qt5base-lts/cmake/FindWrapRt.cmake
Tim Blechmann d2ceb2e353 cmake: avoid unused parameters in cmake tests
unused parameters in cmake tests cause the tests to fail when the
project is configured with `-Werror,-Wunused-parameter`

Change-Id: If3065d008753a7718282dfc6ba0d79d46576cb34
Pick-to: 6.2 6.3
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
2022-02-22 02:02:48 +08:00

41 lines
963 B
CMake

# We can't create the same interface imported target multiple times, CMake will complain if we do
# that. This can happen if the find_package call is done in multiple different subdirectories.
if(TARGET WrapRt::WrapRt)
set(WrapRt_FOUND ON)
return()
endif()
set(WrapRt_FOUND OFF)
include(CheckCXXSourceCompiles)
include(CMakePushCheckState)
find_library(LIBRT rt)
cmake_push_check_state()
if(LIBRT)
list(APPEND CMAKE_REQUIRED_LIBRARIES "${LIBRT}")
endif()
check_cxx_source_compiles("
#include <unistd.h>
#include <time.h>
int main(int, char **) {
timespec ts; clock_gettime(CLOCK_REALTIME, &ts);
}" HAVE_GETTIME)
cmake_pop_check_state()
if(HAVE_GETTIME)
set(WrapRt_FOUND ON)
add_library(WrapRt::WrapRt INTERFACE IMPORTED)
if (LIBRT)
target_link_libraries(WrapRt::WrapRt INTERFACE "${LIBRT}")
endif()
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(WrapRt DEFAULT_MSG WrapRt_FOUND)