I had two MIPS-related hiccups with this:
- the musl-upstream `musl-gcc` wrapper script has a bug that drops compiler arguments (patch included here; hopefully we can remove in the future?)
- QEMU couldn't run the resulting MUSL binaries until I applied an update to my binfmt magic/mask (https://bugs.debian.org/1041597, bb0811e353) - it also runs just fine on real musl hardware
Tianon Gravi