Hi,
cabal-install-1.20.0.0 was released this week and I built it for Fedora 19 and 20 in copr:
https://copr.fedoraproject.org/coprs/petersen/cabal-install/
It is Haskell statically linked so it can be installed easily and used with current fedora releases though you might want to "cabal install Cabal" [1] to use the latest features like sandboxing.
Jens
[1] see also https://copr.fedoraproject.org/coprs/petersen/Cabal
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