diff --git a/cmake/sdlchecks.cmake b/cmake/sdlchecks.cmake
--- a/cmake/sdlchecks.cmake
+++ b/cmake/sdlchecks.cmake
@@ -847,7 +847,7 @@ macro(CheckPTHREAD)
     # Run some tests
     set(ORIG_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
     set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} ${PTHREAD_CFLAGS} ${PTHREAD_LDFLAGS}")
-    if(CMAKE_CROSSCOMPILING)
+    if(CMAKE_CROSSCOMPILING OR DARWIN)
       set(HAVE_PTHREADS 1)
     else()
       check_c_source_runs("