
	25	# Default is OFF.
	26	#
	27	# Defines the following variables:
	28	#
	29	# ``Protobuf_FOUND``
	30	# Found the Google Protocol Buffers library
	31	# (libprotobuf & header files)
	32	# ``Protobuf_VERSION``
	33	# Version of package found.
	34	# ``Protobuf_INCLUDE_DIRS``
	35	# Include directories for Google Protocol Buffers
	36	# ``Protobuf_LIBRARIES``
	37	# The protobuf libraries
	38	# ``Protobuf_PROTOC_LIBRARIES``
	39	# The protoc libraries
	40	# ``Protobuf_LITE_LIBRARIES``
	41	# The protobuf-lite libraries
	42	#
	43	# The following :prop_tgt:`IMPORTED` targets are also defined:
	44	#
	45	# ``protobuf::libprotobuf``
	46	# The protobuf library.
	47	# ``protobuf::libprotobuf-lite``
	48	# The protobuf lite library.
	49	# ``protobuf::libprotoc``
	50	# The protoc library.
	51	# ``protobuf::protoc``
	52	# The protoc compiler.
	53	#
	54	# The following cache variables are also available to set or use:
	55	#
	56	# ``Protobuf_LIBRARY``
	57	# The protobuf library
	58	# ``Protobuf_PROTOC_LIBRARY``
	59	# The protoc library
	60	# ``Protobuf_INCLUDE_DIR``
	61	# The include directory for protocol buffers
	62	# ``Protobuf_PROTOC_EXECUTABLE``
	63	# The protoc compiler
	64	# ``Protobuf_LIBRARY_DEBUG``
65	# The protobuf library (debug)
66	# ``Protobuf_PROTOC_LIBRARY_DEBUG``
67	# The protoc library (debug)
68	# ``Protobuf_LITE_LIBRARY``
69	# The protobuf lite library
70	# ``Protobuf_LITE_LIBRARY_DEBUG``
71	# The protobuf lite library (debug)
72	#
73	# Example:
74	#
75	# .. code-block:: cmake
76	#
77	# find_package(Protobuf REQUIRED)
78	# include_directories(${Protobuf_INCLUDE_DIRS})
79	# include_directories(${CMAKE_CURRENT_BINARY_DIR})
80	# protobuf_generate_cpp(PROTO_SRCS PROTO_HDRS foo.proto)
81	# protobuf_generate_cpp(PROTO_SRCS PROTO_HDRS EXPORT_MACRO DLL_EXPORT foo.proto)
82	# protobuf_generate_cpp(PROTO_SRCS PROTO_HDRS DESCRIPTORS PROTO_DESCS foo.proto)
83	# protobuf_generate_python(PROTO_PY foo.proto)
84	# add_executable(bar bar.cc ${PROTO_SRCS} ${PROTO_HDRS})
85	# target_link_libraries(bar ${Protobuf_LIBRARIES})
86	#
87	# .. note::
88	# The ``protobuf_generate_cpp`` and ``protobuf_generate_python``
89	# functions and :command:`add_executable` or :command:`add_library`
90	# calls only work properly within the same directory.
91	#
92	# .. command:: protobuf_generate_cpp
93	#
94	# Add custom commands to process ``.proto`` files to C++::
95	#
96	# protobuf_generate_cpp (<SRCS> <HDRS>
97	# [DESCRIPTORS <DESC>] [EXPORT_MACRO <MACRO>] [<ARGN>...])
98	#
99	# ``SRCS``
100	# Variable to define with autogenerated source files
101	# ``HDRS``
102	# Variable to define with autogenerated header files
103	# ``DESCRIPTORS``
104	# Variable to define with autogenerated descriptor files, if requested.
105	# ``EXPORT_MACRO``
106	# is a macro which should expand to ``__declspec(dllexport)`` or
107	# ``__declspec(dllimport)`` depending on what is being compiled.
108	# ``ARGN``
109	# ``.proto`` files
110	#
111	# .. command:: protobuf_generate_python
112	#
113	# Add custom commands to process ``.proto`` files to Python::
114	#
115	# protobuf_generate_python (<PY> [<ARGN>...])
116	#
117	# ``PY``
118	# Variable to define with autogenerated Python files
119	# ``ARGN``
120	# ``.proto`` filess
121
122	function(PROTOBUF_GENERATE_CPP SRCS HDRS)
123	cmake_parse_arguments(protobuf "" "EXPORT_MACRO;DESCRIPTORS" "" ${ARGN})
124
125	set(PROTO_FILES "${protobuf_UNPARSED_ARGUMENTS}")
126	if(NOT PROTO_FILES)
127	message(SEND_ERROR "Error: PROTOBUF_GENERATE_CPP() called without any proto files")
128	return()
129	endif()
130
131	if(protobuf_EXPORT_MACRO)
132	set(DLL_EXPORT_DECL "dllexport_decl=${protobuf_EXPORT_MACRO}:")
133	endif()
134
135	if(PROTOBUF_GENERATE_CPP_APPEND_PATH)
136	# Create an include path for each file specified
137	foreach(FIL ${PROTO_FILES})
138	get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
139	get_filename_component(ABS_PATH ${ABS_FIL} PATH)
140	list(FIND _protobuf_include_path ${ABS_PATH} _contains_already)
141	if(${_contains_already} EQUAL -1)
142	list(APPEND _protobuf_include_path -I ${ABS_PATH})
143	endif()
144	endforeach()
145	else()
146	set(_protobuf_include_path -I ${CMAKE_CURRENT_SOURCE_DIR})
147	endif()
148
149	if(DEFINED PROTOBUF_IMPORT_DIRS AND NOT DEFINED Protobuf_IMPORT_DIRS)
150	set(Protobuf_IMPORT_DIRS "${PROTOBUF_IMPORT_DIRS}")
151	endif()
152
153	if(DEFINED Protobuf_IMPORT_DIRS)
154	foreach(DIR ${Protobuf_IMPORT_DIRS})
155	get_filename_component(ABS_PATH ${DIR} ABSOLUTE)
156	list(FIND _protobuf_include_path ${ABS_PATH} _contains_already)
157	if(${_contains_already} EQUAL -1)
158	list(APPEND _protobuf_include_path -I ${ABS_PATH})
159	endif()
160	endforeach()
161	endif()
162
163	set(${SRCS})
164	set(${HDRS})
165	if (protobuf_DESCRIPTORS)
166	set(${protobuf_DESCRIPTORS})
167	endif()
168
169	foreach(FIL ${PROTO_FILES})
170	get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
171	get_filename_component(FIL_WE ${FIL} NAME_WE)
172	if(NOT PROTOBUF_GENERATE_CPP_APPEND_PATH)
173	get_filename_component(FIL_DIR ${FIL} DIRECTORY)
174	if(FIL_DIR)
175	set(FIL_WE "${FIL_DIR}/${FIL_WE}")
176	endif()
177	endif()
178
179	set(_protobuf_protoc_src "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.cc")
180	set(_protobuf_protoc_hdr "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h")
181	list(APPEND ${SRCS} "${_protobuf_protoc_src}")
182	list(APPEND ${HDRS} "${_protobuf_protoc_hdr}")
183
184	if(protobuf_DESCRIPTORS)
185	set(_protobuf_protoc_desc "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.desc")
186	set(_protobuf_protoc_flags "--descriptor_set_out=${_protobuf_protoc_desc}")
187	list(APPEND ${protobuf_DESCRIPTORS} "${_protobuf_protoc_desc}")
188	else()
189	set(_protobuf_protoc_desc "")
190	set(_protobuf_protoc_flags "")
191	endif()
192
193	add_custom_command(
194	OUTPUT "${_protobuf_protoc_src}"
195	"${_protobuf_protoc_hdr}"
196	${_protobuf_protoc_desc}
197	COMMAND protobuf::protoc
198	"--cpp_out=${DLL_EXPORT_DECL}${CMAKE_CURRENT_BINARY_DIR}"
199	${_protobuf_protoc_flags}
200	${_protobuf_include_path} ${ABS_FIL}
201	DEPENDS ${ABS_FIL} protobuf::protoc
202	COMMENT "Running C++ protocol buffer compiler on ${FIL}"
203	VERBATIM )
204	endforeach()
205
206	set(${SRCS} "${${SRCS}}" PARENT_SCOPE)
207	set(${HDRS} "${${HDRS}}" PARENT_SCOPE)
208	if(protobuf_DESCRIPTORS)
209	set(${protobuf_DESCRIPTORS} "${${protobuf_DESCRIPTORS}}" PARENT_SCOPE)
210	endif()
211	endfunction()
212
213	function(PROTOBUF_GENERATE_PYTHON SRCS)
214	if(NOT ARGN)
215	message(SEND_ERROR "Error: PROTOBUF_GENERATE_PYTHON() called without any proto files")
216	return()
217	endif()
218
219	if(PROTOBUF_GENERATE_CPP_APPEND_PATH)
220	# Create an include path for each file specified
221	foreach(FIL ${ARGN})
222	get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
223	get_filename_component(ABS_PATH ${ABS_FIL} PATH)
224	list(FIND _protobuf_include_path ${ABS_PATH} _contains_already)
225	if(${_contains_already} EQUAL -1)
226	list(APPEND _protobuf_include_path -I ${ABS_PATH})
227	endif()
228	endforeach()
229	else()
230	set(_protobuf_include_path -I ${CMAKE_CURRENT_SOURCE_DIR})
231	endif()
232
233	if(DEFINED PROTOBUF_IMPORT_DIRS AND NOT DEFINED Protobuf_IMPORT_DIRS)
234	set(Protobuf_IMPORT_DIRS "${PROTOBUF_IMPORT_DIRS}")
235	endif()
236
237	if(DEFINED Protobuf_IMPORT_DIRS)
238	foreach(DIR ${Protobuf_IMPORT_DIRS})
239	get_filename_component(ABS_PATH ${DIR} ABSOLUTE)
240	list(FIND _protobuf_include_path ${ABS_PATH} _contains_already)
241	if(${_contains_already} EQUAL -1)
242	list(APPEND _protobuf_include_path -I ${ABS_PATH})
243	endif()
244	endforeach()
245	endif()
246
247	set(${SRCS})
248	foreach(FIL ${ARGN})
249	get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
250	get_filename_component(FIL_WE ${FIL} NAME_WE)
251	if(NOT PROTOBUF_GENERATE_CPP_APPEND_PATH)
252	get_filename_component(FIL_DIR ${FIL} DIRECTORY)
253	if(FIL_DIR)
254	set(FIL_WE "${FIL_DIR}/${FIL_WE}")
255	endif()
256	endif()
257
258	list(APPEND ${SRCS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}_pb2.py")
259	add_custom_command(
260	OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}_pb2.py"
261	COMMAND protobuf::protoc --python_out ${CMAKE_CURRENT_BINARY_DIR} ${_protobuf_include_path} ${ABS_FIL}
262	DEPENDS ${ABS_FIL} protobuf::protoc
263	COMMENT "Running Python protocol buffer compiler on ${FIL}"
264	VERBATIM )
265	endforeach()
266
267	set(${SRCS} ${${SRCS}} PARENT_SCOPE)
268	endfunction()
269
270
271	if(Protobuf_DEBUG)
272	# Output some of their choices
273	message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
274	"Protobuf_USE_STATIC_LIBS = ${Protobuf_USE_STATIC_LIBS}")
275	endif()
276
277
278	# Backwards compatibility
279	# Define camel case versions of input variables
280	foreach(UPPER
281	PROTOBUF_SRC_ROOT_FOLDER
282	PROTOBUF_IMPORT_DIRS
283	PROTOBUF_DEBUG
284	PROTOBUF_LIBRARY
285	PROTOBUF_PROTOC_LIBRARY
286	PROTOBUF_INCLUDE_DIR
287	PROTOBUF_PROTOC_EXECUTABLE
288	PROTOBUF_LIBRARY_DEBUG
289	PROTOBUF_PROTOC_LIBRARY_DEBUG
290	PROTOBUF_LITE_LIBRARY
291	PROTOBUF_LITE_LIBRARY_DEBUG
292	)
293	if (DEFINED ${UPPER})
294	string(REPLACE "PROTOBUF_" "Protobuf_" Camel ${UPPER})
295	if (NOT DEFINED ${Camel})
296	set(${Camel} ${${UPPER}})
297	endif()
298	endif()
299	endforeach()
300
301	if(CMAKE_SIZEOF_VOID_P EQUAL 8)
302	set(_PROTOBUF_ARCH_DIR x64/)
303	endif()
304
305
306	# Support preference of static libs by adjusting CMAKE_FIND_LIBRARY_SUFFIXES
307	if( Protobuf_USE_STATIC_LIBS )
308	set( _protobuf_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
309	if(WIN32)
310	set(CMAKE_FIND_LIBRARY_SUFFIXES .lib .a ${CMAKE_FIND_LIBRARY_SUFFIXES})
311	else()
312	set(CMAKE_FIND_LIBRARY_SUFFIXES .a )
313	endif()
314	endif()
315
316	include(SelectLibraryConfigurations)
317
318	# Internal function: search for normal library as well as a debug one
319	# if the debug one is specified also include debug/optimized keywords
320	# in *_LIBRARIES variable
321	function(_protobuf_find_libraries name filename)
322	if(${name}_LIBRARIES)
323	# Use result recorded by a previous call.
324	return()
325	elseif(${name}_LIBRARY)
326	# Honor cache entry used by CMake 3.5 and lower.
327	set(${name}_LIBRARIES "${${name}_LIBRARY}" PARENT_SCOPE)
328	else()
329	find_library(${name}_LIBRARY_RELEASE
330	NAMES ${filename}
331	PATHS ${Protobuf_SRC_ROOT_FOLDER}/vsprojects/${_PROTOBUF_ARCH_DIR}Release)
332	mark_as_advanced(${name}_LIBRARY_RELEASE)
333
334	find_library(${name}_LIBRARY_DEBUG
335	NAMES ${filename}d ${filename}
336	PATHS ${Protobuf_SRC_ROOT_FOLDER}/vsprojects/${_PROTOBUF_ARCH_DIR}Debug)
337	mark_as_advanced(${name}_LIBRARY_DEBUG)
338
339	select_library_configurations(${name})
340	set(${name}_LIBRARY "${${name}_LIBRARY}" PARENT_SCOPE)
341	set(${name}_LIBRARIES "${${name}_LIBRARIES}" PARENT_SCOPE)
342	endif()
343	endfunction()
344
345	# Internal function: find threads library
346	function(_protobuf_find_threads)
347	set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
348	find_package(Threads)
349	if(Threads_FOUND)
350	list(APPEND Protobuf_LIBRARIES ${CMAKE_THREAD_LIBS_INIT})
351	set(Protobuf_LIBRARIES "${Protobuf_LIBRARIES}" PARENT_SCOPE)
352	endif()
353	endfunction()
354
355	#
356	# Main.
357	#
358
359	# By default have PROTOBUF_GENERATE_CPP macro pass -I to protoc
360	# for each directory where a proto file is referenced.
361	if(NOT DEFINED PROTOBUF_GENERATE_CPP_APPEND_PATH)
362	set(PROTOBUF_GENERATE_CPP_APPEND_PATH TRUE)
363	endif()
364
365
366	# Google's provided vcproj files generate libraries with a "lib"
367	# prefix on Windows
368	if(MSVC)
369	set(Protobuf_ORIG_FIND_LIBRARY_PREFIXES "${CMAKE_FIND_LIBRARY_PREFIXES}")
370	set(CMAKE_FIND_LIBRARY_PREFIXES "lib" "")
371
372	find_path(Protobuf_SRC_ROOT_FOLDER protobuf.pc.in)
373	endif()
374
375	# The Protobuf library
376	_protobuf_find_libraries(Protobuf protobuf)
377	#DOC "The Google Protocol Buffers RELEASE Library"
378
379	_protobuf_find_libraries(Protobuf_LITE protobuf-lite)
380
381	# The Protobuf Protoc Library
382	_protobuf_find_libraries(Protobuf_PROTOC protoc)
383
384	# Restore original find library prefixes
385	if(MSVC)
386	set(CMAKE_FIND_LIBRARY_PREFIXES "${Protobuf_ORIG_FIND_LIBRARY_PREFIXES}")
387	endif()
388
389	if(UNIX)
390	_protobuf_find_threads()
391	endif()
392
393	# Find the include directory
394	find_path(Protobuf_INCLUDE_DIR
395	google/protobuf/service.h
396	PATHS ${Protobuf_SRC_ROOT_FOLDER}/src
397	)
398	mark_as_advanced(Protobuf_INCLUDE_DIR)
399
400	# Find the protoc Executable
401	find_program(Protobuf_PROTOC_EXECUTABLE
402	NAMES protoc
403	DOC "The Google Protocol Buffers Compiler"
404	PATHS
405	${Protobuf_SRC_ROOT_FOLDER}/vsprojects/${_PROTOBUF_ARCH_DIR}Release
406	${Protobuf_SRC_ROOT_FOLDER}/vsprojects/${_PROTOBUF_ARCH_DIR}Debug
407	)
408	mark_as_advanced(Protobuf_PROTOC_EXECUTABLE)
409
410	if(Protobuf_DEBUG)
411	message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
412	"requested version of Google Protobuf is ${Protobuf_FIND_VERSION}")
413	endif()
414
415	if(Protobuf_INCLUDE_DIR)
416	set(_PROTOBUF_COMMON_HEADER ${Protobuf_INCLUDE_DIR}/google/protobuf/stubs/common.h)
417
418	if(Protobuf_DEBUG)
419	message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
420	"location of common.h: ${_PROTOBUF_COMMON_HEADER}")
421	endif()
422
423	set(Protobuf_VERSION "")
424	set(Protobuf_LIB_VERSION "")
425	file(STRINGS ${_PROTOBUF_COMMON_HEADER} _PROTOBUF_COMMON_H_CONTENTS REGEX "#define[ \t]+GOOGLE_PROTOBUF_VERSION[ \t]+")
426	if(_PROTOBUF_COMMON_H_CONTENTS MATCHES "#define[ \t]+GOOGLE_PROTOBUF_VERSION[ \t]+([0-9]+)")
427	set(Protobuf_LIB_VERSION "${CMAKE_MATCH_1}")
428	endif()
429	unset(_PROTOBUF_COMMON_H_CONTENTS)
430
431	math(EXPR _PROTOBUF_MAJOR_VERSION "${Protobuf_LIB_VERSION} / 1000000")
432	math(EXPR _PROTOBUF_MINOR_VERSION "${Protobuf_LIB_VERSION} / 1000 % 1000")
433	math(EXPR _PROTOBUF_SUBMINOR_VERSION "${Protobuf_LIB_VERSION} % 1000")
434	set(Protobuf_VERSION "${_PROTOBUF_MAJOR_VERSION}.${_PROTOBUF_MINOR_VERSION}.${_PROTOBUF_SUBMINOR_VERSION}")
435
436	if(Protobuf_DEBUG)
437	message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
438	"${_PROTOBUF_COMMON_HEADER} reveals protobuf ${Protobuf_VERSION}")
439	endif()
440
441	# Check Protobuf compiler version to be aligned with libraries version
442	execute_process(COMMAND ${Protobuf_PROTOC_EXECUTABLE} --version
443	OUTPUT_VARIABLE _PROTOBUF_PROTOC_EXECUTABLE_VERSION)
444
445	if("${_PROTOBUF_PROTOC_EXECUTABLE_VERSION}" MATCHES "libprotoc ([0-9.]+)")
446	set(_PROTOBUF_PROTOC_EXECUTABLE_VERSION "${CMAKE_MATCH_1}")
447	endif()
448
449	if(Protobuf_DEBUG)
450	message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
451	"${Protobuf_PROTOC_EXECUTABLE} reveals version ${_PROTOBUF_PROTOC_EXECUTABLE_VERSION}")
452	endif()
453
454	if(NOT "${_PROTOBUF_PROTOC_EXECUTABLE_VERSION}" VERSION_EQUAL "${Protobuf_VERSION}")
455	message(WARNING "Protobuf compiler version ${_PROTOBUF_PROTOC_EXECUTABLE_VERSION}"
456	" doesn't match library version ${Protobuf_VERSION}")
457	endif()
458
459	if(Protobuf_LIBRARY)
460	if(NOT TARGET protobuf::libprotobuf)
461	add_library(protobuf::libprotobuf UNKNOWN IMPORTED)
462	set_target_properties(protobuf::libprotobuf PROPERTIES
463	INTERFACE_INCLUDE_DIRECTORIES "${Protobuf_INCLUDE_DIR}")
464	if(EXISTS "${Protobuf_LIBRARY}")
465	set_target_properties(protobuf::libprotobuf PROPERTIES
466	IMPORTED_LOCATION "${Protobuf_LIBRARY}")
467	endif()
468	if(EXISTS "${Protobuf_LIBRARY_RELEASE}")
469	set_property(TARGET protobuf::libprotobuf APPEND PROPERTY
470	IMPORTED_CONFIGURATIONS RELEASE)
471	set_target_properties(protobuf::libprotobuf PROPERTIES
472	IMPORTED_LOCATION_RELEASE "${Protobuf_LIBRARY_RELEASE}")
473	endif()
474	if(EXISTS "${Protobuf_LIBRARY_DEBUG}")
475	set_property(TARGET protobuf::libprotobuf APPEND PROPERTY
476	IMPORTED_CONFIGURATIONS DEBUG)
477	set_target_properties(protobuf::libprotobuf PROPERTIES
478	IMPORTED_LOCATION_DEBUG "${Protobuf_LIBRARY_DEBUG}")
479	endif()
480	endif()
481	endif()
482
483	if(Protobuf_LITE_LIBRARY)
484	if(NOT TARGET protobuf::libprotobuf-lite)
485	add_library(protobuf::libprotobuf-lite UNKNOWN IMPORTED)
486	set_target_properties(protobuf::libprotobuf-lite PROPERTIES
487	INTERFACE_INCLUDE_DIRECTORIES "${Protobuf_INCLUDE_DIR}")
488	if(EXISTS "${Protobuf_LITE_LIBRARY}")
489	set_target_properties(protobuf::libprotobuf-lite PROPERTIES
490	IMPORTED_LOCATION "${Protobuf_LITE_LIBRARY}")
491	endif()
492	if(EXISTS "${Protobuf_LITE_LIBRARY_RELEASE}")
493	set_property(TARGET protobuf::libprotobuf-lite APPEND PROPERTY
494	IMPORTED_CONFIGURATIONS RELEASE)
495	set_target_properties(protobuf::libprotobuf-lite PROPERTIES
496	IMPORTED_LOCATION_RELEASE "${Protobuf_LITE_LIBRARY_RELEASE}")
497	endif()
498	if(EXISTS "${Protobuf_LITE_LIBRARY_DEBUG}")
499	set_property(TARGET protobuf::libprotobuf-lite APPEND PROPERTY
500	IMPORTED_CONFIGURATIONS DEBUG)
501	set_target_properties(protobuf::libprotobuf-lite PROPERTIES
502	IMPORTED_LOCATION_DEBUG "${Protobuf_LITE_LIBRARY_DEBUG}")
503	endif()
504	endif()
505	endif()
506
507	if(Protobuf_PROTOC_LIBRARY)
508	if(NOT TARGET protobuf::libprotoc)
509	add_library(protobuf::libprotoc UNKNOWN IMPORTED)
510	set_target_properties(protobuf::libprotoc PROPERTIES
511	INTERFACE_INCLUDE_DIRECTORIES "${Protobuf_INCLUDE_DIR}")
512	if(EXISTS "${Protobuf_PROTOC_LIBRARY}")
513	set_target_properties(protobuf::libprotoc PROPERTIES
514	IMPORTED_LOCATION "${Protobuf_PROTOC_LIBRARY}")
515	endif()
516	if(EXISTS "${Protobuf_PROTOC_LIBRARY_RELEASE}")
517	set_property(TARGET protobuf::libprotoc APPEND PROPERTY
518	IMPORTED_CONFIGURATIONS RELEASE)
519	set_target_properties(protobuf::libprotoc PROPERTIES
520	IMPORTED_LOCATION_RELEASE "${Protobuf_PROTOC_LIBRARY_RELEASE}")
521	endif()
522	if(EXISTS "${Protobuf_PROTOC_LIBRARY_DEBUG}")
523	set_property(TARGET protobuf::libprotoc APPEND PROPERTY
524	IMPORTED_CONFIGURATIONS DEBUG)
525	set_target_properties(protobuf::libprotoc PROPERTIES
526	IMPORTED_LOCATION_DEBUG "${Protobuf_PROTOC_LIBRARY_DEBUG}")
527	endif()
528	endif()
529	endif()
530
531	if(Protobuf_PROTOC_EXECUTABLE)
532	if(NOT TARGET protobuf::protoc)
533	add_executable(protobuf::protoc IMPORTED)
534	if(EXISTS "${Protobuf_PROTOC_EXECUTABLE}")
535	set_target_properties(protobuf::protoc PROPERTIES
536	IMPORTED_LOCATION "${Protobuf_PROTOC_EXECUTABLE}")
537	endif()
538	endif()
539	endif()
540	endif()
541
542	include(FindPackageHandleStandardArgs)
543	FIND_PACKAGE_HANDLE_STANDARD_ARGS(Protobuf
544	REQUIRED_VARS Protobuf_LIBRARIES Protobuf_INCLUDE_DIR
545	VERSION_VAR Protobuf_VERSION
546	)
547
548	if(Protobuf_FOUND)
549	set(Protobuf_INCLUDE_DIRS ${Protobuf_INCLUDE_DIR})
550	endif()
551
552	# Restore the original find library ordering
553	if( Protobuf_USE_STATIC_LIBS )
554	set(CMAKE_FIND_LIBRARY_SUFFIXES ${_protobuf_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES})
555	endif()
556
557	# Backwards compatibility
558	# Define upper case versions of output variables
559	foreach(Camel
560	Protobuf_SRC_ROOT_FOLDER
561	Protobuf_IMPORT_DIRS
562	Protobuf_DEBUG
563	Protobuf_INCLUDE_DIRS
564	Protobuf_LIBRARIES
565	Protobuf_PROTOC_LIBRARIES
566	Protobuf_LITE_LIBRARIES
567	Protobuf_LIBRARY
568	Protobuf_PROTOC_LIBRARY
569	Protobuf_INCLUDE_DIR
570	Protobuf_PROTOC_EXECUTABLE
571	Protobuf_LIBRARY_DEBUG
572	Protobuf_PROTOC_LIBRARY_DEBUG
573	Protobuf_LITE_LIBRARY
574	Protobuf_LITE_LIBRARY_DEBUG
575	)
576	string(TOUPPER ${Camel} UPPER)
577	set(${UPPER} ${${Camel}})
578	endforeach()