297 lines
8.1 KiB
CMake
297 lines
8.1 KiB
CMake
#.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 & vsprojects/Release) will be searched
|
|
# for libraries and binaries.
|
|
#
|
|
#
|
|
#
|
|
# ::
|
|
#
|
|
# PROTOBUF_IMPORT_DIRS - List of additional directories to be searched for
|
|
# imported .proto files. (New in CMake 2.8.8)
|
|
#
|
|
#
|
|
#
|
|
# Defines the following variables:
|
|
#
|
|
# ::
|
|
#
|
|
# PROTOBUF_FOUND - Found the Google Protocol Buffers library (libprotobuf & header files)
|
|
# PROTOBUF_INCLUDE_DIRS - Include directories for Google Protocol Buffers
|
|
# PROTOBUF_LIBRARIES - The protobuf libraries
|
|
#
|
|
# [New in CMake 2.8.5]
|
|
#
|
|
# ::
|
|
#
|
|
# PROTOBUF_PROTOC_LIBRARIES - The protoc libraries
|
|
# PROTOBUF_LITE_LIBRARIES - The protobuf-lite libraries
|
|
#
|
|
#
|
|
#
|
|
# 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
|
|
#
|
|
# [New in CMake 2.8.5]
|
|
#
|
|
# ::
|
|
#
|
|
# 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:
|
|
#
|
|
#
|
|
#
|
|
# ::
|
|
#
|
|
# find_package(Protobuf REQUIRED)
|
|
# include_directories(${PROTOBUF_INCLUDE_DIRS})
|
|
#
|
|
#
|
|
#
|
|
# ::
|
|
#
|
|
# include_directories(${CMAKE_CURRENT_BINARY_DIR})
|
|
# PROTOBUF_GENERATE_CPP(PROTO_SRCS PROTO_HDRS foo.proto)
|
|
# add_executable(bar bar.cc ${PROTO_SRCS} ${PROTO_HDRS})
|
|
# target_link_libraries(bar ${PROTOBUF_LIBRARIES})
|
|
#
|
|
#
|
|
#
|
|
# NOTE: You may need to link against pthreads, depending
|
|
#
|
|
# ::
|
|
#
|
|
# on the platform.
|
|
#
|
|
#
|
|
#
|
|
# NOTE: The PROTOBUF_GENERATE_CPP macro & add_executable() or
|
|
# add_library()
|
|
#
|
|
# ::
|
|
#
|
|
# calls only work properly within the same directory.
|
|
#
|
|
#
|
|
#
|
|
# ::
|
|
#
|
|
# ====================================================================
|
|
#
|
|
#
|
|
#
|
|
# PROTOBUF_GENERATE_CPP (public function)
|
|
#
|
|
# ::
|
|
#
|
|
# SRCS = Variable to define with autogenerated
|
|
# source files
|
|
# HDRS = Variable to define with autogenerated
|
|
# header files
|
|
# ARGN = proto files
|
|
#
|
|
#
|
|
#
|
|
# ::
|
|
#
|
|
# ====================================================================
|
|
|
|
|
|
#=============================================================================
|
|
# Copyright 2009 Kitware, Inc.
|
|
# Copyright 2009-2011 Philip Lowman <philip@yhbt.com>
|
|
# Copyright 2008 Esben Mose Hansen, Ange Optimization ApS
|
|
#
|
|
# Distributed under the OSI-approved BSD License (the "License");
|
|
# see accompanying file Copyright.txt for details.
|
|
#
|
|
# This software is distributed WITHOUT ANY WARRANTY; without even the
|
|
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
# See the License for more information.
|
|
#=============================================================================
|
|
# (To distribute this file outside of CMake, substitute the full
|
|
# License text for the above reference.)
|
|
|
|
function(PROTOBUF_GENERATE_CPP SRCS HDRS)
|
|
if(NOT ARGN)
|
|
message(SEND_ERROR "Error: PROTOBUF_GENERATE_CPP() 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)
|
|
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})
|
|
foreach(FIL ${ARGN})
|
|
get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
|
|
get_filename_component(FIL_WE ${FIL} NAME_WE)
|
|
|
|
list(APPEND ${SRCS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.cc")
|
|
list(APPEND ${HDRS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h")
|
|
|
|
add_custom_command(
|
|
OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.cc"
|
|
"${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h"
|
|
COMMAND ${PROTOBUF_PROTOC_EXECUTABLE}
|
|
ARGS --cpp_out ${CMAKE_CURRENT_BINARY_DIR} ${_protobuf_include_path} ${ABS_FIL}
|
|
DEPENDS ${ABS_FIL}
|
|
COMMENT "Running C++ protocol buffer compiler on ${FIL}"
|
|
VERBATIM )
|
|
endforeach()
|
|
|
|
set_source_files_properties(${${SRCS}} ${${HDRS}} PROPERTIES GENERATED TRUE)
|
|
set(${SRCS} ${${SRCS}} PARENT_SCOPE)
|
|
set(${HDRS} ${${HDRS}} PARENT_SCOPE)
|
|
endfunction()
|
|
|
|
# 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)
|
|
find_library(${name}_LIBRARY
|
|
NAMES ${filename}
|
|
PATHS ${PROTOBUF_SRC_ROOT_FOLDER}/vsprojects/Release)
|
|
mark_as_advanced(${name}_LIBRARY)
|
|
|
|
find_library(${name}_LIBRARY_DEBUG
|
|
NAMES ${filename}
|
|
PATHS ${PROTOBUF_SRC_ROOT_FOLDER}/vsprojects/Debug)
|
|
mark_as_advanced(${name}_LIBRARY_DEBUG)
|
|
|
|
if(NOT ${name}_LIBRARY_DEBUG)
|
|
# There is no debug library
|
|
set(${name}_LIBRARY_DEBUG ${${name}_LIBRARY} PARENT_SCOPE)
|
|
set(${name}_LIBRARIES ${${name}_LIBRARY} PARENT_SCOPE)
|
|
else()
|
|
# There IS a debug library
|
|
set(${name}_LIBRARIES
|
|
optimized ${${name}_LIBRARY}
|
|
debug ${${name}_LIBRARY_DEBUG}
|
|
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/Release
|
|
${PROTOBUF_SRC_ROOT_FOLDER}/vsprojects/Debug
|
|
)
|
|
mark_as_advanced(PROTOBUF_PROTOC_EXECUTABLE)
|
|
|
|
|
|
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
|
|
FIND_PACKAGE_HANDLE_STANDARD_ARGS(PROTOBUF DEFAULT_MSG
|
|
PROTOBUF_LIBRARY PROTOBUF_INCLUDE_DIR)
|
|
|
|
if(PROTOBUF_FOUND)
|
|
set(PROTOBUF_INCLUDE_DIRS ${PROTOBUF_INCLUDE_DIR})
|
|
endif()
|