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Re: building Python extension modules - crash on import
- To: Peter Bienstman <Peter dot Bienstman at rug dot ac dot be>
- Subject: Re: building Python extension modules - crash on import
- From: Jason Tishler <jason at tishler dot net>
- Date: Tue, 7 Aug 2001 16:32:59 -0400
- Cc: nhv at cape dot com, cygwin at cygwin dot com
- Organization: Dot Hill Systems Corp.
On Tue, Aug 07, 2001 at 11:36:46AM +0200, Peter Bienstman wrote:
> > BTW, the USE_DL_IMPORT macro, etc. is set automatically if the Cygwin
> > Python extension is built via the Distutils or Misc/Makefile.pre.in
> > method. My recommendation is to try to use Distutils, if possible,
> > when building Python extensions.
> Actually, now that you bring this up, here are my unsuccessful experiences
> with cygwin python distutils. (Not sure if this is going off-topic here,
> might be better suited for a distutils mailing list.)
You are correct that this is more appropriate for the Distutils list...
> $python setup.py -build --compiler-cygwin
> Weird, especially since -L/usr/lib/python2.1/config -lpython2.1 is in the
> command line. Also note that gcc is used rather g++, although the extension
> is cpp. There is also no trace of USE_DL_IMPORT.
One should not specify --compiler=cygwin when building Cygwin Python
> Now, if I omit --compiler=cygwin:
> $ python setup.py build
> The macro USE_DL_IMPORT appears, and now the fact that we use gcc for
> linking bites us since it does not link in libstdc++. I'm sure this could
> probably be resolved by including libstdc++ in setup.py, but that's not
> really an out-of-the-box approach.
Sorry, but I'm not a Distutils expert. Possibly, there is a way to tell
Distutils to using "g++" instead of "gcc"? Otherwise, you can always
add libstdc++ to your setup.py. Does your setup.py (without libstdc++)
work on other platforms?
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