@@ -1,4 +1,4 @@
-/*	$NetBSD: var.c,v 1.270 2020/07/19 18:35:53 rillig Exp $	*/
+/*	$NetBSD: var.c,v 1.271 2020/07/19 19:27:08 rillig Exp $	*/
 
 /*
  * Copyright (c) 1988, 1989, 1990, 1993
@@ -69,14 +69,14 @@
  */
 
 #ifndef MAKE_NATIVE
-static char rcsid[] = "$NetBSD: var.c,v 1.270 2020/07/19 18:35:53 rillig Exp $";
+static char rcsid[] = "$NetBSD: var.c,v 1.271 2020/07/19 19:27:08 rillig Exp $";
 #else
 #include <sys/cdefs.h>
 #ifndef lint
 #if 0
 static char sccsid[] = "@(#)var.c	8.3 (Berkeley) 3/19/94";
 #else
-__RCSID("$NetBSD: var.c,v 1.270 2020/07/19 18:35:53 rillig Exp $");
+__RCSID("$NetBSD: var.c,v 1.271 2020/07/19 19:27:08 rillig Exp $");
 #endif
 #endif /* not lint */
 #endif
@@ -1578,7 +1578,7 @@
 		    rp++;
 		}
 
-		if (n > pat->nsub) {
+		if (n >= pat->nsub) {
 		    Error("No subexpression %s", &errstr[0]);
 		    subbuf = "";
 		    sublen = 0;

@@ -52,6 +52,10 @@
 mod-loop-dollar:$$5$$:
 mod-loop-dollar:$$${word}$$:
 mod-C-limits:00-ok:1 2323 45456
+make: No subexpression \1
+make: No subexpression \1
+make: No subexpression \1
+make: No subexpression \1
 mod-C-limits:11-missing:1 6
 mod-C-limits:11-ok:1 22 446
 make: No subexpression \2
@@ -59,6 +63,10 @@
 make: No subexpression \2
 make: No subexpression \2
 mod-C-limits:22-missing:1 6
+make: No subexpression \2
+make: No subexpression \2
+make: No subexpression \2
+make: No subexpression \2
 mod-C-limits:22-missing:1 6
 mod-C-limits:22-ok:1 33 556
 exit status 0