From 0d2dcf2166f77fab2af39d9e89bff157ffc0ca5b Mon Sep 17 00:00:00 2001
From: Yuri Pankov <yuripv@FreeBSD.org>
Date: Sat, 12 Dec 2020 15:38:32 +0000
Subject: [PATCH] xargs: compile yesexpr as ERE

yesexpr is an extended regular expression for quite some time now,
use appropriate flag when compiling it.

PR:		238762
Reviewed by:	kevans
Differential Revision:	https://reviews.freebsd.org/D27509
---
 usr.bin/xargs/xargs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/usr.bin/xargs/xargs.c b/usr.bin/xargs/xargs.c
index e69314e58fa3..2825a26f4dfa 100644
--- a/usr.bin/xargs/xargs.c
+++ b/usr.bin/xargs/xargs.c
@@ -782,7 +782,7 @@ prompt(void)
 	(void)fprintf(stderr, "?...");
 	(void)fflush(stderr);
 	if ((response = fgetln(ttyfp, &rsize)) == NULL ||
-	    regcomp(&cre, nl_langinfo(YESEXPR), REG_BASIC) != 0) {
+	    regcomp(&cre, nl_langinfo(YESEXPR), REG_EXTENDED) != 0) {
 		(void)fclose(ttyfp);
 		return (0);
 	}