--- config.h.in.orig	2022-08-25 11:16:02 UTC
+++ config.h.in
@@ -3,6 +3,9 @@
 /* A form that will not confuse apibuild.py */
 #undef ATTRIBUTE_DESTRUCTOR
 
+/* XXX */
+#define HAVE_VFSCANF
+
 /* Type cast for the gethostbyname() argument */
 #undef GETHOSTBYNAME_ARG_CAST