On Sat, Apr 25, 2015 at 7:46 PM, Peng Yu <pengyu...@gmail.com> wrote:

> I don't have cabal. How to install cabal? Do I also install with MacPorts?


Turns out if you do that you end up with hs-mtl and friends which will
conflict with yesod's dependencies. You'll probably have to do an install
from
https://www.haskell.org/cabal/release/cabal-install-1.22.0.0/cabal-1.22.0.0-x86_64-apple-darwin-mavericks.tar.gz
(apparently there are no binary builds for non-Mavericks, so if you need
that then you have a problem :/ )

Or you can remove the MacPorts-based ghc stuff and do an install as
recommended by https://stackage.org and make certain it can't find any
MacPorts-installed library because that will lead to libiconv conflicts.

Apparently the yesod/Stackage folks think this insanity is a good thing.

-- 
brandon s allbery kf8nh                               sine nomine associates
allber...@gmail.com                                  ballb...@sinenomine.net
unix, openafs, kerberos, infrastructure, xmonad        http://sinenomine.net
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