Mailing-List: contact cygwin-apps-help AT sourceware DOT cygnus DOT com; run by ezmlm
Sender: cygwin-apps-owner AT sourceware DOT cygnus DOT com
List-Subscribe: <mailto:cygwin-apps-subscribe AT sources DOT redhat DOT com>
List-Archive: <http://sources.redhat.com/ml/cygwin-apps/>
List-Post: <mailto:cygwin-apps AT sources DOT redhat DOT com>
List-Help: <mailto:cygwin-apps-help AT sources DOT redhat DOT com>, <http://sources.redhat.com/lists.html#faqs>
Delivered-To: mailing list cygwin-apps AT sources DOT redhat DOT com
Date: Fri, 9 Feb 2001 08:47:08 -0500
From: Jason Tishler <Jason DOT Tishler AT dothill DOT com>
To: "Dr. Volker Zell" <Dr DOT Volker DOT Zell AT oracle DOT com>
Cc: cygwin-apps AT sources DOT redhat DOT com
Subject: Re: Cygwin 1.1.8 Python 2.1a2 Builds OOTB
Message-ID: <20010209084708.D980@dothill.com>
Mail-Followup-To: "Dr. Volker Zell" <Dr DOT Volker DOT Zell AT oracle DOT com>,
	cygwin-apps AT sources DOT redhat DOT com
References: <20010205124409 DOT K812 AT dothill DOT com> <kvpugs6n51 DOT fsf AT vzell DOT de DOT oracle DOT com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
User-Agent: Mutt/1.2.5i
In-Reply-To: <kvpugs6n51.fsf@vzell.de.oracle.com>; from Dr.Volker.Zell@oracle.com on Fri, Feb 09, 2001 at 01:45:14PM +0100
Organization: Dot Hill Systems Corp.

Volker,

On Fri, Feb 09, 2001 at 01:45:14PM +0100, Dr. Volker Zell wrote:
>     Jason>     configure --with-threads=no --with-libm= --with-suffix=.exe
> 
> OK. It works.

I'm glad that it works for you too.

> But when trying to build some additional packages I get errors of the
> following kind:
> 
> running build_ext
> building '_xmlplus.parsers.sgmlop' extension
> skipping extensions/sgmlop.c (build/temp.cygwin_nt-4.0-1.1.8-i686-2.1/sgmlop.o up-to-date)
> gcc -shared -Wl,--enable-auto-image-base build/temp.cygwin_nt-4.0-1.1.8-i686-2.1/sgmlop.o -L/usr/local/lib/python2.1/config -lpython2.1 -o build/lib.cygwin_nt-4.0-1.1.8-i686-2.1/_xmlplus/parsers/sgmlop.dll
> Cannot export _bss_end__: symbol not defined
> Cannot export _bss_start__: symbol not defined
> Cannot export _data_end__: symbol not defined
> Cannot export _data_start__: symbol not defined
> collect2: ld returned 1 exit status
> error: command 'gcc' failed with exit status 1
> 
> This is from
> 
>  o PyXML-0.6.3 - http://www.python.org/topics/xml/
> 
> But other packages give the same kind of errors.
> 
> Any hints ?

This is due to a missing DL_EXPORT macro needed for the shared extension
initialization function.  See the following for more details:

    http://sourceforge.net/patch/?func=detailpatch&patch_id=103185&group_id=5470

Using Modules/_curses_panel.c as an example, you need to change:

    void init_curses_panel(void)

to:

    DL_EXPORT(void) init_curses_panel(void)
 
I have submitted patches to Python CVS for the ones that I have come
across, but there are obviously more.  Please submit patches for the
ones that you find.

BTW, you may also run into the following problem:

    http://www.python.org/doc/FAQ.html#3.24

The above patch demonstrates how to fix this problem too.

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 DOT Tishler AT dothill DOT com
Hazlet, NJ 07730 USA                 WWW:   http://www.dothill.com