geos fails to compile with gcc 4.1 i also tried the version bump i noticed in bug 120479 it fails also this patch attached is agianst it but should also apply to 2.1 series the errors looked to be very close if not the exact same thing
Created attachment 82334 [details, diff] geos-2.2.1-gcc41.patch
Looks good, let me know if you want me to apply.
I have just added the bumped version to portage and applied this patch. Thanks for your work guys.