From 499e19f97b1662d0412b6a48069c0b224e47ef49 Mon Sep 17 00:00:00 2001
From: Markus Armbruster <armbru@pond.sub.org>
Date: Sat, 20 May 2006 11:04:00 +0000
Subject: [PATCH] (improve): Fix unsafe use of opt_DEFENSE_INFRA as array
 subscript.

---
 src/lib/commands/improve.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lib/commands/improve.c b/src/lib/commands/improve.c
index 9a8ad28d..041fdd4a 100644
--- a/src/lib/commands/improve.c
+++ b/src/lib/commands/improve.c
@@ -71,7 +71,7 @@ improve(void)
     int wanted;
 
     if (!(p = getstarg(player->argp[1],
-		       prompt[opt_DEFENSE_INFRA], buf)) || !*p)
+		       prompt[!!opt_DEFENSE_INFRA], buf)) || !*p)
 	return RET_SYN;
     if (!strncmp(p, "ro", 2))
 	type = INT_ROAD;