I have just installed GHC 7.10.1 and cabal-install 220.127.116.11. The problem
is that cabal-install often hangs when trying to download a package.
With --verbose=3, I see that it gets a “301 Moved Permanently” from the
server, tries to redirect, shows “Recovering connection to
hackage.haskell.org”, and then hangs.
Is there anything I can do to work around this issue? At the moment, I
cannot work with my new GHC installation, since it is virtually
impossible to install packages with cabal-install.