When compiling current master with `--enable-gcc-warnings` set, I get the following errors: ``` connection_edge.c: In function ‘connection_edge_process_inbuf’: connection_edge.c:160: error: format ‘%ld’ expects type ‘long int’, but argument 7 has type ‘size_t’ connection_edge.c: In function ‘connection_ap_handshake_send_begin’: connection_edge.c:2444: error: format ‘%ld’ expects type ‘long int’, but argument 5 has type ‘size_t’ connection_edge.c:2444: error: format ‘%ld’ expects type ‘long int’, but argument 6 has type ‘size_t’ ``` I changed `%ld` into `%d` in those lines in my sources which made the warnings go away. But I'm not sure if that's the right fix, which is why I didn't attach a patch.