sudois explicitly specified, all of these commands are run as your own user.
Install haskell-platform (includes ghc) and some depedencies:
% brew install haskell-platform pcre md5sha1sum
Check ghc version:
% ghc --version The Glorious Glasgow Haskell Compilation System, version 7.0.4
git-annex requires ghc 7.4. And installing trying to install git-annex without
an updated version yields a cryptic message about a
dependency. Install the dev version of ghc using brew:
% brew unlink ghc % brew install --devel ghc
Brew issues a warning that this version of haskell-platform will not work with the devel version of ghc, but I just ignored that for now.
Update the package list in the cabal package manager, which is specific to haskell libraries and programs:
% cabal update
Install git-annex via cabal:
% cabal install git-annex --bindir=$HOME/bin