Re: [Swig-user] Newbie using SWIG with BCC and Windows XP

[Alun G. <alu...@ds...>]

At 13:03 25/05/2007, you wrote:
>From: swi...@li...
>[mailto:swi...@li...] On Behalf Of
>Alun Griffiths
> >
> > c:>swig -python example.i
> >
> > seems to work as does
> >
> > c:>bcc32 -c -Ic:\python24\include -Ic:\borland\bcc55\include example.c
>example_wrap.c
> >
> > But when I try to compile the .OBJ files to .EXE using
> >
> > c:\bcc32 -Lc:\python24\lib -Ic:\borland\bcc55\lib example.obj
>example_wrap.obj
> >
> > I get a whole stack of errors related to "unresolved externals".  For 
> example
> >
> > Error: Unresolved external 'main' referenced from 
> c:\borland\bcc55\lib\c0x32.obj
>
>You have to have a main() to run your program.  Whatever you have in
>example.c, you don't have a main().

Thanks for that - none of the examples that came with SWIG had a MAIN 
function so it had not occurred to me to use one.  Any idea why the example 
functions don't have a MAIN?


> > Error: Unresolved external '_PyExc_MemoryError' referenced from
> > c:\temp\example_wrap.obj
>
>You have to link against the python library.  You've added a reasonable
>library path entry (-Lc:\python24\lib), but you haven't told the linker
>to link against the python library.  Try the following:
>
>c:\bcc32 -Lc:\python24\lib -Ic:\borland\bcc55\lib -lpython24.lib
>example.obj example_wrap.obj
>
>I have no idea what the correct BCC option is for specifying a library, 
>but I guessed.

Thanks for that also.  With BCC32, adding PYTHON24.LIB to the list of files 
does the trick.  One little twist though - BCC needs LIB files in OMF 
format whereas my Python LIB files were in COFF format.  The BCC utility 
COFF2OMF sorts this one out.

Best regards

Alun Griffiths