diff -aur old/lib/isc/unix/socket.c new/lib/isc/unix/socket.c
--- old/lib/isc/unix/socket.c	2011-02-18 05:01:16.000000000 +0100
+++ new/lib/isc/unix/socket.c	2011-05-27 10:12:01.685269374 +0200
@@ -712,6 +712,8 @@
 }
 #endif
 
+#undef SO_BSDCOMPAT
+
 static void
 socket_log(isc__socket_t *sock, isc_sockaddr_t *address,
 	   isc_logcategory_t *category, isc_logmodule_t *module, int level,