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. */

/* machine description file for Mips running RISCOS version 4.  */

#include "mips.h"

/* The following line tells the configuration script what sort of 
   operating system this machine is likely to run.
   USUAL-OPSYS="note"

NOTE-START
Use -opsystem=usg5-2-2 normally, or -opsystem=bsd4-3 with the BSD
world.
NOTE-END  */

#if 0
/* Define MIPS2 if you have an R6000 or R4000.  */
#define MIPS2
#endif

#ifdef __GNUC__
#define C_DEBUG_SWITCH "-g -O"
#else
/* We used to have  -systype bsd43, but a configure change
   now takes care of that option.  */
#ifdef MIPS2
#define C_DEBUG_SWITCH "-DMips -g3 -Wf,-XNd4000 -O -Olimit 2000 -mips2"
#else
#define C_DEBUG_SWITCH "-DMips -g3 -Wf,-XNd4000 -O -Olimit 2000"
#endif
#endif

#ifdef TERMINFO
#undef TERMINFO
#endif

#define START_FILES "pre-crt0.o /lib/crt1.o"
/* Used to have -lisode, but jlp@math.byu.edu says remove it
   (for RISCOS 4.52).  */
/* ethanb@ptolemy.astro.washington.edu says crtn.o uses _ctype
   and therefore we must search libc again after crtn.o.
   The -L is used to force second -lc to find the sysv version
   of libc.a, which is needed because the BSD libc.a
   doesn't have _ctype.  */
#define LIB_STANDARD "-lc /lib/crtn.o -L/usr/lib -lc"


#define COFF
#undef LD_SWITCH_MACHINE
#define LD_SWITCH_MACHINE "-systype bsd43 -g3 -D 800000"

#define NO_MODE_T

/* These are needed on Riscos 4.0.
   It appears that's the only system which uses mips4.h and defined BSD.  */
#ifdef BSD
#undef HAVE_XRMSETDATABASE
#undef HAVE_XSCREENRESOURCESTRING
#endif