annotate src/s/usg5-4-2.h @ 5562:855b667dea13

Drop cl-macro-environment in favour of byte-compile-macro-environment. lisp/ChangeLog addition: 2011-09-04 Aidan Kehoe <kehoea@parhasard.net> * bytecomp-runtime.el: * bytecomp-runtime.el (byte-compile-macro-environment): Moved from bytecomp.el. * bytecomp.el: * bytecomp.el (byte-compile-initial-macro-environment): Add implementations for #'load-time-value, #'labels here, now cl-macs respects byte-compile-macro-environment. * bytecomp.el (byte-compile-function-environment): * bytecomp.el (byte-compile-macro-environment): Removed. * bytecomp.el (symbol-value): * bytecomp.el (byte-compile-symbol-value): Removed. * cl-extra.el (cl-macroexpand-all): * cl-macs.el: * cl-macs.el (bind-block): * cl-macs.el (cl-macro-environment): Removed. * cl-macs.el (cl-transform-lambda): * cl-macs.el (load-time-value): * cl-macs.el (block): * cl-macs.el (flet): * cl-macs.el (labels): * cl-macs.el (macrolet): * cl-macs.el (symbol-macrolet): * cl-macs.el (lexical-let): * cl-macs.el (apply): * cl-macs.el (nthcdr): * cl-macs.el (getf): * cl-macs.el (substring): * cl-macs.el (values): * cl-macs.el (get-setf-method): * cl-macs.el (cl-setf-do-modify): * cl.el: * cl.el (cl-macro-environment): Removed. * cl.el (cl-macroexpand): * obsolete.el (cl-macro-environment): Moved here. Drop cl-macro-environment, in favour of byte-compile-macro-environment; make the latter available in bytecomp-runtime.el. This makes byte-compile-macro-environment far less useless, since previously code that used cl-macs would ignore it when calling #'cl-macroexpand-all. Add byte-compiler-specific implementations for #'load-time-value, #'labels. The latter is very nice indeed; it avoids the run-time consing of the current implementation, is fully lexical and avoids the run-time shadowing of symbol function slots that flet uses. It would now be reasonable to move most core uses of flet to use labels instead. Non-core code can't rely on print-circle for mutually recursive functions, though, so it's less of an evident win.
author Aidan Kehoe <kehoea@parhasard.net>
date Sun, 04 Sep 2011 20:37:55 +0100
parents 861f2601a38b
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
5494
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
1 /* s/ file for System V release 4.2.
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
2
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
3 Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
4 2008, 2009, 2010 Free Software Foundation, Inc.
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
5 Copyright (C) 2010 Ben Wing.
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
6
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
7 This file is part of XEmacs.
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
8
5494
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
9 XEmacs is free software: you can redistribute it and/or modify
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
10 it under the terms of the GNU General Public License as published by
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
11 the Free Software Foundation, either version 3 of the License, or
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
12 (at your option) any later version.
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
13
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
14 XEmacs is distributed in the hope that it will be useful,
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
17 GNU General Public License for more details.
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
18
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
19 You should have received a copy of the GNU General Public License
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
20 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
21
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
22 /* Synced up with: FSF 23.1.92. */
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
23 /* Synced by: Ben Wing, 2-18-10. */
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
24
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
25 #include "usg5-4.h"
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
26
5494
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
27 /* fnf@cygnus.com says these exist. */
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
28 #define HAVE_TCATTR
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
29 /* Delete HAVE_GETWD, POSIX_SIGNALS, sigsetmask, HAVE_SYSV_SIGPAUSE --
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
30 unused or autoconfigured in XEmacs */
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
31
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
32 /* Motif needs -lgen. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
33 #undef LIBS_SYSTEM
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
34 #define LIBS_SYSTEM "-lsocket -lnsl -lelf -lgen"
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
35
5494
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
36 /* Delete redefinition of PTY_TTY_NAME_SPRINTF, unnecessary since we
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
37 handle signal-calling better -- XEmacs */
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
38
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
39 /* Delete NEED_LIBW, LIB_MOTIF -- unused in XEmacs */
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
40
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
41 /* arch-tag: 9bbfcfc1-19be-45a1-9699-af57b87da2c6
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
42 (do not change this comment) */
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
43
861f2601a38b Sync s/ files with GNU 23.1.92, delete obsolete stuff, simplify other stuff
Ben Wing <ben@xemacs.org>
parents: 2367
diff changeset
44 /* XEmacs addition: */
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
45
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
46 /* XEmacs change: communicate to m/intel386.h */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
47 #define USG5_4_2