diff -r 5b4b766c27d9 -r bec413ce77c7 libpurple/protocols/yahoo/yahoochat.c
--- a/libpurple/protocols/yahoo/yahoochat.c	Sat Aug 14 03:55:19 2010 +0000
+++ b/libpurple/protocols/yahoo/yahoochat.c	Sat Aug 14 05:17:38 2010 +0000
@@ -121,7 +121,6 @@
 	char *msg = NULL;
 	GString *members = NULL;
 	GHashTable *components;
-	PurpleConversation *c = NULL;
 
 	if ( (pkt->status == 2) || (pkt->status == 11) )
 		return; /* Status is 11 when we are being notified about invitation being sent to someone else */
@@ -133,7 +132,7 @@
 		if (pair->key == 57)
 		{
 			room = yahoo_string_decode(gc, pair->value, FALSE);
-			if((c = yahoo_find_conference(gc, room)))
+			if (yahoo_find_conference(gc, room) != NULL)
 			{
 				/* Looks like we got invited to an already open conference. */
 				/* Laters: Should we accept this conference rather than ignoring the invitation ? */
@@ -880,7 +879,6 @@
 {
 	YahooData *yd = gc->proto_data;
 	struct yahoo_packet *pkt;
-	PurpleConversation *c;
 
 	char *eroom;
 	gboolean utf8 = 1;
@@ -905,7 +903,7 @@
 		yd->chat_name = NULL;
 	}
 
-	if ((c = purple_find_chat(gc, YAHOO_CHAT_ID)))
+	if (purple_find_chat(gc, YAHOO_CHAT_ID) != NULL)
 		serv_got_chat_left(gc, YAHOO_CHAT_ID);
 
 	if (!logout)