--- a/pidgin/gtkthemes.c Thu May 01 00:14:57 2014 +0200 +++ b/pidgin/gtkthemes.c Thu May 01 01:32:03 2014 +0200 @@ -274,7 +274,7 @@ } if (! g_utf8_validate(buf, -1, NULL)) { - purple_debug_error("gtkthemes", "%s:%d is invalid UTF-8\n", file, line_nbr); + purple_debug_error("gtkthemes", "%s:%" G_GSIZE_FORMAT " is invalid UTF-8\n", file, line_nbr); continue; }