mirror of
https://gitee.com/openharmony/third_party_benchmark
synced 2024-11-23 15:30:48 +00:00
45 lines
1.3 KiB
CMake
45 lines
1.3 KiB
CMake
# - Compile and run code to check for C++ features
|
|
#
|
|
# This functions compiles a source file under the `cmake` folder
|
|
# and adds the corresponding `HAVE_[FILENAME]` flag to the CMake
|
|
# environment
|
|
#
|
|
# cxx_feature_check(<FLAG> [<VARIANT>])
|
|
#
|
|
# - Example
|
|
#
|
|
# include(CXXFeatureCheck)
|
|
# cxx_feature_check(STD_REGEX)
|
|
# Requires CMake 2.6+
|
|
|
|
if(__cxx_feature_check)
|
|
return()
|
|
endif()
|
|
set(__cxx_feature_check INCLUDED)
|
|
|
|
function(cxx_feature_check FILE)
|
|
string(TOLOWER ${FILE} FILE)
|
|
string(TOUPPER ${FILE} VAR)
|
|
string(TOUPPER "HAVE_${VAR}" FEATURE)
|
|
if (DEFINED HAVE_${VAR})
|
|
return()
|
|
endif()
|
|
message("-- Performing Test ${FEATURE}")
|
|
try_run(RUN_${FEATURE} COMPILE_${FEATURE}
|
|
${CMAKE_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/cmake/${FILE}.cpp
|
|
CMAKE_FLAGS ${BENCHMARK_CXX_LINKER_FLAGS}
|
|
LINK_LIBRARIES ${BENCHMARK_CXX_LIBRARIES})
|
|
if(RUN_${FEATURE} EQUAL 0)
|
|
message("-- Performing Test ${FEATURE} -- success")
|
|
set(HAVE_${VAR} 1 CACHE INTERNAL "Feature test for ${FILE}" PARENT_SCOPE)
|
|
add_definitions(-DHAVE_${VAR})
|
|
else()
|
|
if(NOT COMPILE_${FEATURE})
|
|
message("-- Performing Test ${FEATURE} -- failed to compile")
|
|
else()
|
|
message("-- Performing Test ${FEATURE} -- compiled but failed to run")
|
|
endif()
|
|
endif()
|
|
endfunction()
|
|
|