ClickHouse/contrib/cctz-cmake/CMakeLists.txt

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CMake
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option (USE_INTERNAL_CCTZ_LIBRARY "Use internal cctz library" ${NOT_UNBUNDLED})
if (NOT USE_INTERNAL_CCTZ_LIBRARY)
find_library (LIBRARY_CCTZ cctz)
find_path (INCLUDE_CCTZ NAMES cctz/civil_time.h)
if (LIBRARY_CCTZ AND INCLUDE_CCTZ)
set (EXTERNAL_CCTZ_LIBRARY_FOUND 1)
set(CMAKE_REQUIRED_LIBRARIES ${LIBRARY_CCTZ})
set(CMAKE_REQUIRED_INCLUDES ${INCLUDE_CCTZ})
check_cxx_source_compiles(
"
#include <cctz/civil_time.h>
int main() {
cctz::civil_day date;
}
"
EXTERNAL_CCTZ_LIBRARY_WORKS
)
if (NOT EXTERNAL_CCTZ_LIBRARY_WORKS)
message (${RECONFIGURE_MESSAGE_LEVEL} "External cctz is not working: ${LIBRARY_CCTZ} ${INCLUDE_CCTZ}")
else()
add_library (cctz UNKNOWN IMPORTED)
set_property (TARGET cctz PROPERTY IMPORTED_LOCATION ${LIBRARY_CCTZ})
set_property (TARGET cctz PROPERTY INTERFACE_INCLUDE_DIRECTORIES ${INCLUDE_CCTZ})
endif()
set(SYSTEM_STORAGE_TZ_FILE "${CMAKE_BINARY_DIR}/src/Storages/System/StorageSystemTimeZones.generated.cpp")
file(REMOVE ${SYSTEM_STORAGE_TZ_FILE})
file(APPEND ${SYSTEM_STORAGE_TZ_FILE} "// autogenerated by ClickHouse/contrib/cctz-cmake/CMakeLists.txt\n")
file(APPEND ${SYSTEM_STORAGE_TZ_FILE} "const char * auto_time_zones[] {nullptr};\n" )
else()
set (EXTERNAL_CCTZ_LIBRARY_FOUND 0)
message (${RECONFIGURE_MESSAGE_LEVEL} "Can't find system cctz")
endif()
endif()
if (NOT EXTERNAL_CCTZ_LIBRARY_FOUND OR NOT EXTERNAL_CCTZ_LIBRARY_WORKS)
set(USE_INTERNAL_CCTZ_LIBRARY 1)
set(LIBRARY_DIR "${ClickHouse_SOURCE_DIR}/contrib/cctz")
set (SRCS
"${LIBRARY_DIR}/src/civil_time_detail.cc"
"${LIBRARY_DIR}/src/time_zone_fixed.cc"
"${LIBRARY_DIR}/src/time_zone_format.cc"
"${LIBRARY_DIR}/src/time_zone_if.cc"
"${LIBRARY_DIR}/src/time_zone_impl.cc"
"${LIBRARY_DIR}/src/time_zone_info.cc"
"${LIBRARY_DIR}/src/time_zone_libc.cc"
"${LIBRARY_DIR}/src/time_zone_lookup.cc"
"${LIBRARY_DIR}/src/time_zone_posix.cc"
"${LIBRARY_DIR}/src/zone_info_source.cc"
)
add_library (cctz ${SRCS})
target_include_directories (cctz PUBLIC "${LIBRARY_DIR}/include")
if (OS_FREEBSD)
# yes, need linux, because bsd check inside linux in time_zone_libc.cc:24
target_compile_definitions (cctz PRIVATE __USE_BSD linux _XOPEN_SOURCE=600)
endif ()
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# Related to time_zones table:
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# StorageSystemTimeZones.generated.cpp is autogenerated each time during a build
# data in this file will be used to populate the system.time_zones table, this is specific to OS_LINUX
# as the library that's built using embedded tzdata is also specific to OS_LINUX
set(SYSTEM_STORAGE_TZ_FILE "${CMAKE_BINARY_DIR}/src/Storages/System/StorageSystemTimeZones.generated.cpp")
# remove existing copies so that its generated fresh on each build.
file(REMOVE ${SYSTEM_STORAGE_TZ_FILE})
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# Build a libray with embedded tzdata
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if (OS_LINUX)
# get the list of timezones from tzdata shipped with cctz
set(TZDIR "${LIBRARY_DIR}/testdata/zoneinfo")
file(STRINGS "${LIBRARY_DIR}/testdata/version" TZDATA_VERSION)
set_property(GLOBAL PROPERTY TZDATA_VERSION_PROP "${TZDATA_VERSION}")
message(STATUS "Packaging with tzdata version: ${TZDATA_VERSION}")
set(TZ_OBJS)
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# each file in that dir (except of tab and localtime) store the info about timezone
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execute_process(COMMAND
bash -c "cd ${TZDIR} && find * -type f -and ! -name '*.tab' -and ! -name 'localtime' | sort | paste -sd ';'"
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OUTPUT_STRIP_TRAILING_WHITESPACE
OUTPUT_VARIABLE TIMEZONES)
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file(APPEND ${SYSTEM_STORAGE_TZ_FILE} "// autogenerated by ClickHouse/contrib/cctz-cmake/CMakeLists.txt\n")
file(APPEND ${SYSTEM_STORAGE_TZ_FILE} "const char * auto_time_zones[] {\n" )
foreach(TIMEZONE ${TIMEZONES})
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file(APPEND ${SYSTEM_STORAGE_TZ_FILE} " \"${TIMEZONE}\",\n")
string(REPLACE "/" "_" TIMEZONE_ID ${TIMEZONE})
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string(REPLACE "+" "_PLUS_" TIMEZONE_ID ${TIMEZONE_ID})
set(TZ_OBJ ${TIMEZONE_ID}.o)
set(TZ_OBJS ${TZ_OBJS} ${TZ_OBJ})
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# https://stackoverflow.com/questions/14776463/compile-and-add-an-object-file-from-a-binary-with-cmake
# PPC64LE fails to do this with objcopy, use ld or lld instead
if (ARCH_PPC64LE)
add_custom_command(OUTPUT ${TZ_OBJ}
COMMAND cp "${TZDIR}/${TIMEZONE}" "${CMAKE_CURRENT_BINARY_DIR}/${TIMEZONE_ID}"
COMMAND cd ${CMAKE_CURRENT_BINARY_DIR} && ${CMAKE_LINKER} -m elf64lppc -r -b binary -o ${TZ_OBJ} ${TIMEZONE_ID}
COMMAND rm "${CMAKE_CURRENT_BINARY_DIR}/${TIMEZONE_ID}")
else()
add_custom_command(OUTPUT ${TZ_OBJ}
COMMAND cp "${TZDIR}/${TIMEZONE}" "${CMAKE_CURRENT_BINARY_DIR}/${TIMEZONE_ID}"
COMMAND cd ${CMAKE_CURRENT_BINARY_DIR} && ${OBJCOPY_PATH} -I binary ${OBJCOPY_ARCH_OPTIONS}
--rename-section .data=.rodata,alloc,load,readonly,data,contents ${TIMEZONE_ID} ${TZ_OBJ}
COMMAND rm "${CMAKE_CURRENT_BINARY_DIR}/${TIMEZONE_ID}")
endif()
set_source_files_properties(${TZ_OBJ} PROPERTIES EXTERNAL_OBJECT true GENERATED true)
endforeach(TIMEZONE)
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file(APPEND ${SYSTEM_STORAGE_TZ_FILE} " nullptr};\n")
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add_library(tzdata STATIC ${TZ_OBJS})
set_target_properties(tzdata PROPERTIES LINKER_LANGUAGE C)
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# whole-archive prevents symbols from being discarded for unknown reason
# CMake can shuffle each of target_link_libraries arguments with other
# libraries in linker command. To avoid this we hardcode whole-archive
# library into single string.
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add_dependencies(cctz tzdata)
target_link_libraries(cctz INTERFACE "-Wl,${WHOLE_ARCHIVE} $<TARGET_FILE:tzdata> -Wl,${NO_WHOLE_ARCHIVE}")
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else ()
file(APPEND ${SYSTEM_STORAGE_TZ_FILE} "// autogenerated by ClickHouse/contrib/cctz-cmake/CMakeLists.txt\n")
file(APPEND ${SYSTEM_STORAGE_TZ_FILE} "const char * auto_time_zones[] {nullptr};\n" )
endif ()
endif ()
message (STATUS "Using cctz")