ClickHouse/cmake/target.cmake
2019-09-15 13:35:12 +03:00

71 lines
2.8 KiB
CMake

if (CMAKE_SYSTEM_NAME MATCHES "Linux")
set (OS_LINUX 1)
add_compile_definitions(OS_LINUX)
elseif (CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
set (OS_FREEBSD 1)
add_compile_definitions(OS_FREEBSD)
elseif (CMAKE_SYSTEM_NAME MATCHES "Darwin")
set (OS_DARWIN 1)
add_compile_definitions(OS_DARWIN)
endif ()
if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
set (COMPILER_GCC 1)
elseif (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
set (COMPILER_CLANG 1)
endif ()
if (COMPILER_GCC)
# Require minimum version of gcc
set (GCC_MINIMUM_VERSION 8)
if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS ${GCC_MINIMUM_VERSION} AND NOT CMAKE_VERSION VERSION_LESS 2.8.9)
message (FATAL_ERROR "GCC version must be at least ${GCC_MINIMUM_VERSION}. For example, if GCC ${GCC_MINIMUM_VERSION} is available under gcc-${GCC_MINIMUM_VERSION}, g++-${GCC_MINIMUM_VERSION} names, do the following: export CC=gcc-${GCC_MINIMUM_VERSION} CXX=g++-${GCC_MINIMUM_VERSION}; rm -rf CMakeCache.txt CMakeFiles; and re run cmake or ./release.")
endif ()
elseif (COMPILER_CLANG)
# Require minimum version of clang
set (CLANG_MINIMUM_VERSION 7)
if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS ${CLANG_MINIMUM_VERSION})
message (FATAL_ERROR "Clang version must be at least ${CLANG_MINIMUM_VERSION}.")
endif ()
else ()
message (WARNING "You are using an unsupported compiler. Compilation has only been tested with Clang 6+ and GCC 7+.")
endif ()
string(REGEX MATCH "-?[0-9]+(.[0-9]+)?$" COMPILER_POSTFIX ${CMAKE_CXX_COMPILER})
if (OS_LINUX)
find_program (LLD_PATH NAMES "lld${COMPILER_POSTFIX}" "lld")
find_program (GOLD_PATH NAMES "gold")
endif()
option (LINKER_NAME "Linker name or full path")
if (NOT LINKER_NAME)
if (COMPILER_CLANG AND LLD_PATH)
set (LINKER_NAME "lld")
elseif (GOLD_PATH)
set (LINKER_NAME "gold")
endif ()
endif ()
if (LINKER_NAME)
message(STATUS "Using linker: ${LINKER_NAME} (selected from: LLD_PATH=${LLD_PATH}; GOLD_PATH=${GOLD_PATH}; COMPILER_POSTFIX=${COMPILER_POSTFIX})")
set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fuse-ld=${LINKER_NAME}")
endif ()
if (CMAKE_CROSSCOMPILING)
if (CMAKE_SYSTEM_NAME MATCHES "Darwin")
set (CMAKE_SYSTEM_PROCESSOR x86_64)
set (CMAKE_C_COMPILER_TARGET x86_64-apple-darwin)
set (CMAKE_CXX_COMPILER_TARGET x86_64-apple-darwin)
set (HAS_PRE_1970_EXITCODE "0" CACHE STRING "Result from TRY_RUN" FORCE)
set (HAS_PRE_1970_EXITCODE__TRYRUN_OUTPUT "" CACHE STRING "Output from TRY_RUN" FORCE)
set( HAS_POST_2038_EXITCODE "0" CACHE STRING "Result from TRY_RUN" FORCE)
set( HAS_POST_2038_EXITCODE__TRYRUN_OUTPUT "" CACHE STRING "Output from TRY_RUN" FORCE)
endif ()
# Don't know why but CXX_STANDARD doesn't work for cross-compilation
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17")
endif ()