From 84f0869fde4cbdd7095a1532ad55d2996b66af38 Mon Sep 17 00:00:00 2001
From: ceriel <none@none>
Date: Mon, 20 Oct 1986 13:47:26 +0000
Subject: [PATCH] Fixed a bug: ack could not see the difference between ".mod"
 and ".m". This is corrected.

---
 util/ack/scan.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/util/ack/scan.c b/util/ack/scan.c
index 9165537f8..a43193fc5 100644
--- a/util/ack/scan.c
+++ b/util/ack/scan.c
@@ -200,11 +200,13 @@ int satisfy(trafo,suffix) register trf *trafo; char *suffix ; {
 			fuerror("Illegal input suffix entry for %s",
 				trafo->t_name) ;
 		}
-		l_char=index(f_char+1,SUFCHAR);
-		if ( l_char ? strncmp(f_char,suffix,l_char-f_char)==0 :
-			      strcmp(f_char,suffix)==0 ) {
-			return 1 ;
+		l_char=strindex(f_char+1,SUFCHAR);
+		if ( l_char ) *l_char = 0;
+		if ( strcmp(f_char,suffix)==0 ) {
+			if ( l_char ) *l_char = SUFCHAR;
+			return 1;
 		}
+		if ( l_char ) *l_char = SUFCHAR;
 	}
 	return 0 ;
 }
-- 
2.34.1