--- plan9/src/cmd/9660srv/main.c	2009-12-11 19:18:18.000000000 +0200
+++ plan9.new/src/cmd/9660srv/main.c	2009-12-11 19:18:43.000000000 +0200
@@ -38,7 +38,7 @@
 uchar mdata[Maxiosize];
 char fdata[Maxfdata];
 uchar statbuf[STATMAX];
-int errno;
+#include <errno.h>
 
 
 extern Xfsub	*xsublist[];