How to Install Haskell Environment

mostly ref http://blog.csdn.net/albert_lee/archive/2010/04/10/5469933.aspx

My computer is Debian 5.0 Squeeze.
1. install dependency libraries:

$ sudo apt-get install libedit2 libedit-dev freeglut3-dev libglu1-mesa-dev libgmp3-dev

2. install Ghc6:

$ sudo apt-get install ghc6 ghc6-prof ghc6-doc
or
$ wget
$  tar jxvf ghc-6.12.1-i386-unknown-linux-n.tar.bz2
$ cd ghc-6.12.1
$ ./configure
$ sudo make install

3. install Haskell-platform:

$ sudo apt-get install haskell-platform
or
$ wget -c  
and  ./configure , make,   make install

4. update libraries:

$ cabal install cabal-install
$ cabal update

5. Hello World :

$ mht@mahaitao:~/programming/haskell$ ghciGHCi, version 6.12.1:  :? for helpLoading package ghc-prim ... linking ... done.Loading package integer-gmp ... linking ... done.Loading package base ... linking ... done.Prelude> print "hello world""hello world"Prelude>

6. compile  a program:

$ cat hello.hs
module Main where

main = do
    print "Hello World"
$ ghc hello.hs -o hello
$ ./hello
Hello World

That's all!