[sigc] Link error with 1.2.5 VC.NET 2003

["H. C." <sebh gmx de>]

Hi everyone!

I'm new to sigc++and have not yet managed to get it linked properly for my
apps (absolutely no compiler errors) using version 1.2.5 with VC++.NET 2003
(none of the examples worked either):

sigc-1.2.lib(node.obj) : warning LNK4217: locally defined symbol
?unreference NodeBase@SigC@@QAEXXZ (public: void __thiscall
SigC::NodeBase::unreference(void)) imported in function "public: void
__thiscall SigC::Node::clear(void)const " (?clear Node@SigC@@QBEXXZ)

sigc-1.2.lib(node.obj) : error LNK2019: unresolved external symbol
"__declspec(dllimport) const SigC::NodeBase::`vftable'"
(__imp_??_7NodeBase SigC@@6B@) referenced in function "public: __thiscall
SigC::NodeBase::NodeBase(void)" (??0NodeBase SigC@@QAE XZ)

Has anyone else encountered this problem yet? It's strange, I already
checked the mailing list archive, though found nothing related. I really
need help here.

Many thanks in advance!