musl gcc cross build

Due https://musl.cc not updating binaries over 2 years, but upstream git updating, rebuild musl-cross-make ourself, depends on upstream hashes

Local build

Clone upstream git

$ git clone --depth=1 https://git.zv.io/toolchains/musl-cross-make musl-cross

Copy config.mak.yourmodification to musl-cross/config.mak, config.mak reference
cd musl-cross
make -j$(nproc)
make install
The compiled binary at output path

The output path already portable copy to another system or bind mount to another container, etc.