Install Haskell Platform packages using Nix package manager

shell.nix

# Install Haskell platform libraries from: 
#  
# - https://www.haskell.org/platform/contents.html
#
{ nixpkgs ? import <nixpkgs> {}, compiler ? "ghc801" }:
let
  inherit (nixpkgs) pkgs;
  ghc = pkgs.haskell.packages.${compiler}.ghcWithPackages (ps: with ps; [
          mtl random  network HTTP HUnit HGL parsec template-haskell transformers async attoparsec cgi exceptions  fixed GLURaw GLUT half hashable haskell-src html HTTP multipart network "network-uri" ObjectName old-locale old-time OpenGL OpenGLRaw parallel parsec primitive random regex-base regex-compat stm syb text xhtml zlib QuickCheck
        ]);
in
pkgs.stdenv.mkDerivation {
  name = "haskell-learn";
  buildInputs = [ ghc ];
  shellHook = "eval $(egrep ^export ${ghc}/bin/ghc)";
}