Your bug report #51820: 29.0.50; process_pending_signals is almost useless without SIGIO which was filed against the emacs package, has been closed. The explanation is attached below, along with your original report. If you require more details, please reply to 51820@debbugs.gnu.org. -- 51820: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=51820 GNU Bug Tracking System Contact help-debbugs@gnu.org with problems