Works for me in a Debian Sid with Gimp 2.6:

Cpan install Gimp::Eval

Running make for S/SJ/SJBURGES/Gimp-2.2pre1.tar.gz
...
Hopefully, Gimp is now correctly configured. you can now enter "make",
+ "make test" and "make install".
...
make -- OK...
All tests successful...
make test -- OK...
make install  -- OK
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