Void Linux package generation with xbps-src

1 - download void-packages with git
2 - read Manual.md
3 - copy the directoy srcpkgs to void-packages
4 - modify the checksum= in the void-packages/srcpkgs/gaw3/template 
    you get the checksum with sha256sum gaw3-20170716.tar.gz or
    from the file gaw3-20170716.tar.gz.sum
5 compile the package with:
    ./xbps-src pkg gaw3
