From fb93c5e22563750fbfda0b410192840ae3de70f0 Mon Sep 17 00:00:00 2001
From: tg <tg@mirbsd.org>
Date: Sun, 17 Apr 2011 15:40:35 +0000
Subject: [PATCH] =?UTF-8?q?by=20prodding=20of=20wbx@=20let=20functions=20i?=
 =?UTF-8?q?nherit=20a=20global=20xtrace=20(also=20since=20all=20other=20sh?=
 =?UTF-8?q?ells=20seem=20to=20do=20it,=20save=20posh=20which=20doesn?=
 =?UTF-8?q?=E2=80=99t=20trace=E2=80=BD)?=
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---
 exec.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/exec.c b/exec.c
index 1660055..91901e9 100644
--- a/exec.c
+++ b/exec.c
@@ -22,7 +22,7 @@
 
 #include "sh.h"
 
-__RCSID("$MirOS: src/bin/mksh/exec.c,v 1.89 2011/04/02 10:30:10 tg Exp $");
+__RCSID("$MirOS: src/bin/mksh/exec.c,v 1.90 2011/04/17 15:40:35 tg Exp $");
 
 #ifndef MKSH_DEFAULT_EXECSHELL
 #define MKSH_DEFAULT_EXECSHELL	"/bin/sh"
@@ -717,7 +717,7 @@ comexec(struct op *t, struct tbl * volatile tp, const char **ap,
 		}
 
 		old_xflag = Flag(FXTRACE);
-		Flag(FXTRACE) = tp->flag & TRACE ? 1 : 0;
+		Flag(FXTRACE) |= tp->flag & TRACE ? 1 : 0;
 
 		old_inuse = tp->flag & FINUSE;
 		tp->flag |= FINUSE;