I think it all works ok if the object files goes the normal way, the gnu linker knows what to do with those symbols when it links with the gcc lib. But for some reason (template haskell?) the ghc linker gets involved when compiling the vector library, and it pukes on those symbols.

I hope they can just be done away with at the source, that is to make gcc generate the assembly primitives. GHC should already be built with i686, but does that reach ghc-prim?