Installation
Linux
Download and install GHC.
% su -
% cd /usr/local/src
% curl -LO "http://www.haskell.org/ghc/dist/7.6.3/ghc-7.6.3-x86_64-unknown-linux.tar.bz2"
% bzip2 -dc ghc-7.6.3-x86_64-unknown-linux.tar.bz2 | tar xvf -
% cd ghc-7.6.3-x86_64-unknown-linux
# Install at /usr/local/ghc/ghc-7.6.3
% ./configure --prefix=/usr/local/ghc/ghc-7.6.3
% make install
...
% export PATH=/usr/local/ghc/ghc-7.6.3/bin:$PATH
% which ghc
% /usr/local/ghc/ghc-7.6.3/bin/ghc
The official page recommends installing Haskell Platform. But we prefer to install Cabal directly from its hackage page.
% curl -LO "http://hackage.haskell.org/packages/archive/cabal-install/1.16.0.2/cabal-install-1.16.0.2.tar.gz"
% tar xvfz cabal-install-1.16.0.2.tar.gz
% cd cabal-install-0.16.0.2
% sh ./bootstrap.sh
...
% cabal update
% export PATH=$HOME/.cabal/bin:$PATH
% which cabal
% ~/.cabal/bin/cabal
% cabal --version
cabal-install version 1.16.0.2
using version 1.16.0 of the Cabal library
See http://hackage.haskell.org/trac/hackage/wiki/CabalInstall more details.
Use cabal-dev in favor of cabal. It supports sandboxed cabal-install repositories.
% cabal install cabal-dev
% which cabal-dev
% ~/.cabal/bin/cabal-dev
Just use caba-dev command instead of cabal. By default, it creates a ./cabal-dev directory as the sandbox.
% cd /path/to/project
% cabal-dev install doctest
% ls cabal-dev
bin/ lib/ logs/ packages-7.6.3.conf/ packages/ share/ cabal.config
% cabal-dev/bin/doctest --help
...
Also specify a sandbox directory by using --sandbox option.
% cabal-dev install --sandbox=~/.cabal-dev/yesod