require 'formula'

class Mpich2 < Formula
  homepage 'http://www.mcs.anl.gov/research/projects/mpich2/index.php'
  url 'http://www.mcs.anl.gov/research/projects/mpich2/downloads/tarballs/1.4.1p1/mpich2-1.4.1p1.tar.gz'
  version '1.4.1p1'
  md5 'b470666749bcb4a0449a072a18e2c204'

  def install
    system "./configure", "--prefix=#{prefix}",
                          "--mandir=#{man}",
                          "--disable-f77",
                          "--disable-fc",
                          "--with-device=ch3:nemesis",
                          "--enable-shared"
    system "make"
    system "make install"
  end

  def caveats; <<-EOS.undent
    Please be aware that installing this formula along with the OpenMPI
    formula will cause neither MPI installation to work correctly as
    both packages install their own versions of mpicc/mpicxx and mpirun.
    EOS
  end
end