mpich2: 1.4 -> 3.2

{ stdenv, fetchurl, python, perl, gfortran }:

let version = "1.4"; in

stdenv.mkDerivation {

  name = "mpich2-${version}";

stdenv.mkDerivation  rec {

  name = "mpich-${version}";

  version = "3.2";

  src = fetchurl {

    url = "http://www.mcs.anl.gov/research/projects/mpich2/downloads/tarballs/${version}/mpich2-${version}.tar.gz";

    url = "http://www.mpich.org/static/downloads/3.2/mpich-3.2.tar.gz";

    sha256 = "0bvvk4n9g4rmrncrgs9jnkcfh142i65wli5qp1akn9kwab1q80z6";

  };

  configureFlags = "--enable-shared --enable-sharedlib";

  buildInputs = [ python perl gfortran ];

  propagatedBuildInputs = stdenv.lib.optional (stdenv ? glibc) stdenv.glibc;

  patchPhase =

    '' for i in $(find -type f -not -name Makefile.\*)

       do

         if grep -q /usr/bin/env "$i"

         then

             interpreter="$(cat $i | grep /usr/bin/env | sed -'es|^.*/usr/bin/env \([^ ]\+\).*$|\1|g')"

             echo "file \`$i' -> interpreter \`$interpreter'"

             path="$(type -P $interpreter)"

             echo "\`/usr/bin/env $interpreter' -> \`$path' in \`$i'..."

             sed -i "$i" -e "s|/usr/bin/env $interpreter|$path|g"

         fi

       done

       true

    '';

  buildInputs = [ perl gfortran ];

  meta = {

    description = "Implementation of the Message Passing Interface (MPI) standard";