tla fails to build with gcc 4.0.0, because of a variable declared extern, but defined static. The variable (vu_virtual_null_vtable) isn't used in other files, so I changed extern to static. This makes it work with gcc 4.0.0. I'll attach the patch and the modified ebuild.
Created attachment 57755 [details, diff] tla-1.3.1_p1-gcc4.patch
Created attachment 57756 [details] modified ebuild this is the ebuild for tla-1.3.1_p1 that applies the patch.
Thank you for the report. Fixed in cvs.