diff --git a/include/config.h.in b/include/config.h.in
index 51817f67..ed134eb0 100644
--- a/include/config.h.in
+++ b/include/config.h.in
@@ -6,6 +6,9 @@
 /* Define to 1 if you have the `getunwind' function. */
 #undef HAVE_GETUNWIND
 
+/* Define to 1 if you have the <ia64intrin.h> header file. */
+#undef HAVE_IA64INTRIN_H
+
 /* Define to 1 if you have the <inttypes.h> header file. */
 #undef HAVE_INTTYPES_H