musl is not a compiler, its a libc, and I doubt voidlinux could be built without gcc. I started working on distro and tried to avoid GNU entirely. I ended up setting up a cross compiler based on musl and PCC but the sad truth is that too much software rely on GCC. Be it GCC itself, or the binutils (ld, as, ...).

Of your interrested, take a look at this: http://blog.z3bra.org/2015/08/cross-comp...-musl.html

But I am still really interrested in such thing, and I'm glad a new member brings the subject on the table! So welcome here, and I hope we'll be able to discuss it soon!