old_contents: ##############################################################################
  # Copyright (c) 2013-2016, 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/llnl/spack
  # Please also see the LICENSE file 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 Xproto(AutotoolsPackage):
      """X Window System Core Protocol.
  
      This package provides the headers and specification documents defining
      the X Window System Core Protocol, Version 11.
  
      It also includes a number of headers that aren't purely protocol related,
      but are depended upon by many other X Window System packages to provide
      common definitions and porting layer."""
  
      homepage = "http://cgit.freedesktop.org/xorg/proto/x11proto"
      url      = "https://www.x.org/archive/individual/proto/xproto-7.0.29.tar.gz"
  
      version('7.0.29', '16a78dd2c5ad73011105c96235f6a0af')
  
      depends_on('pkg-config@0.9.0:', type='build')
      depends_on('util-macros', type='build')
  
new_contents: ##############################################################################
  # Copyright (c) 2013-2016, 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/llnl/spack
  # Please also see the LICENSE file 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 Xproto(AutotoolsPackage):
      """X Window System Core Protocol.
  
      This package provides the headers and specification documents defining
      the X Window System Core Protocol, Version 11.
  
      It also includes a number of headers that aren't purely protocol related,
      but are depended upon by many other X Window System packages to provide
      common definitions and porting layer."""
  
      homepage = "http://cgit.freedesktop.org/xorg/proto/x11proto"
      url      = "https://www.x.org/archive/individual/proto/xproto-7.0.31.tar.gz"
  
      version('7.0.31', '04b925bf9e472c80f9212615cd684f1e')
      version('7.0.29', '16a78dd2c5ad73011105c96235f6a0af')
  
      depends_on('pkg-config@0.9.0:', type='build')
      depends_on('util-macros', type='build')
  
subject: Add latest version of xproto (#4010)