I've finally dropped the x86 keywords for sci-libs/lrslib because it hasn't been been usable (doesn't even build) on x86 for years, see bug #771675. As a result, I had to drop the x86 keywords for sci-mathematics/polymake, which has a conditional dep on the former with USE=lrs. It should be possible to make lrslib work on 32-bit systems, but they have a hand-written makefile that makes things interesting. If anyone cares, please take a shot at lrslib and then re-keyword them both. Otherwise, these are pretty niche applications and I doubt many people are using them on x86 (but you never know).
