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Karoly Lorentey authored
src/term.c (O_NOCTTY): Make sure it's defined. (no_controlling_tty): New variable. (init_initial_display, mark_ttys): Remove unused variable. (term_init): Check that the given filename is a terminal device. Dissociate the controlling terminal if we reopen it for other purposes. (Reported by Dan Nicolaescu <dann at ics dot uci dot edu>. (Fdelete_tty): Return nil. git-archimport-id: lorentey@elte.hu--2004/emacs--multi-tty--0--patch-72
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