On Thu, May 8, 2014 at 8:22 PM, Simon Peyton Jones <simonpj@microsoft.com> wrote:

On a machine that doesn't need to use a proxy server, what should $http_proxy be set to?

It's a Maybe (Maybe String) problem. Blame Cabal for not ignoring an empty http_proxy. The *nix programs I've tried treat empty as unset.

The solution is: unset HTTP_PROXY.

-- Kim-Ee