[C++-sig] Extension DLLs nonfunctioning with MSVC 7.1 (beta)

Niall Douglas s_sourceforge at nedprod.com
Thu Oct 23 19:53:55 CEST 2003

On 23 Oct 2003 at 12:56, Raoul Gough wrote:

> When I build the Python tests with MSVC (7.1 beta, version 13.10.2292)
> I get non-functioning DLLs. With a debug build, importing an extension
> module into Python aborts silently, and with the release builds it
> reports "ImportError: DLL load failed: Invalid access to memory
> location." I'm reasonably sure this was working a couple of weeks ago.
> I can report more details if necessary, but maybe somebody already has
> experience with this happening? A sample link and test run follows
> (lines manually wrapped). I'm using the indexing_v2 branch in
> boost/python/suite/indexing and libs/python, and the CVS head
> everywhere else. The problem occurs with the new indexing tests and
> the existing tests I've tried as well (e.g. crossmod_exception.py).

I can tell you it works here fine too, though I have a CVS version 
from about two weeks ago and I have BPL as a static library. And my 
wrappers are so big they break MSVC if you include any debug info at 

Try enabling kernel loader snaps - these will tell you where it's 
faulting. Find an article on MSDN by Matt Pietrek - ignore all that 
modern crap in MSDN, it's a 1996 or thereabouts article which 
typically MS have expunged from the latest MSDN's with MSVC7.1 :(


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