Failure to install database_gap in sage 5.5

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And the question is, of course, does anybody know why and what I might be able to do to fix it. This is sage version 5.5, built from source on ubuntu server x64 12.10. After the build finished, I successfully installed openssl and pyopenssl. But database_gap installation failed. As an additional note, I also tried the same thing with sage 5.5 on ubuntu desktop x64 10.04 with similar results.

I tried to install database_gap, as advised by the build from source readme, using the command:

./sage -i database_gap

And I got the results:

 Checking online list of Optional packages.
[.]
 Found database_gap-4.5.7
 Downloading database database_gap-4.5.7.spkg.
[ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .]
database_gap-4.5.7
================================
Extracting package /home/sage-5.5/spkg/optional/database_gap-4.5.7.spkg
-rw-rw-r-- 1 sage sage 59654144 Dec 29 10:53 /home/sage/sage-3.3/spkg/optional/database_gap-4.5.7.spkg
tar: Skipping to next header
tar: Exiting with failure status due to previous errors
Error: failed to extact /home/sage-5.5/spkg/optional/database_gap-4.5.7.spkg