MAC 10.X 安装Haskell的方法

MAC 10.9 安装Haskell
1.已安装Java
2.已安装Xcode5以上或者CLI

1执行ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"
2.执行echo export PATH='/usr/local/sbin:$PATH' >> ~/.bash_profile
3.下载ghc-clang-wrapper chmod a+x  ghc-clang-wrapper
4.复制到/usr/bin目录下，使用sudo执行
提示：PATCHED: /Library/Frameworks/GHC.framework/Versions/7.6.3-x86_64/usr/lib/ghc-7.6.3/settings
5.执行brew update
6.执行brew tap homebrew/dupes
7.翻墙执行brew install apple-gcc42
8.执行which gcc-4.2 如果提示没有link，执行 brew link apple-gcc42
9.执行cabal install cabal-install
10.执行cabal install gtk2hs-buildtools
11.执行cabal install leksah