xalan build is failing

i checked out the latest code from Trunk for both xerces and xalan.

I selected "Treat Wchar_t as built in type to no..

Now I am getting thidcompiling error

d:\downloads\xalan\src\xalanc\xalantransformer\XalanDefaultDocumentBuilder.hpp(95) : error C2259: 'xalanc_1_10::XalanSourceTreeContentHandler' : cannot instantiate abstract class
due to following members:
'void xercesc_3_0::ContentHandler::characters(const XMLCh *const ,const XMLSize_t)' : is abstract
D:\downloads\xerces\src\xercesc/sax2/ContentHandler.hpp(104) : see declaration of 'xercesc_3_0::ContentHandler::characters'
'void xercesc_3_0::ContentHandler::ignorableWhitespace(const XMLCh *const ,const XMLSize_t)' : is abstract
D:\downloads\xerces\src\xercesc/sax2/ContentHandler.hpp(168) : see declaration of 'xercesc_3_0::ContentHandler::ignorableWhitespace'
'void xercesc_3_0::LexicalHandler::comment(const XMLCh *const ,const XMLSize_t)' : is abstract
D:\downloads\xerces\src\xercesc/sax2/LexicalHandler.hpp(80) : see declaration of 'xercesc_3_0::LexicalHandler::comment'
XalanSourceTreeWrapperParsedSource.cpp

d:\downloads\xalan\src\xalanc\xalantransformer\XalanDefaultDocumentBuilder.hpp(95) : error C2259: 'xalanc_1_10::XalanSourceTreeContentHandler' : cannot instantiate abstract class
due to following members:
'void xercesc_3_0::ContentHandler::characters(const XMLCh *const ,const XMLSize_t)' : is abstract
D:\downloads\xerces\src\xercesc/sax2/ContentHandler.hpp(104) : see declaration of 'xercesc_3_0::ContentHandler::characters'
'void xercesc_3_0::ContentHandler::ignorableWhitespace(const XMLCh *const ,const XMLSize_t)' : is abstract
D:\downloads\xerces\src\xercesc/sax2/ContentHandler.hpp(168) : see declaration of 'xercesc_3_0::ContentHandler::ignorableWhitespace'
'void xercesc_3_0::LexicalHandler::comment(const XMLCh *const ,const XMLSize_t)' : is abstract
D:\downloads\xerces\src\xercesc/sax2/LexicalHandler.hpp(80) : see declaration of 'xercesc_3_0::LexicalHandler::comment'

can some one help me out?