new_contents: ##############################################################################
  # Copyright (c) 2013-2017, Lawrence Livermore National Security, LLC.
  # Produced at the Lawrence Livermore National Laboratory.
  #
  # This file is part of Spack.
  # Created by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
  # LLNL-CODE-647188
  #
  # For details, see https://github.com/spack/spack
  # Please also see the NOTICE and LICENSE files for our notice and the LGPL.
  #
  # This program is free software; you can redistribute it and/or modify
  # it under the terms of the GNU Lesser General Public License (as
  # published by the Free Software Foundation) version 2.1, February 1999.
  #
  # This program is distributed in the hope that it will be useful, but
  # WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
  # conditions of the GNU Lesser General Public License for more details.
  #
  # You should have received a copy of the GNU Lesser General Public
  # License along with this program; if not, write to the Free Software
  # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  ##############################################################################
  from spack import *
  
  
  class Wgsim(Package):
      """Wgsim is a small tool for simulating sequence reads from a reference
      genome.
  
      It is able to simulate diploid genomes with SNPs and insertion/deletion
      (INDEL) polymorphisms, and simulate reads with uniform substitution
      sequencing errors. It does not generate INDEL sequencing errors, but this
      can be partly compensated by simulating INDEL polymorphisms."""
  
      homepage = "https://github.com/lh3/wgsim"
  
      version('2011.10.17', git='https://github.com/lh3/wgsim.git', commit='a12da3375ff3b51a5594d4b6fa35591173ecc229')
  
      depends_on('zlib')
  
      def install(self, spec, prefix):
          cc = Executable(spack_cc)
          cc('-g', '-O2', '-Wall', '-o', 'wgsim', 'wgsim.c', '-lz', '-lm')
  
          install_tree(self.stage.source_path, prefix.bin)
  
subject: Create new package. (#7674)