ClickHouse/cmake/find/cxx.cmake

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2020-01-13 09:55:57 +00:00
set(USE_INTERNAL_LIBCXX_LIBRARY_DEFAULT ${NOT_UNBUNDLED})
if(NOT EXISTS "${ClickHouse_SOURCE_DIR}/contrib/libcxx/CMakeLists.txt")
message(WARNING "submodule contrib/libcxx is missing. to fix try run: \n git submodule update --init --recursive")
2020-01-13 09:55:57 +00:00
set(USE_INTERNAL_LIBCXX_LIBRARY_DEFAULT 0)
endif()
option (USE_LIBCXX "Use libc++ and libc++abi instead of libstdc++" ${NOT_UNBUNDLED})
option (USE_INTERNAL_LIBCXX_LIBRARY "Set to FALSE to use system libcxx and libcxxabi libraries instead of bundled" ${USE_INTERNAL_LIBCXX_LIBRARY_DEFAULT})
if (USE_LIBCXX)
set (CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -D_LIBCPP_DEBUG=0") # More checks in debug build.
if (NOT USE_INTERNAL_LIBCXX_LIBRARY)
find_library (LIBCXX_LIBRARY c++)
find_library (LIBCXXFS_LIBRARY c++fs)
find_library (LIBCXXABI_LIBRARY c++abi)
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
target_link_libraries(global-libs INTERFACE ${EXCEPTION_HANDLING_LIBRARY})
else ()
set (LIBCXX_LIBRARY cxx)
set (LIBCXXABI_LIBRARY cxxabi)
add_subdirectory(contrib/libcxxabi-cmake)
add_subdirectory(contrib/libcxx-cmake)
# Exception handling library is embedded into libcxxabi.
endif ()
target_link_libraries(global-libs INTERFACE ${LIBCXX_LIBRARY} ${LIBCXXABI_LIBRARY} ${LIBCXXFS_LIBRARY})
set (HAVE_LIBCXX 1)
message (STATUS "Using libcxx: ${LIBCXX_LIBRARY}")
message (STATUS "Using libcxxfs: ${LIBCXXFS_LIBRARY}")
message (STATUS "Using libcxxabi: ${LIBCXXABI_LIBRARY}")
else ()
target_link_libraries(global-libs INTERFACE -l:libstdc++.a -l:libstdc++fs.a) # Always link these libraries as static
target_link_libraries(global-libs INTERFACE ${EXCEPTION_HANDLING_LIBRARY})
endif ()