Function X11_sig

win/X11/winX.c:1704–1709

#ifdef X11_HANGUP_SIGNAL
static void
X11_sig(int sig) /* Unix signal handler */
{
    XtNoticeSignal(X11_sig_id);
    hangup(sig);
}

static void
X11_sig_cb(XtPointer not_used, XtSignalId *id)