[vtkusers] Python 2.1 + VTK (CVS) + Windows... Anyone ?

[David Gobbi]

Hi Sebastien,

This is definitely a dll import/export problem.  The issue is the
VTK_EXPORT preprocessor symbol not being set correctly, or not
being used to declare a class.

Try editing vtkPythonUtil.h and changing

class vtkPythonCommand : public vtkCommand

to

class VTK_EXPORT vtkPythonCommand : public vtkCommand

I don't know why this error would have just appeared now.

 - David

--
  David Gobbi, MSc                    dgobbi at irus.rri.on.ca
  Advanced Imaging Research Group
  Robarts Research Institute, University of Western Ontario

On Tue, 8 May 2001, Sebastien BARRE wrote:

> Hi
>
> In order to match the (incoming) new VTK tree, I'm upgrading from Python
> 2.0 to Python 2.1.
>
> I had no pb until now with Python 2.0, but the CVS failed to build with
> 2.1, with the following errors :
>
>     Creating library ..\lib/vtkpython.lib and object ..\lib/vtkpython.exp
> LINK: warning LNK4049: locally defined symbol "_PyVTKClass_Check" imported
> LINK: warning LNK4049: locally defined symbol "_PyArg_VTKParseTuple" imported
> [...]
>
> vtkpythonotherobjs.lib(vtkPythonUtil.obj): error LNK2001: unresolved
> external s
> ymbol "__declspec(dllimport) const  vtkPythonCommand::`vftable'"
> (__imp_??_7vtkP
> ythonCommand@@6B@)
> ..\lib/vtkpython.dll: fatal error LNK1120: 1 unresolved externals
> NMAKE: fatal error U1077: 'link.exe' : return code '0x460'
>
>
> Looks strange (once again, a dll export/import problem ?). I've checked the
> "What's new in Python 2.1", but I do not see any backward incompatibility
> at the moment :(
> http://www.amk.ca/python/2.1/
> http://sourceforge.net/project/shownotes.php?release_id=31464
>
> Thanks
> My conf : Windows 2000 SP1, Python 2.1 (binary install), latest VTK CVS
>
>
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