Cannot compile app using Glib, Glibmm, libxml2, libxml++

[Tassilo Horn <heimdall uni-koblenz de>]

Hi!

I'm writing an application which has to parse a XML-file with SAX2.
Therefore I chose libxml++. It's very simple at the moment, but it
doesn't compile and I don't know why.

You can get the Code from my subversion repository if you want.

https://svn.uni-koblenz.de/heimdall/uni/studienarbeit/xmlbinary/
User:   anon
Pwd:    password

When I try to compile it I get the following errors:

-----------------------------------------------------------------------
In file included from /usr/include/glibmm-2.4/glibmm/ustring.h:25,
from /usr/include/libxml++-2.6/libxml++/exceptions/exception.h:26,
from /usr/include/libxml++-2.6/libxml++/exceptions/internal_error.h:25,
from /usr/include/libxml++-2.6/libxml++/libxml++.h:10,
from /[..snipped..]/svn/studienarbeit/xmlbinary/src/XMLParser.h:24,
from /[..snipped..]/svn/studienarbeit/xmlbinary/src/xmlbinary.cpp:29:
/usr/include/glib-2.0/glib/gunicode.h:156: \
        Fehler: »gsize« wurde nicht deklariert
/usr/include/glib-2.0/glib/gunicode.h:156: \
        Fehler: ISO-C++ verbietet Deklaration von »len« ohne Typ
/usr/include/glib-2.0/glib/gunicode.h:162: \
        Fehler: »gsize« wurde nicht deklariert
/usr/include/glib-2.0/glib/gunicode.h:162: \
        Fehler: ISO-C++ verbietet Deklaration von »result_len« ohne Typ
[...]
-----------------------------------------------------------------------

Translated to English:
        error: »gsize« was not declared
        error: ISO-C++ forbids declarations of »len« without type

You can get the full compiler output at
http://www.uni-koblenz.de/~heimdall/xmlbinary-log .

Things I include outside my project:
        -I/usr/lib/glib/include
        -I/usr/include/glib-2.0
        -I/usr/include/glibmm-2.4
        -I/usr/include/libxml++-2.6

What do I have to do?

Thanks in advance,
Tassilo