SF patch 1167316:  doctest.py fails self-test if run directly.

fixes the crash seen in bug #1165761

POSIX is enabled.  This prevents the toolbox glue, all of Carbon,
and various other non-POSIX features from compiling.  The POSIX
symbols are  still used by default, so turning off the #define
doesn't hurt.

Additionally, linker flags have changed for Darwin 8, and are
different for Darwin 8/gcc4 (default) and Darwin 8/gcc3.3.

Approved by Anthony

and S16 is signed.  Duh.  Clarify surrounding text a bit and refer to
OSS docs.

  instead of raising a TypeError when interacting with other types.
  Allows other classes to successfully implement __radd__ style methods.

in Python 2.4).

full API of Optik 1.5a2 (which is what's included with Python 2.4.x).
Closes SF #1099324, partially addresses SF #993601.

support for posix semaphores.

Indicate to the user when this is an upgrade installation.
Make CHM file non-advertised.

Add default value for "whence" argument.

Reset internal buffers when seek() is called. This fixes SF bug #1156259.

the file system encoding.

functions, etc., had comments after the colon, and some other cases.
This patch take a simpler approach that doesn't rely on looking for a
':'. Test cases are not backported, as test_inspect.py has been
rewritten using unittest on the trunk.

Thanks Simon Percivall!

socket.gethostname() as a valid return value.

Also clarified the docs as they were a little hazy on the subject matter.

MSVCCompiler.initialize():  set self.initialized to True, as suggested
by AMK.  Else we keep growing the PATH endlessly, with each new C
extension built, until putenv() complains.

This doesn't appear to be an issue on the HEAD (MSVCCompiler initializes
itself via __init__() on the HEAD).

Also added a "2.4.1c2" section to NEWS.  Not meant to imply that Anthony
will do a 2.4.1c2 release, just needed to a place to put the news about the
MSVCCompiler bugfix.

- add support for additional markup: \leq, \textbar, \textit
- add a comment about the non-support for the Euro character