Squashed 'third_party/protobuf/' content from commit e35e248
Change-Id: I6cbe123d09fe50fdcad0e51466665daeee7433c7
git-subtree-dir: third_party/protobuf
git-subtree-split: e35e24800fb8d694bdeea5fd63dc7d1b14d68723
diff --git a/cmake/protobuf-module.cmake.in b/cmake/protobuf-module.cmake.in
new file mode 100644
index 0000000..d81dc45
--- /dev/null
+++ b/cmake/protobuf-module.cmake.in
@@ -0,0 +1,139 @@
+if(PROTOBUF_SRC_ROOT_FOLDER)
+ message(AUTHOR_WARNING "Variable PROTOBUF_SRC_ROOT_FOLDER defined, but not"
+ " used in CONFIG mode")
+endif()
+
+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 ${CMAKE_CURRENT_SOURCE_DIR})
+ endif()
+
+ # Add well-known type protos include path
+ list(APPEND _protobuf_include_path
+ -I "${_PROTOBUF_IMPORT_PREFIX}/@CMAKE_INSTALL_INCLUDEDIR@")
+
+ 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} ${PROTOBUF_PROTOC_EXECUTABLE}
+ 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)
+ get_target_property(${name}_LIBRARY lib${filename}
+ IMPORTED_LOCATION_RELEASE)
+ set(${name}_LIBRARY "${${name}_LIBRARY}" PARENT_SCOPE)
+ get_target_property(${name}_LIBRARY_DEBUG lib${filename}
+ IMPORTED_LOCATION_DEBUG)
+ set(${name}_LIBRARY_DEBUG "${${name}_LIBRARY_DEBUG}" PARENT_SCOPE)
+
+ 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()
+
+# The Protobuf library
+_protobuf_find_libraries(PROTOBUF protobuf)
+
+# The Protobuf Lite library
+_protobuf_find_libraries(PROTOBUF_LITE protobuf-lite)
+
+# The Protobuf Protoc Library
+_protobuf_find_libraries(PROTOBUF_PROTOC protoc)
+
+if(UNIX)
+ _protobuf_find_threads()
+endif()
+
+# Set the include directory
+set(PROTOBUF_INCLUDE_DIR "${_PROTOBUF_IMPORT_PREFIX}/@CMAKE_INSTALL_INCLUDEDIR@")
+
+# Set the protoc Executable
+get_target_property(PROTOBUF_PROTOC_EXECUTABLE protoc
+ IMPORTED_LOCATION_RELEASE)
+if(NOT PROTOBUF_PROTOC_EXECUTABLE)
+ get_target_property(PROTOBUF_PROTOC_EXECUTABLE protoc
+ IMPORTED_LOCATION_DEBUG)
+endif()
+
+include(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(PROTOBUF DEFAULT_MSG
+ PROTOBUF_LIBRARY PROTOBUF_INCLUDE_DIR)
+
+if(PROTOBUF_FOUND)
+ set(PROTOBUF_INCLUDE_DIRS ${PROTOBUF_INCLUDE_DIR})
+endif()