$NetBSD: patch-bh,v 1.3 2013/03/28 21:31:26 joerg Exp $

* Don't declare errno.

--- uip/bbc.c.orig	1998-12-01 17:05:00.000000000 +0000
+++ uip/bbc.c
@@ -112,7 +112,14 @@ struct bbcount {
 
 /*  */
 
-extern int  errno;
+void rcinit (char *rc);
+
+static void rcput (FILE *bbrc, struct bbcount *p);
+static void pgmread (int pd, int child_id, struct bboard *bb);
+static void add_bb (char *s, int hush);
+static void default_bboards (void);
+static void bbread (struct bboard *bb, int vecp, char *vec[]);
+static void rcend (void);
 
 static int  changed = 0;
 static int  oops = 0;
@@ -566,10 +573,7 @@ char   *s;
 
 /*  */
 
-bbread (bb, vecp, vec)
-register struct bboard  *bb;
-int	vecp;
-char   *vec[];
+static void bbread (struct bboard *bb, int vecp, char *vec[])
 {
     int     child_id,
             pd[2];
@@ -661,10 +665,7 @@ char   *vec[];
 
 /*  */
 
-pgmread (pd, child_id, bb)
-int     pd,
-        child_id;
-register struct bboard  *bb;
+static void pgmread (int pd, int child_id, struct bboard *bb)
 {
     int     i,
             j,
@@ -746,8 +747,7 @@ int	i;
 
 /*  */
 
-rcinit (rc)
-register char  *rc;
+void rcinit (char *rc)
 {
     int     state;
     register char  *cp;
@@ -797,7 +797,7 @@ register char  *rc;
 
 /*  */
 
-rcend () {
+static void rcend (void) {
     TYPESIG (*hstat) (), (*istat) (), (*qstat) (), (*tstat) ();
     register FILE *bbrc;
 
@@ -826,9 +826,7 @@ rcend () {
 }
 
 
-rcput (bbrc, p)
-register FILE *bbrc;
-register struct bbcount *p;
+static void rcput (FILE *bbrc, struct bbcount *p)
 {
     if (p == NULL)
 	return;
@@ -931,7 +929,7 @@ register char   *w;
 
 /*  */
 
-default_bboards () {
+static void default_bboards (void) {
     register char  *cp,
                   **ap;
 #ifdef	UCL
@@ -987,9 +985,7 @@ default_bboards () {
 
 /*  */
 
-add_bb (s, hush)
-register char   *s;
-int     hush;
+static void add_bb (char *s, int hush)
 {
     register struct bboard  *bb;
     static struct bboard   *tail = NULL;