In any case, the link below describes in detail the failure I'm getting. I hope and trust that apt-get install haskell-platform is still the preferred way to install?

On Thursday, March 19, 2015 at 11:10:45 PM UTC-7, David Gladstein wrote:

http://askubuntu.com/questions/597278/haskell-platform-unmet-dependencies

I'm installing on a newly-built system. I looked at the haskell.org download instructions, and I couldn't find anything that made sense. 

apt-get install haskell-platform worked about a month ago. 

Does anyone know what happened?