diff --git a/openmp/runtime/src/include/omp.h.var b/openmp/runtime/src/include/omp.h.var
index dee46e51d6b34..82f9d07657ffb 100644
--- a/openmp/runtime/src/include/omp.h.var
+++ b/openmp/runtime/src/include/omp.h.var
@@ -15,8 +15,14 @@
 #ifndef __OMP_H
 #   define __OMP_H
 
+#   ifndef __has_include
+#   define __has_include(x) 0
+#   endif
+
 #   include <stddef.h>
-#   include <stdlib.h>
+#   if (__has_include(<stdlib.h>))
+#     include <stdlib.h>
+#   endif
 #   include <stdint.h>
 
 #   define KMP_VERSION_MAJOR    @LIBOMP_VERSION_MAJOR@