diff -r 3949b825f4bf -r faf0414a8b51 libpurple/protocols/yahoo/yahoo_packet.c
--- a/libpurple/protocols/yahoo/yahoo_packet.c	Tue Aug 20 14:04:56 2013 +0200
+++ b/libpurple/protocols/yahoo/yahoo_packet.c	Wed Aug 21 14:59:29 2013 +0200
@@ -139,7 +139,7 @@
 	char key[64];
 	const guchar *delimiter;
 	gboolean accept;
-	int x;
+	guint x;
 	struct yahoo_pair *pair;
 
 	while (pos + 1 < len)
@@ -370,7 +370,7 @@
 		return ret;
 	}
 
-	if (ret < len) {
+	if ((gsize)ret < len) {
 		if (yd->txhandler == 0)
 			yd->txhandler = purple_input_add(yd->fd, PURPLE_INPUT_WRITE,
 				yahoo_packet_send_can_write, yd);