ClickHouse/contrib/cctz-cmake/CMakeLists.txt
2020-08-13 23:28:56 +02:00

101 lines
4.3 KiB
CMake

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 ${INCLUDE_CCTZ})
endif()
else()
set (EXTERNAL_CCTZ_LIBRARY_FOUND 0)
message (${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 ()
# Build a libray with embedded tzdata
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)
# each file/symlink in that dir (except of tab and localtime) store the info about timezone
execute_process(COMMAND bash -c "cd ${TZDIR} && find * -type f,l -and ! -name '*.tab' -and ! -name 'localtime' | sort | paste -sd ';'" OUTPUT_STRIP_TRAILING_WHITESPACE OUTPUT_VARIABLE TIMEZONES )
foreach(TIMEZONE ${TIMEZONES})
string(REPLACE "/" "_" TIMEZONE_ID ${TIMEZONE})
string(REPLACE "+" "_PLUS_" TIMEZONE_ID ${TIMEZONE_ID})
set(TZ_OBJ ${TIMEZONE_ID}.o)
set(TZ_OBJS ${TZ_OBJS} ${TZ_OBJ})
# https://stackoverflow.com/questions/14776463/compile-and-add-an-object-file-from-a-binary-with-cmake
add_custom_command(OUTPUT ${TZ_OBJ}
COMMAND cd ${TZDIR} && ${OBJCOPY_PATH} -I binary ${OBJCOPY_ARCH_OPTIONS} ${TIMEZONE} ${CMAKE_CURRENT_BINARY_DIR}/${TZ_OBJ}
COMMAND ${OBJCOPY_PATH} --rename-section .data=.rodata,alloc,load,readonly,data,contents
${CMAKE_CURRENT_BINARY_DIR}/${TZ_OBJ} ${CMAKE_CURRENT_BINARY_DIR}/${TZ_OBJ})
set_source_files_properties(${TZ_OBJ} PROPERTIES EXTERNAL_OBJECT true GENERATED true)
endforeach(TIMEZONE)
add_library(tzdata STATIC ${TZ_OBJS})
set_target_properties(tzdata PROPERTIES LINKER_LANGUAGE C)
# whole-archive prevents symbols from being discarded for unknown reason
# CMake can shuffle each of target_link_libraries arguments with other
# libraries in linker command. To avoid this we hardcode whole-archive
# library into single string.
add_dependencies(cctz tzdata)
target_link_libraries(cctz INTERFACE "-Wl,${WHOLE_ARCHIVE} $<TARGET_FILE:tzdata> -Wl,${NO_WHOLE_ARCHIVE}")
endif ()
endif ()
message (STATUS "Using cctz")