CMake/Modules/FindProtobuf.cmake
Alex Neundorf b01184022b Use absolute path to FindPackageHandleStandardArgs.cmake everywhere
This is to avoid getting an (older) copy of FPHSA.cmake which is
e.g. installed with KDE 4.5.0 and 4.5.1.

Alex
2010-09-28 22:30:31 +02:00

122 lines
4.3 KiB
CMake

# Locate and configure the Google Protocol Buffers library.
# Defines the following variables:
#
# PROTOBUF_FOUND - Found the Google Protocol Buffers library
# PROTOBUF_INCLUDE_DIRS - Include directories for Google Protocol Buffers
# PROTOBUF_LIBRARIES - The protobuf library
#
# The following cache variables are also defined:
# 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
#
# ====================================================================
# 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 ${PROTOBUF_LIBRARY})
#
# NOTE: You may need to link against pthreads, depending
# on the platform.
# ====================================================================
#
# PROTOBUF_GENERATE_CPP (public function)
# SRCS = Variable to define with autogenerated
# source files
# HDRS = Variable to define with autogenerated
# header files
# ARGN = proto files
#
# ====================================================================
#=============================================================================
# Copyright 2009 Kitware, Inc.
# Copyright 2009 Philip Lowman <philip@yhbt.com>
# Copyright 2008 Esben Mose Hansen, Ange Optimization ApS
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
function(PROTOBUF_GENERATE_CPP SRCS HDRS)
if(NOT ARGN)
message(SEND_ERROR "Error: PROTOBUF_GENERATE_CPP() called without any proto files")
return()
endif(NOT ARGN)
set(${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} --proto_path ${CMAKE_CURRENT_SOURCE_DIR} ${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()
find_path(PROTOBUF_INCLUDE_DIR google/protobuf/service.h)
# Google's provided vcproj files generate libraries with a "lib"
# prefix on Windows
if(WIN32)
set(PROTOBUF_ORIG_FIND_LIBRARY_PREFIXES "${CMAKE_FIND_LIBRARY_PREFIXES}")
set(CMAKE_FIND_LIBRARY_PREFIXES "lib" "")
endif()
find_library(PROTOBUF_LIBRARY NAMES protobuf
DOC "The Google Protocol Buffers Library"
)
find_library(PROTOBUF_PROTOC_LIBRARY NAMES protoc
DOC "The Google Protocol Buffers Compiler Library"
)
find_program(PROTOBUF_PROTOC_EXECUTABLE NAMES protoc
DOC "The Google Protocol Buffers Compiler"
)
mark_as_advanced(PROTOBUF_INCLUDE_DIR
PROTOBUF_LIBRARY
PROTOBUF_PROTOC_LIBRARY
PROTOBUF_PROTOC_EXECUTABLE)
# Restore original find library prefixes
if(WIN32)
set(CMAKE_FIND_LIBRARY_PREFIXES "${PROTOBUF_ORIG_FIND_LIBRARY_PREFIXES}")
endif()
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})
set(PROTOBUF_LIBRARIES ${PROTOBUF_LIBRARY})
endif()