From: H.G.Muller <hgm@hgm-xboard.(none)>
Date: Tue, 21 Oct 2014 19:52:21 +0000 (+0200)
Subject: Suppress duplicat autoInstalls
X-Git-Url: http://winboard.nl/cgi-bin?p=xboard.git;a=commitdiff_plain;h=6d862f543aa8a687641aaab3c77aa141c33c0f8d

Suppress duplicat autoInstalls

If the engine line constructed for -autoInstall already occurs in
the engine list, we should not install it again.
---

diff --git a/menus.c b/menus.c
index 9d2b286..086c9b4 100644
--- a/menus.c
+++ b/menus.c
@@ -1176,6 +1176,7 @@ InstallNewEngine (char *command, char *dir, char *variants, char *protocol)
 	snprintf(buf + strlen(buf), MSG_SIZ - strlen(buf), " -fd %s", dir);
     if(!strcmp(protocol, "uci"))
 	snprintf(buf + strlen(buf), MSG_SIZ - strlen(buf), " -fUCI");
+    if(strstr(firstChessProgramNames, buf)) return; // avoid duplicats
     // append line
     quote = malloc(strlen(firstChessProgramNames) + strlen(buf) + 2);
     sprintf(quote, "%s%s\n", firstChessProgramNames, buf);