fix linking error on i586 Try to fix this linking error on i586 in cross: https://travis-ci.org/japaric/cross/builds/302095949#L8670 The problem is that `std` is built in Ubuntu 16.04 and `cross` uses a linker from 12.04. Currently this fix solves the problem for `i686-musl` making it "supercompatible", this PR applies the fix to `i586` as well. The cross PR is here: https://github.com/japaric/cross/pull/157