qt5base-lts/cmake/FindWrapRt.cmake
Alexandru Croitor ace5495870 Fix a few of the Wrap modules to protect against double creation of
targets. This created issues when trying to build standalone examples.

Change-Id: Iaaea2b537793ae25fbf3143cc205574446aa4ad1
Reviewed-by: Kevin Funk <kevin.funk@kdab.com>
2019-06-05 12:30:47 +00:00

35 lines
802 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)
set(WrapRt_FOUND ON)
return()
endif()
include(CheckCXXSourceCompiles)
include(CMakePushCheckState)
find_library(LIBRT rt)
cmake_push_check_state()
if(LIBRT_FOUND)
list(APPEND CMAKE_REQUIRED_LIBRARIES "${LIBRT}")
endif()
check_cxx_source_compiles("
#include <unistd.h>
#include <time.h>
int main(int argc, char *argv[]) {
timespec ts; clock_gettime(CLOCK_REALTIME, &ts);
}" HAVE_GETTIME)
cmake_pop_check_state()
add_library(WrapRt INTERFACE IMPORTED)
if (LIBRT_FOUND)
target_link_libraries(WrapRt INTERFACE "${LIBRT}")
endif()
set(WrapRt_FOUND "${HAVE_GETTIME}")