diff --git a/lib/config-vms.h b/lib/config-vms.h
index bbc8c5969a07876e80b37f153e6d34d09edf6a08..8e894aae36a4cca5d86a8aad79ed0673f545a1f9 100755
--- a/lib/config-vms.h
+++ b/lib/config-vms.h
@@ -366,3 +366,6 @@
 #define HAVE_MEMORY_H   1
 
 #define HAVE_FIONBIO	1
+
+/* Define if you have the `sigsetjmp' function. */
+#define HAVE_SIGSETJMP 1