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+# 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(NOT ARGN)
+
+ 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()
+
+#
+# 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()
+
+
+# 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()