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$NetBSD: patch-ad,v 1.5 2014/12/12 08:32:42 mef Exp $

--- bsd/sccs.c.orig	2010-05-16 17:31:33.000000000 +0000
+++ src/sccs.c
@@ -1964,8 +1964,6 @@ unedit (const char *fn)
    */
   if (delete)
     {
-      extern int errno;
-
       cp = tail (pfn);
       if ('p' == cp[0] && '.' == cp[1])
 	{
@@ -2059,7 +2057,6 @@ dodiff (char * getv[], const char *gfile
   int rval;
   register int pid;
   auto int st;
-  extern int errno;
 
   printf ("\n------- %s -------\n", gfile);
   fflush (stdout);
@@ -2278,7 +2275,6 @@ usrerr (const char *fmt,...)
 void
 syserr (const char *fmt,...)
 {
-  extern int errno;
   va_list ap;
 
   fprintf (stderr, "\n%s SYSERR: ", program_name);