mk_fetch_unpack — Fetch and unpack archive
MODULES="... fetch ..."
mk_fetch_unpack URL=url DIR=dir
URL=urlThe URL where the archive can be found.
DIR=dirThe target directory to create by unpacking the archive.
FILES=files
An optional list of files, relative to dir, which will be created. Specifying this is optional, but it ensures that anything that depends on an unpacked file will depend on the archive being unpacked.