--- saslauthd/auth_shadow.c	2009-12-03 14:07:03.000000000 -0500
+++ saslauthd/auth_shadow.c.oden	2011-10-14 12:10:26.269460477 -0400
@@ -36,6 +36,7 @@
 
 #ifdef AUTH_SHADOW
 
+#define _XOPEN_SOURCE
 #define PWBUFSZ 256 /***SWB***/
 
 # include <unistd.h>