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) */