ClickHouse/cmake/find_protobuf.cmake

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option(USE_INTERNAL_PROTOBUF_LIBRARY "Set to FALSE to use system protobuf instead of bundled" ${NOT_UNBUNDLED})
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if(OS_FREEBSD AND SANITIZE STREQUAL "address")
# ../contrib/protobuf/src/google/protobuf/arena_impl.h:45:10: fatal error: 'sanitizer/asan_interface.h' file not found
set(MISSING_INTERNAL_PROTOBUF_LIBRARY 1)
set(USE_INTERNAL_PROTOBUF_LIBRARY 0)
endif()
if(NOT EXISTS "${ClickHouse_SOURCE_DIR}/contrib/protobuf/cmake/CMakeLists.txt")
if(USE_INTERNAL_PROTOBUF_LIBRARY)
message(WARNING "submodule contrib/protobuf is missing. to fix try run: \n git submodule update --init --recursive")
set(USE_INTERNAL_PROTOBUF_LIBRARY 0)
endif()
set(MISSING_INTERNAL_PROTOBUF_LIBRARY 1)
endif()
if(NOT USE_INTERNAL_PROTOBUF_LIBRARY)
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find_package(Protobuf)
endif()
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if (Protobuf_LIBRARY AND Protobuf_INCLUDE_DIR)
set(USE_PROTOBUF 1)
elseif(NOT MISSING_INTERNAL_PROTOBUF_LIBRARY)
set(Protobuf_INCLUDE_DIR ${ClickHouse_SOURCE_DIR}/contrib/protobuf/src)
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set(USE_PROTOBUF 1)
set(USE_INTERNAL_PROTOBUF_LIBRARY 1)
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set(Protobuf_LIBRARY libprotobuf)
set(Protobuf_PROTOC_LIBRARY libprotoc)
set(Protobuf_LITE_LIBRARY libprotobuf-lite)
set(Protobuf_PROTOC_EXECUTABLE ${ClickHouse_BINARY_DIR}/contrib/protobuf/cmake/protoc)
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if(NOT DEFINED PROTOBUF_GENERATE_CPP_APPEND_PATH)
set(PROTOBUF_GENERATE_CPP_APPEND_PATH TRUE)
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 ${CMAKE_CURRENT_SOURCE_DIR})
endif()
if(DEFINED PROTOBUF_IMPORT_DIRS AND NOT DEFINED Protobuf_IMPORT_DIRS)
set(Protobuf_IMPORT_DIRS "${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})
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()
endif()
message(STATUS "Using protobuf=${USE_PROTOBUF}: ${Protobuf_INCLUDE_DIR} : ${Protobuf_LIBRARY}")