diff --git a/pyconfig.h.in b/pyconfig.h.in
index 4935077..d2af3e9 100644
--- a/pyconfig.h.in
+++ b/pyconfig.h.in
@@ -743,9 +743,15 @@
 /* Define to 1 if you have the `sigrelse' function. */
 #undef HAVE_SIGRELSE
 
+/* Define to 1 if you have the `sigtimedwait' function. */
+#undef HAVE_SIGTIMEDWAIT
+
 /* Define to 1 if you have the `sigwait' function. */
 #undef HAVE_SIGWAIT
 
+/* Define to 1 if you have the `sigwaitinfo' function. */
+#undef HAVE_SIGWAITINFO
+
 /* Define to 1 if you have the `snprintf' function. */
 #undef HAVE_SNPRINTF