--- /dev/null
+++ Libc/Libc-763.13/stdio/FreeBSD/wbuf.c.patch
@@ -0,0 +1,22 @@
+--- wbuf.c.bsdnew	2009-11-11 13:33:20.000000000 -0800
++++ wbuf.c	2009-11-11 13:33:22.000000000 -0800
+@@ -37,6 +37,7 @@ static char sccsid[] = "@(#)wbuf.c	8.1 (
+ __FBSDID("$FreeBSD: src/lib/libc/stdio/wbuf.c,v 1.12 2007/01/09 00:28:08 imp Exp $");
+ 
+ #include <stdio.h>
++#include <errno.h>
+ #include "local.h"
+ 
+ /*
+@@ -61,8 +62,10 @@ __swbuf(c, fp)
+ 	 * calls might wrap _w from negative to positive.
+ 	 */
+ 	fp->_w = fp->_lbfsize;
+-	if (prepwrite(fp) != 0)
++	if (prepwrite(fp) != 0) {
++		errno = EBADF;
+ 		return (EOF);
++	}
+ 	c = (unsigned char)c;
+ 
+ 	ORIENT(fp, -1);