Define i686 when TARGET=i686*
Define i686 when TARGET=i686*

cactorium/libc,rust-lang-nursery/libc,rust-lang/libc,rust-lang/libc,mneumann/libc,rust-lang-nursery/libc,rust-lang-nursery/libc,cactorium/libc,mneumann/libc,rust-lang/libc,mneumann/libc,cactorium/libc