Mercurial > hg > xemacs-beta
view src/s/openbsd.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 | 861f2601a38b |
children |
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/* s/ file for openbsd systems. */ /* Synced up with: FSF 23.1.92. */ /* Synced by: Ben Wing, 2-18-10. */ /* Mostly the same as NetBSD. */ #include "netbsd.h" #if 0 /* Following mrb, this stuff is probably unneeded for XEmacs */ /* This very-badly named symbol is conditionally defined in netbsd.h. Better would be either to not need it in the first place, or to choose a more descriptive name. */ #ifndef LD_SWITCH_SYSTEM_tmp #define LD_SWITCH_SYSTEM_tmp /* empty */ #endif #endif /* 0 */ /* TERMINFO, LIBS_TERMCAP deleted */ #if 0 /* Following mrb, this stuff is probably unneeded for XEmacs */ #undef LD_SWITCH_SYSTEM_TEMACS #undef LD_SWITCH_SYSTEM #ifdef __ELF__ /* Han Boetes <han@mijncomputer.nl> says this is necessary, otherwise Emacs dumps core on elf systems. */ #define LD_SWITCH_SYSTEM LD_SWITCH_SYSTEM_tmp "-Z" /* The version of gcc on OpenBSD doesn't search /usr/local/lib by default. */ #define LD_SWITCH_X_DEFAULT "-L/usr/local/lib" #else #define LD_SWITCH_SYSTEM LD_SWITCH_SYSTEM_tmp #define LD_SWITCH_X_DEFAULT "-L/usr/local/lib" #endif #endif /* 0 */ /* arch-tag: 7e3f65ca-3f48-4237-933f-2b208b21e8e2 (do not change this comment) */