diff --git a/src/xpdev/threadwrap.h b/src/xpdev/threadwrap.h
index 1383d18fd78e31823e8e4c544f3b62b87356bb8d..19d14575e447aa796ff0e9553c54f071c6c6d858 100644
--- a/src/xpdev/threadwrap.h
+++ b/src/xpdev/threadwrap.h
@@ -41,7 +41,7 @@
 #include "wrapdll.h"	/* DLLEXPORT and DLLCALL */
 
 #if !__STDC_NO_ATOMICS__
-	#if defined __GNUC__ && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 9))
+	#if defined __GNUC__ && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 9)) && !defined(__llvm__) && !defined(__INTEL_COMPILER)
 		#define __STDC_NO_ATOMICS__ 1
 	#elif defined __BORLANDC__ || defined _MSC_VER
 		#define __STDC_NO_ATOMICS__ 1