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4a4bbad214
The code that dealt with SIGIO was crufty and confusing, e.g., it played tricks like "#undef SIGIO" but these tricks were not used consistently. Simplify mostly by not #undeffing standard symbols, e.g., use "defined USABLE_SIGIO" (our symbol, which we can define or not as we please) rather than "defined SIGIO" (standard symbol that we probably shouldn't #undef). * configure.ac (NO_TERMIO, BROKEN_FIONREAD, BROKEN_SIGAIO) (BROKEN_SIGPOLL, BROKEN_SIGPTY): Remove. (USABLE_FIONREAD, USABLE_SIGIO): New symbols. All uses of 'defined SIGIO' replaced with 'defined USABLE_SIGIO', with no need to #undef SIGIO now (which was error-prone). Likewise, all uses of 'defined FIONREAD' replaced with 'defined USABLE_FIONREAD'. * src/admin/CPP_DEFINES (BROKEN_SIGAIO, BROKEN_SIGIO, BROKEN_SIGPOLL) (BROKEN_SIGPTY, NO_TERMIO): Remove. * src/conf_post.h [USG5_4]: Do not include <sys/wait.h> here. Modules that need it can include it. [USG5_4 && emacs]: Likewise, do not include the streams stuff here. * src/dispextern.h (ignore_sigio): New decl. * src/emacs.c (shut_down_emacs): Invoke unrequest_sigio unconditionally, since it's now a no-op if !USABLE_SIGIO. * src/emacs.c (shut_down_emacs): * src/keyboard.c (kbd_buffer_store_event_hold): Use ignore_sigio rather than invoking 'signal' directly. * src/keyboard.c (USABLE_FIONREAD && USG5_4): Include <sys/filio.h>, for FIONREAD. (FIONREAD, SIGIO): Do not #undef. (tty_read_avail_input): Use #error rather than a syntax error. * src/process.c [USG5_4]: Include <sys/stream.h> and <sys/stropts.h>, for I_PIPE, used by SETUP_SLAVE_PTY. (DATAGRAM_SOCKETS): Simplify defn, based on USABLE_FIONREAD. * src/sysdep.c (croak): Remove; no longer needed. This bit of temporary code, with Fred N. Fish's comment that it's temporary, has been in Emacs since at least 1992! (init_sigio, reset_sigio, request_sigio, unrequest_sigio): Arrange for them to be no-ops in all cases when ! USABLE_SIGIO. * src/syssignal.h (croak): Remove decl. (SIGIO, SIGPOO, SIGAIO, SIGPTY): Do not #undef; that's too fragile. * src/systty.h [!NO_TERMIO]: Do not include <termio.h>; no longer needed now that we're termios-only. (FIONREAD, ASYNC) [BROKEN_FIONREAD]: Do not #undef. * src/term.c (dissociate_if_controlling_tty): Use #error rather than a run-time error. Fixes: debbugs:12408 |
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| .. | ||
| charsets | ||
| coccinelle | ||
| grammars | ||
| notes | ||
| nt | ||
| unidata | ||
| admin.el | ||
| alloc-colors.c | ||
| build-configs | ||
| bzrmerge.el | ||
| ChangeLog | ||
| check-doc-strings | ||
| CPP-DEFINES | ||
| cus-test.el | ||
| diff-tar-files | ||
| emacs-pretesters | ||
| FOR-RELEASE | ||
| MAINTAINERS | ||
| make-announcement | ||
| make-changelog-diff | ||
| make-emacs | ||
| make-tarball.txt | ||
| merge-gnulib | ||
| quick-install-emacs | ||
| README | ||
Copyright (C) 2001-2012 Free Software Foundation, Inc. See the end of the file for license conditions. The admin directory This directory contains scripts and other things useful for developing and maintaining Emacs. These files are not part of Emacs releases because they are not deemed generally useful, and you have to know what you do when using them. * Instructions and scripts used to prepare an Emacs release. ** FOR-RELEASE Living list of activities that must be completed before the next release. ** make-tarball.txt Instructions to create pretest or release tarballs, announcements, etc. ** admin.el Utilities for setting version numbers and alike. ** make-announcement, make-changelog-diff Scripts used to prepare release announcements. * Scripts that can be used to build and test Emacs. ** build-configs Build Emacs in various configurations. ** make-emacs Build Emacs in various ways. ** quick-install-emacs Install emacs quickly (`incrementally'). ** alloc-colors.c A utility program that allocates a given number of colors on X. Can be used to debug Emacs with dense colormaps (PseudoColor). ** check-doc-strings Check doc strings against documentation. ** cus-test.el Tests for custom types and load problems. ** diff-tar-files Show files added/removed between two tar files. Brief description of sub-directories: charsets scripts for generating charset map files in ../etc/charsets unidata scripts for generating character property files in ../lisp/international This file is part of GNU Emacs. GNU Emacs is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. GNU Emacs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. Local variables: mode: outline paragraph-separate: "[ ]*$" end: