Installing Haskell packages on Mac

问题:

I can't seem to get a few Haskell packages to install on my Mac (10.6.8). I first tried Happstack and it failed and then I tried Snap.

Sometimes when I run ghci I get a segmentation fault.

Other times it works and goes like this:

GHCi, version 7.4.2: http://www.haskell.org/ghc/  :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Prelude>

When trying to get Snap:

....
....
....
Loading package vector-0.10.0.1 ... linking ... done.
Loading package zlib-0.5.4.0 ... linking ... done.
Loading package zlib-bindings-0.1.1.3 ... linking ... done.
Loading package zlib-enum-0.2.3 ... linking ... done.
Loading package snap-core-0.9.3.1 ... linking ... done.
Loading package snap-server-0.9.3.3 ... linking ... done.
Loading package directory-tree-0.11.0 ... linking ... done.
cabal: Error: some packages failed to install:
snap-0.11.2 failed during the building phase. The exception was:
ExitFailure 11

I have seen this problem a few times but nothing really solved it for me. Any ideas?

回答1:

Have you tried using homebrew? It handles the dependencies for you. I am on Mac OS X 10.7.5, but these instructions should work for you.

Using homebrew, you can install haskell-platform using the brew command. It will take a while. The compile stage for haskell-platform took 15 minutes.

$ brew search haskell
haskell-platform

$ brew install haskell-platform
==> Installing haskell-platform dependency: ghc
==> Downloading https://downloads.sf.net/project/machomebrew/Bottles/ghc-7.4.2.lion.bottle.1.tar.gz
######################################################################## 100.0%
==> Pouring ghc-7.4.2.lion.bottle.1.tar.gz
==> Caveats
This brew is for GHC only; you might also be interested in haskell-platform.
==> Summary