Fix various small issues with the multiple-value implementation. lisp/ChangeLog addition: 2009-08-31 Aidan Kehoe <kehoea@parhasard.net> * byte-optimize.el (byte-optimize-form-code-walker): Be careful about discarding multiple values when optimising #'prog1 calls. (byte-optimize-or): Preserve any trailing nil, as this is a supported way to explicitly discard multiple values. (byte-optimize-cond-1): Discard multiple values with a singleton followed by no more clauses. * bytecomp.el (progn): (prog1): (prog2): Be careful about discarding multiple values in the byte-hunk handler of these three forms. * bytecomp.el (byte-compile-prog1, byte-compile-prog2): Don't call #'values explicitly, use `(or ,(pop form) nil) instead, since that compiles to bytecode, not a funcall. * bytecomp.el (byte-compile-values): With one non-const argument, byte-compile to `(or ,(second form) nil), not an explicit #'values call. * bytecomp.el (byte-compile-insert-header): Be nicer in the error message to emacs versions that don't understand our bytecode. src/ChangeLog addition: 2009-08-31 Aidan Kehoe <kehoea@parhasard.net> * eval.c (For, Fand): Don't declare val as REGISTER in these functions, for some reason it breaks the non-DEBUG union build. These functions are only called from interpreted code, the performance implication doesn't matter. Thank you Robert Delius Royar! * eval.c (Fmultiple_value_list_internal): Error on too many arguments. tests/ChangeLog addition: 2009-08-31 Aidan Kehoe <kehoea@parhasard.net> * automated/lisp-tests.el (Assert-rounding): Remove an overly-verbose failure message here. Correct a couple of tests which were buggy in themselves. Add three new tests, checking the behaviour of #'or and #'and when passed zero arguments, and a Known-Bug-Expect-Failure call involving letf and values. (The bug predates the C-level multiple-value implementation.)

/* Synched up with: FSF 19.31. */

#include "sunos4-0.h"

/* 4.1.1 makes these system calls interruptible.  */

#define INTERRUPTIBLE_OPEN
#define INTERRUPTIBLE_CLOSE
#define INTERRUPTIBLE_IO

/* Cause the compilation of oldxmenu to use the right -I option.  */
#define OLDXMENU_OPTIONS CFLAGS=C_SWITCH_SYSTEM

#if 0 /* RMSmacs */
FSF says the following, but apparently the HAVE_RES_INIT stuff takes
care of it properly?
/* #if 0 This isn't right.  Apparently some sites do have -lresolv
	 but don't use that.  On those systems, the code below loses.
	 There's no way to win automatically unless someone
	 figures out a way of determining automatically which way is right
	 on any given system.  */
#endif

/* Some systems do not run the Network Information Service, but have
   modified the shared C library to include resolver support without
   also changing the C archive library (/usr/lib/libc.a).  If we
   detect the presence of libresolv.a, use -lresolv to supplement libc.a.

   We used to have #ifdef HAVE_GETHOSTNAME is to prevent configure from
   setting libsrc_libs to -lresolv in lib-src/Makefile.  But nowadays
   configure is smarter about computing libsrc_libs, and would not
   be fooled.  Anyway, why not use -lresolv in lib-src?  */
/* #ifdef HAVE_GETHOSTNAME */
/* XEmacs change: -lresolve should be added only if we have RES_INIT,
   not if we don't */
#ifdef HAVE_RES_INIT
#define LIBS_SYSTEM "-lresolv"
#endif
/* #endif */

#if 0 /* Not necessary, since SYSTEM_MALLOC is defined in sunos4-0.h.  */
/* Tell GNU malloc to compensate for a bug in localtime.  */
#define SUNOS_LOCALTIME_BUG
#endif

/* Define dlopen, dlclose, dlsym.  */
#define USE_DL_STUBS

/* This appears to be broken on SunOS4.1.[123] */
#define BROKEN_SIGIO