Cygwin plpython patch

See attached for a small patch that enables plpython to build cleanly
under Cygwin.  This patch together with my previous Python patch:

    http://postgresql.readysetnet.com/mhonarc/pgsql-patches/2001-05/msg00075.html

enables full Python support (i.e., configure --with-python) for Cygwin
PostgreSQL.

See below for some more details and one issue.

On Mon, May 14, 2001 at 10:26:39AM -0400, Jason Tishler wrote:
> On Fri, May 11, 2001 at 03:54:06AM +0200, Ernesto Revilla wrote:
> > now I did it, so I wanted to ask
> > 1. if somebody could merge my makefile with the original one
> > 2. put the plpython into the postgres source tree 'pl' (as experimental or
> > whatever)
>
> It appears that plpython was recently (i.e., 2001/05/09) added to
> PostgreSQL CVS.  So the above is not necessary.
>
> However, a small patch is necessary for plpython to build cleanly under
> Cygwin.  Please get the latest PostgreSQL from CVS and apply the
> attached patch.  I ran the supplied test.sh and all tests passed with
> the exception of the oid related ones (which is to be expected).
>
> I would be very interested to hear if plpython works for you in a real
> application, so please let me know.
>
> I intend improve my patch as follows:
>
> 1. add -DUSE_DL_IMPORT to CPPFLAGS in a cleaner way

I moved this hunk from src/pl/plpython/Makefile to
src/makefiles/Makefile.win to help keep all (well most) of the Win32
crud in one place.

> 2. deal with the different socket module name in Python 1.5.x and 2.x,
> if possible

My patch contains a hunk for src/pl/plpython/feature.expected since
Python 2.1's underlying socket (shared extension) module is "_socket"
instead of "socket".  I guess one could have two different
feature.expected files, one for each version, but I wasn't sure that it
was worth the effort.

> I will also test it out on a non-Cygwin platform to make sure that I
> didn't break anything on a UNIX platform.

I tested the patch under Linux without any ill effects.

> Once the above is completed, I will submit the patch to pgsql-patches
> for consideration.

Thanks,
Jason

--
Jason Tishler
Director, Software Engineering       Phone: +1 (732) 264-8770 x235
Dot Hill Systems Corp.               Fax:   +1 (732) 264-8798
82 Bethany Road, Suite 7             Email: Jason.Tishler@dothill.com
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