On 26 July 2014 08:55, Nikita Karetnikov <nikita@karetnikov.org> wrote:
> What version of network is it?  I ran ‘grep -r “host lookup failure”’ on
> the source of 2.5.0.0 and didn’t find anything.

$ cabal sandbox hc-pkg list | grep network
    network-2.5.0.0

It probably uses perror or something like it.