old_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 Mpc(AutotoolsPackage):
      """Gnu Mpc is a C library for the arithmetic of complex numbers
         with arbitrarily high precision and correct rounding of the
         result."""
      homepage = "http://www.multiprecision.org"
      url      = "https://ftp.gnu.org/gnu/mpc/mpc-1.0.2.tar.gz"
  
      version('1.0.3', 'd6a1d5f8ddea3abd2cc3e98f58352d26')
      version('1.0.2', '68fadff3358fb3e7976c7a398a0af4c3')
  
      depends_on('gmp@4.3.2:')   # mpir is a drop-in replacement for this
      depends_on('mpfr@2.4.2:')  # Could also be built against mpir
  
      def url_for_version(self, version):
          if version < Version("1.0.1"):
              return "http://www.multiprecision.org/mpc/download/mpc-%s.tar.gz" % version
          else:
              return "https://ftp.gnu.org/gnu/mpc/mpc-%s.tar.gz" % version
  
      def configure_args(self):
          spec = self.spec
          return [
              '--with-mpfr={0}'.format(spec['mpfr'].prefix),
              '--with-gmp={0}'.format(spec['gmp'].prefix)
          ]
  
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 Mpc(AutotoolsPackage):
      """Gnu Mpc is a C library for the arithmetic of complex numbers
         with arbitrarily high precision and correct rounding of the
         result."""
  
      homepage = "http://www.multiprecision.org"
      url      = "https://ftp.gnu.org/gnu/mpc/mpc-1.1.0.tar.gz"
      list_url = "http://www.multiprecision.org/mpc/download.html"
  
      version('1.1.0', '4125404e41e482ec68282a2e687f6c73')
      version('1.0.3', 'd6a1d5f8ddea3abd2cc3e98f58352d26')
      version('1.0.2', '68fadff3358fb3e7976c7a398a0af4c3')
  
      # Could also be built against mpir instead
      depends_on('gmp@4.3.2:')
      depends_on('gmp@5.0.0:', when='@1.1.0:')
      depends_on('mpfr@2.4.2:')
      depends_on('mpfr@3.0.0:', when='@1.1.0:')
  
      def url_for_version(self, version):
          if version < Version("1.0.1"):
              url = "http://www.multiprecision.org/mpc/download/mpc-{0}.tar.gz"
          else:
              url = "https://ftp.gnu.org/gnu/mpc/mpc-{0}.tar.gz"
  
          return url.format(version)
  
      def configure_args(self):
          spec = self.spec
          return [
              '--with-mpfr={0}'.format(spec['mpfr'].prefix),
              '--with-gmp={0}'.format(spec['gmp'].prefix)
          ]
  
subject: Add latest version of MPC (#7546)