Log Message:
Update to 1.6.5. Greg Troxel and I did the same work here, so I'll commit
it before someone else does too :)

Changes since Guile 1.6.4 (changes in 1.6.5):

* Changes to the distribution

** Bugs have been fixed that prevented the (re)generation of psyntax.pp.

** SRFI-31 has been added (special form `rec' for recursive evaluation)

(use-modules (srfi srfi-31)) will now provide support for SRFI-31.
See the Guile info pages for more documentation.

** SRFI-39 has been added (parameter objects)

** Guile is now compiled with -fno-strict-aliasing when gcc is detected.

** The --enable-htmldoc option has been removed from 'configure'.

Support for translating the documentation into HTML is now always
provided.  Use 'make html'.

* Changes to the stand-alone interpreter

** GC bug fixed.

The use of scm_must_realloc() for memory which is scanned by GC, could
trigger a GC scan of a free()d block of memory. This is now fixed.

* Changes to Scheme functions and syntax

** array-map! and array-map-in-order! now require at least one source array.

Previously a call without any source arrays like (array-map! array
proc) would cause a segfault.  Now such calls are properly rejected.

** srfi-4 has been overhauled

Bugs have been fixed, and performance may be improved in certain
situations.  Among other things, large 64-bit values should print
correctly now.

** gethost no longer causes an exception when trying to throw an exception

** call-with-output-string doesn't segv on closed port

Previously call-with-output-string would give a segmentation fault if
the string port was closed by the called function.  An exception is
raised now.

** (ice-9 popen) duplicate pipe fd fix

open-pipe, open-input-pipe and open-output-pipe left an extra copy of
their pipe file descriptor in the child, which was normally harmless,
but it can prevent the parent seeing eof or a broken pipe immediately            \ 
                   and has now been fixed.

** source-properties and set-source-properties! fix

Properties set with set-source-properties! can now be read back
correctly with source-properties.

** SRFI-1 delete equality argument order fixed.

In the srfi-1 module delete and delete!, the order of the arguments to
the "=" procedure now matches the SRFI-1 specification.

** SRFI-19 date-week-number fix

date-week-number now correctly respects the requested day of week
starting the week.

* Changes to the C interface