gzip -l problem

[T. Horsnell]

I think 'gzip -l' is having trouble reporting statistics
on files whose uncompressed size is > 4Gbytes. Has anyone
else seen this problem? Do I contact Gnu about this?
Cheers,
Terry.

alf1_tsh> gzip -l /scr0/boris/*.gz
compressed  uncompr. ratio uncompressed_name
2556072487 596983808 -328.1% /scr0/boris/Anopheles_gambiae_FASTAruns.tar
1159485670 4174428160  72.2% /scr0/boris/Apis_mellifera_FASTAruns.tar
2510639403 550125568 -356.3% /scr0/boris/Caenorhabditis_elegans_FASTAruns.tar
2128120566 3518132224  39.5% /scr0/boris/Drosophila_ananassae_FASTAruns.tar
2618523155 506277888 -417.2% /scr0/boris/Drosophila_melanogaster_FASTAruns.tar
2138507079 3865974784  44.6% /scr0/boris/Drosophila_mojavensis_FASTAruns.tar
1699621242 1498527744 -13.4% /scr0/boris/Drosophila_pseudoobscura_FASTAruns.tar
1592022108 1111363584 -43.2% /scr0/boris/Drosophila_simulans_FASTAruns.tar
2059666954 3298607104  37.5% /scr0/boris/Drosophila_virilis_FASTAruns.tar
2363369933  76412928 -2992.9% /scr0/boris/Drosophila_yakuba_FASTAruns.tar
20826028597 19196833792 - 8.4% (totals)

e.g. if I gunzip /scr0/boris/Drosophila_yakuba_FASTAruns.tar,
I get an 8Gbyte uncompressed file.

and I suspect all the negative ratios ars for files
which would have uncompressed to > 4Gbytes.