After some instructions form solar: media-libs/libmpeg3-1.5.2 (/usr/lib/libmpeg3.so)
I'm pretty sure we fixed these in ~arch. Can you please test that.
25 Apr 2006; Diego Petten
25 Apr 2006; Diego Pettenò <flameeyes@gentoo.org> libmpeg3-1.5.2-r3.ebuild: Add patch to fix textrel/non-PIC aware code, thanks to PaX Team and solar.