Re: [wxCode-users] Can't compile my own component in Linux. Works fine with VS C++ 2005

[<msz...@ya...>]

El Jueves, 8 de Febrero de 2007 12:27, John Labenski escribi=F3:
> On 2/8/07, Mat=EDas Szeftel <msz...@ya...> wrote:
> > Hi wxCoders!
> > I hope you can help me. This might be a more c++ related question but I
> > feel that you are the only ones that can help me. HELP!!! :(
> >
> > I'm tryng to comile my component (wxActiveRecordGenerator: activerecord
> > module in wxCode CVS).
> >
> > I'm in Kubuntu using wx2.8 and gcc 4.1 and DatabaseLayer 1.6. I'm having
> > linking errors when doing a "make -f GNUmakefile".
> >
> > Hope you can help...
> >
> > Regards Mat=EDas.
> >
> > This is the output:
> >
> > btw: referencia a `vtable for xxxx' sin definir =3D undefined reference=
 to
> > `vtable for xxxx'
> > All the methods are defined  so I really don'tget the error
> > messages...and I have no virtual functions. I should be getting linker
> > errors against DatabaseLayer because I haven't compiled it yet.
> >
> > gnu/wxActiveRecordGenerator_DatabaseConnectionDlg.o: In function
> > `DatabaseConnectionDlg::DatabaseConnectionDlg(wxWindow*, int, wxString
> > const&, wxPoint const&, wxSize const&, long)':
> > DatabaseConnectionDlg.cpp:(.text+0x27af): referencia a `vtable for
> > DatabaseConnectionDlg' sin definir
> >
> >
> > gnu/wxActiveRecordGenerator_RelationPropertiesDlg.o: In function
> > `RelationPropertiesDlg::RelationPropertiesDlg(wxWindow*, int, wxString
> > const&, wxPoint const&, wxSize const&, long)':
> > RelationPropertiesDlg.cpp:(.text+0x2223): referencia a `vtable for
> > RelationPropertiesDlg' sin definir
>
> For starters you may want to try adding virtual destructors for these
> classes, just an empty one like this. I think I've seen error messages
> like these before and I'm guessing that they are from the base class
> having a vtable, but your subclassed class doesn't explicitly have
> one.
>
> in DatabaseConnectionDlg.h add
> virtual ~DatabaseConnectionDlg() {}

	I did this John. But I made it a non-inline virtual destructor. Because I'=
ve=20
read that the vtable shall be alocated in the first non-inline virtual=20
function.
	Anyway now I'm getting undefined reference to vtable for the destructors. =
:(
=2E.. plus the previous errors.

	I do think you are pointing the right way here, but I don't know what to=20
do...

Thanks,=20
	Matias Szeftel

	

	
		
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