Broken --with-external-tar on gbuild

[Tomáš Chvátal]

Hi,
some of the internal modules I build for suse rpm fail to build not locating 
their tarball.

The specified directory is correct but the gbuildified pkgs always checked 
lo/src ignoring the TARFILE_LOCATION definition.

Simple workaround is to create symlink from TARFILE_LOCATION to lo/src, but I 
would more like to see it fixed correctly.

Cheers

Tom