GitLab

(x_connection_closed): Set FRAME_X_DISPLAY to 0.
(x_destroy_window): Don't do any X operations if FRAME_X_DISPLAY is 0.

(x_term_init): Use "" as 2nd arg to setlocale.

(x_connection_signal): Don't stop polling.
Don't mess with SIGALRM.
Those were relics of the superseded Dec 19 change.