[src/netbsd-8]: src/usr.bin/m4 Pull up following revision(s) (requested by kr...

[martin <martin%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/489b94d6da86
branches:  netbsd-8
changeset: 851913:489b94d6da86
user:      martin <martin%NetBSD.org@localhost>
date:      Tue Aug 07 13:11:12 2018 +0000

description:
Pull up following revision(s) (requested by kre in ticket #956):

        usr.bin/m4/eval.c: revision 1.27

Avoid an infinite loop caused by a line accidentally dropped
in 1.22 (almost 30 months ago!)
[ Discovered by rhialto@ ]

diffstat:

 usr.bin/m4/eval.c |  5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diffs (27 lines):

diff -r 01535d9cc632 -r 489b94d6da86 usr.bin/m4/eval.c
--- a/usr.bin/m4/eval.c Tue Aug 07 13:02:31 2018 +0000
+++ b/usr.bin/m4/eval.c Tue Aug 07 13:11:12 2018 +0000
@@ -1,5 +1,5 @@
 /*     $OpenBSD: eval.c,v 1.66 2008/08/21 21:01:47 espie Exp $ */
-/*     $NetBSD: eval.c,v 1.24.8.1 2018/04/11 14:27:51 martin Exp $     */
+/*     $NetBSD: eval.c,v 1.24.8.2 2018/08/07 13:11:12 martin Exp $     */
 
 /*
  * Copyright (c) 1989, 1993
@@ -42,7 +42,7 @@
 #include "nbtool_config.h"
 #endif
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: eval.c,v 1.24.8.1 2018/04/11 14:27:51 martin Exp $");
+__RCSID("$NetBSD: eval.c,v 1.24.8.2 2018/08/07 13:11:12 martin Exp $");
 
 #include <sys/types.h>
 #include <ctype.h>
@@ -987,6 +987,7 @@
                        }
                } else {
                        while (*src) {
+                               sch = (unsigned char)(*src++);
                                dch = mapvec[sch];
                                while (dch != sch) {
                                        sch = dch;