I'm working on updating the net/quagga package, but when I try 
extracting the new version using pax-as-tar, there's an error:

tar: Invalid header, starting valid header search.
tar: End of archive volume 1 reached
tar: Unexpected EOF on archive file
tar: Unexpected EOF on archive file
tar: Premature end of file on archive read


... the file extracts OK with GNU tar, however.  What's the proper way 
of handling this?

+j