--- config.h.in.orig	2023-03-05 17:09:22.768898000 +0100
+++ config.h.in	2023-03-05 17:32:21.267867000 +0100
@@ -1,5 +1,7 @@
 /* config.h.in.  Generated from configure.ac by autoheader.  */
 
+#define __BSD_VISIBLE 1
+
 /* CUPS data directory. */
 #undef CUPS_DATADIR
 
