From 9f5428ad15d946bee4ac750f3916ff9322accaf9 Mon Sep 17 00:00:00 2001
From: kevans <kevans@FreeBSD.org>
Date: Wed, 16 Aug 2017 22:00:56 +0000
Subject: MFC r317705: bsdgrep: avoid use of magic number for REG_NOSPEC

Approved by:	emaste (mentor, blanket MFC)
---
 usr.bin/grep/grep.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

(limited to 'usr.bin')

diff --git a/usr.bin/grep/grep.c b/usr.bin/grep/grep.c
index 7bebe02..9844bd1 100644
--- a/usr.bin/grep/grep.c
+++ b/usr.bin/grep/grep.c
@@ -717,8 +717,13 @@ main(int argc, char *argv[])
 	case GREP_BASIC:
 		break;
 	case GREP_FIXED:
-		/* XXX: header mess, REG_LITERAL not defined in gnu/regex.h */
-		cflags |= 0020;
+#if defined(REG_NOSPEC)
+		cflags |= REG_NOSPEC;
+#elif defined(REG_LITERAL)
+		cflags |= REG_LITERAL;
+#else
+		errx(2, "literal expressions not supported at compile time");
+#endif
 		break;
 	case GREP_EXTENDED:
 		cflags |= REG_EXTENDED;
-- 
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