> > > 
> > > it looks like 64bit vs 32bit problem, you have to compile all libraries for the same architecture. Maybe, make clean to 
> > > remove all precompiled object files .o and recompile it again. Try to compile first that simple example without wxWidgets.
> > > 
> > > Martin
> > 
> > 
> > Good point, but all libraries are already compiled to 32 bits, since the laptop is running at 32 bits. Unless you mean that I
> > have to convert to 64 bits, but this means to change all content of the PC, and I don't want to do this. Can the applications
> > run with 32 bits or do they need 64 ? 
> > 
> > Thanks,
> > Enrico
> 


> There is no specific reason to run it on 64 bits, 

Good.

> so just all libraries have to match, that's all. But the original Makefile has been written for 64 bits, so it might need some 
> adjustments.

Ok, but I don't understand where is the point to correct. 64 bits do not appear explicitally (at least to me, who am not a drake of programming ...) 
neither in the Makefile neither in the (few) source files I have examined.

Thanks again,
Enrico