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view src/s/mingw32.h @ 5566:4654c01af32b
Improve the implementation, documentation of #'labels, #'flet.
lisp/ChangeLog addition:
2011-09-07 Aidan Kehoe <kehoea@parhasard.net>
* bytecomp.el:
* bytecomp.el (for-effect): Move this earlier in the file, it's
referenced in byte-compile-initial-macro-environment.
* bytecomp.el (byte-compile-initial-macro-environment):
In the byte-compile-macro-environment definition for #'labels, put
off the compiling the lambda bodies until the point where the rest
of the form is being compiled, allowing the lambda bodies to
access appropriate values for byte-compile-bound-variables, and
reducing excessive warning about free variables.
Add a byte-compile-macro-environment definition for #'flet. This
modifies byte-compile-function-environment appropriately, and
warns about bindings of functions that have macro definitions in
the current environment, about functions that have byte codes, and
about functions that have byte-compile methods (which may not do
what the user wants at runtime).
* bytecomp.el (byte-compile-funcall):
If FUNCTION is constant, call #'byte-compile-callargs-warn if
that's appropriate, giving warnings about problems with calling
functions bound with #'labels.
* cl-macs.el:
* cl-macs.el (flet):
Mention the main difference from Common Lisp, that the bindings
are dynamic, not lexical. Counsel the use of #'labels, not #'flet,
for this and other reasons. Explain the limited single use case for
#'flet. Cross-reference to bytecomp.el in a comment.
* cl-macs.el (labels):
Go into detail on which functions may be called from
where. Explain how to access the function definition of a label
within FORM. Add a comment cross-referencing to bytecomp.el.
man/ChangeLog addition:
2011-09-07 Aidan Kehoe <kehoea@parhasard.net>
* cl.texi (Function Bindings):
Move #'labels first, describe it in more detail, explaining that
it is to be preferred over #'flet, and explaining why.
Explain that dynamic bindings with #'flet will also not work when
functions are accessed through their bytecodes.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Wed, 07 Sep 2011 16:26:45 +0100 |
| parents | 308d34e9f07d |
| children |
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/* system description file for mingw32. Copyright (C) 1993, 1994, 1995, 1999 Free Software Foundation, Inc. Copyright (C) 2001, 2002 Ben Wing. This file is part of XEmacs. XEmacs 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. XEmacs 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 XEmacs. If not, see <http://www.gnu.org/licenses/>. */ /* based on cygwin32.h by Andy Piper <andy@xemacs.org> */ /* See win32.c for info about the different Windows files in XEmacs. */ #include "win32-native.h" #define MINGW /* We are using Cygwin-style headers in /usr/include, also used by Cygwin itself */ #define CYGWIN_HEADERS #ifndef ORDINARY_LINK #define ORDINARY_LINK #endif #define C_SWITCH_SYSTEM "-mno-cygwin -fno-caller-saves -DWIN32_NATIVE -DMINGW" #define LIBS_SYSTEM "-mno-cygwin -mwindows -lwinmm -lwsock32" #define WIN32_LEAN_AND_MEAN #define TEXT_START -1 #define HEAP_IN_DATA #define UNEXEC "unexcw.o" #define TIME_ONESHOT 0 #define TIME_PERIODIC 1 #define LOCALE_USE_CP_ACP 0x40000000 #define NSIG 23 /* this is necessary to get the TCS_* definitions in <commctrl.h> */ #define _WIN32_IE 0x0400 /* translate NT world unexec stuff to our a.out definitions */ #define strnicmp strncasecmp /* #ifndef HAVE_SOCKETS */ #define HAVE_SOCKETS /* #endif */ #define OBJECTS_SYSTEM nt.o ntheap.o ntproc.o dired-msw.o #undef MAIL_USE_SYSTEM_LOCK #define HAVE_MSW_C_DIRED /* Do not define LOAD_AVE_TYPE or LOAD_AVE_CVT since there is no load average available. */ /* define MAIL_USE_FLOCK if the mailer uses flock to interlock access to /usr/spool/mail/$USER. The alternative is that a lock file named /usr/spool/mail/$USER.lock. */ #ifndef NOT_C_CODE #include <stdlib.h> #include <../mingw/process.h> #define mkdir __mkdir #include <dir.h> #undef mkdir #ifdef HAVE_CYGWIN_VERSION_H #include <cygwin/version.h> #endif #endif /* NOT_C_CODE */ #define DONT_USE_LITOUT /* Stuff that gets set wrongly or otherwise */ #define HAVE_GETTIMEOFDAY #define HAVE_SELECT /* systime.h includes winsock.h which defines timeval */ #define HAVE_TIMEVAL #define HAVE_GETPAGESIZE #define getpagesize() 4096 #ifndef HAVE_H_ERRNO #define HAVE_H_ERRNO #endif #ifndef HAVE_TZNAME #define HAVE_TZNAME #endif #undef GETTIMEOFDAY_ONE_ARGUMENT #undef HAVE_SYS_WAIT_H #undef HAVE_TERMIOS #undef SYSV_SYSTEM_DIR #undef CLASH_DETECTION