--- config.h.in.orig	2022-10-10 21:16:40 UTC
+++ config.h.in
@@ -30,6 +30,9 @@
 /* Define to 1 if you have the `clearenv' function. */
 #undef HAVE_CLEARENV
 
+/* Define to 1 if you have the `closefrom' function. */
+#undef HAVE_CLOSEFROM
+
 /* Define to 1 if you have the <ctype.h> header file. */
 #undef HAVE_CTYPE_H
 
