dev-embedded/libftd2xx-0.4.13-r1 in portage doesn't support x86_64. Reproducible: Always Steps to Reproduce:
Created attachment 184011 [details] Ebuild with support for amd64. I have attached an ebuild working on my amd64-machine.
Created attachment 184071 [details] libftd2xx-0.4.13-r1.ebuild.patch
that change is full of irrelevant noise ive added amd64 support myself in libftd2xx-0.4.16