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include(CheckCXXSourceCompiles)
find_library(LIBRT rt)
set(_libraries "${CMAKE_REQUIRED_LIBRARIES}")
if(LIBRT_FOUND)
list(APPEND CMAKE_REQUIRED_LIBRARIES "${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)
set(CMAKE_REQUIRED_LIBRARIES "${_libraries}")
unset(_libraries)
add_library(WrapRt INTERFACE)
if (LIBRT_FOUND)
target_link_libraries(WrapRt INTERFACE "${LIBRT}")
endif()
set(WrapRt_FOUND "${HAVE_GETTIME}")
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