I'd like to mention that I too was bit by this one on Debian. I don't have a 32-bit development environment installed; why would I? I'm building primarily for myself, and if I did have to target a 32-bit environment, I'd likely have to mess with more stuff then just the compiler. If you can't find a way to detect this error, I can't imagine many people would have a problem with turning off multilibs on x86-64; it's something of a minority setup.
-- Kie ekzistas vivo, ekzistas espero.
