I have a tool chain for an experimental processor, built starting with release 
or snapshot distributions of

        binutils-2.21
        cgen-20110901
        gcc-4.6.1
        newlib-1.19.0
        gdb 7.2

I'm using SVN for version control locally.

I'd like to upgrade it to a newer source base; but since it wasn't done by 
checking out from the FSF and Sourceware version-control systems, I'm wondering 
if there's any clever way to merge my tree or if I just have to bite the bullet 
and essentially take everything I've modified since version 1 in my source tree 
and import them into a new source tree?


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