@civodul @janneke As @stikonas says, musl is just another package.
Why does it feel right to add TinyCC but we prefer to avoid Musl?
In the same way it would be great to use MesCC to build GCC4.6.4 but that's not possible right now for two reasons: it would take forever to build and it needs many improvements in MesCC to make this possible.
Same thing happens with MeslibC. MeslibC is just very problematic at this very moment.