ar nm ranlib need symlink

ar, nm, ranlib need symlink in favour of standard way.

sudo ln -s /usr/bin/x86_64-alpine-linux-musl-gcc-ar /usr/bin/x86_64-alpine-linux-musl-ar
sudo ln -s /usr/bin/x86_64-alpine-linux-musl-gcc-nm /usr/bin/x86_64-alpine-linux-musl-nm
sudo ln -s /usr/bin/x86_64-alpine-linux-musl-gcc-ranlib /usr/bin/x86_64-alpine-linux-musl-ranlib