CentOS - Apr 2010 - is there easy way to upgrade gtk on centos 4.8?

Hello,

I need to use wxPython-src-2.8.10.1 with GraphicContext support which requires
gdk_cario_xxx APIs introduced from GTK 2.8.

Is there any easy way to upgrade gtk since there are lots of dependences? I ever
tried yum but it can not upgrade GTK.

Thanks.

- Tommy
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