-int _xcb_out_write(XCBConnection *c, struct iovec **vector, int *count);
-int _xcb_out_send(XCBConnection *c, struct iovec **vector, int *count);
-int _xcb_out_flush_to(XCBConnection *c, unsigned int request);
+int _xcb_out_send(xcb_connection_t *c, struct iovec **vector, int *count);
+int _xcb_out_flush_to(xcb_connection_t *c, unsigned int request);