1 files changed, 34 insertions, 0 deletions
diff --git a/cmake/FindWrapRt.cmake b/cmake/FindWrapRt.cmake
new file mode 100644
index 0000000000..d14b922062
--- /dev/null
+++ b/cmake/FindWrapRt.cmake
@@ -0,0 +1,34 @@
+# 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}")
+