New CLISP version

[haible (Bruno Haible)]

Once more, there is a new version of CLISP at the usual place:
ma2s2.mathematik.uni-karlsruhe.de:/pub/lisp/clisp/source .

The list of supported platforms now include SGI Irix 4.

The port to VMS stagnates, being finished at 85%. Anyone with access to a
powerful VMS machine wants to continue?

Excerpt from the change log:

User visible changes
--------------------

* X3J13 vote <89> is implemented: (SETF symbol) is now a valid syntax for a
  function name in (funname ...), (FUNCTION funname), (DEFUN funname ...),
  (COMPILE funname ...), (DISASSEMBLE funname), (ED funname), FLET, LABELS etc.
  New function FDEFINITION.

* X3J13 vote <173> is implemented: New special form SYMBOL-MACROLET. The
  macroexpansion environment passed to macro expanders and to MACROEXPAND-1,
  MACROEXPAND, GET-SETF-METHOD, GET-SETF-METHOD-MULTIPLE-VALUE now comprises
  both the variable environment and the function environment.
  New macro DEFINE-SYMBOL-MACRO.

* New macro PRINT-UNREADABLE-OBJECT.

* Fixed a bug: The string comparison functions STRING<, STRING>, STRING<=,
  STRING>=, STRING/=, STRING-LESSP, STRING-GREATERP, STRING-NOT-GREATERP,
  STRING-NOT-LESSP, STRING-NOT-EQUAL now return the index of the first mismatch
  instead of T.

* Fixed a bug: The functions REMOVE-DUPLICATES and DELETE-DUPLICATES produced
  an out-of-bounds error when called on a small sequence, with :FROM-END T
  argument and without :END argument.

Portability
-----------

* Updated support for DJGPP.

Other modifications
-------------------

* The macros SETF, PUSH, POP, PUSHNEW have been completely rewritten.

* Changed internal representation of special form handlers: They now consume
  regular memory. This frees one type tag.

* Miscellaneous documentation updates.


                    Bruno Haible
                    haible@ma2s2.mathematik.uni-karlsruhe.de