diff -r 3ee545012e46 -r c5445f25f90f libpurple/plugins/signals-test.c
--- a/libpurple/plugins/signals-test.c	Wed Nov 12 03:59:11 2014 -0500
+++ b/libpurple/plugins/signals-test.c	Thu Nov 13 01:06:59 2014 -0500
@@ -620,10 +620,10 @@
 static void
 notify_emails_cb(char **subjects, char **froms, char **tos, char **urls, guint count) {
 	guint i;
-	purple_debug_misc("signals test", "notify emails: count=%d\n", count);
+	purple_debug_misc("signals test", "notify emails: count=%u\n", count);
 	for(i=0; i<count && i<5; i++) {
 		if(subjects[i]==NULL || froms[i]==NULL || tos[i]==NULL || urls[i]==NULL) continue;
-		purple_debug_misc("signals test", "notify emails[%d]: subject=%s, from=%s, to=%s, url=%s\n",
+		purple_debug_misc("signals test", "notify emails[%u]: subject=%s, from=%s, to=%s, url=%s\n",
 			i, subjects[i], froms[i], tos[i], urls[i]);
 	}
 }