Nevermind, found it myself: just extract the data tarballs at the same place, and remove all .sha512 and .md5 extensions from the source tree. Then you have the complete source and no network connection is required for building.
Nevermind, found it myself: just extract the data tarballs at the same place, and remove all .sha512 and .md5 extensions from the source tree. Then you have the complete source and no network connection is required for building.