old_contents: # Copyright 2013-2019 Lawrence Livermore National Security, LLC and other
  # Spack Project Developers. See the top-level COPYRIGHT file for details.
  #
  # SPDX-License-Identifier: (Apache-2.0 OR MIT)
  
  from spack import *
  import sys
  
  
  class Pixman(AutotoolsPackage):
      """The Pixman package contains a library that provides low-level
      pixel manipulation features such as image compositing and
      trapezoid rasterization."""
  
      homepage = "http://www.pixman.org"
      url      = "http://cairographics.org/releases/pixman-0.32.6.tar.gz"
  
      version('0.38.0', sha256='a7592bef0156d7c27545487a52245669b00cf7e70054505381cff2136d890ca8')
      version('0.34.0', sha256='21b6b249b51c6800dc9553b65106e1e37d0e25df942c90531d4c3997aa20a88e')
      version('0.32.6', sha256='3dfed13b8060eadabf0a4945c7045b7793cc7e3e910e748a8bb0f0dc3e794904')
  
      depends_on('pkgconfig', type='build')
      depends_on('libpng')
  
      # As discussed here:
      # https://bugs.freedesktop.org/show_bug.cgi?id=104886
      # __builtin_shuffle was removed in clang 5.0.
      # From version 9.1 apple-clang is based on clang 5.0.
      # Patch is obtained from above link.
      patch('clang.patch', when='%clang@9.1.0-apple:')
  
      @run_before('build')
      def patch_config_h_for_intel(self):
          config_h = join_path(self.stage.source_path, 'config.h')
  
          # Intel disguises itself as GNU, but doesn't implement
          # the same builtin functions. This causes in this case
          # a positive detection of GCC vector extensions, which
          # is bound to fail at compile time because Intel has no
          # __builtin_shuffle. See also:
          #
          # https://software.intel.com/en-us/forums/intel-c-compiler/topic/758013
          #
          if '%intel' in self.spec:
              filter_file(
                  r'#define HAVE_GCC_VECTOR_EXTENSIONS /\*\*/',
                  '/* #undef HAVE_GCC_VECTOR_EXTENSIONS */',
                  config_h
              )
  
      def configure_args(self):
          args = [
              '--enable-libpng',
              '--disable-gtk',
          ]
  
          if sys.platform == 'darwin':
              args.append('--disable-mmx')
  
          return args
  
new_contents: # Copyright 2013-2019 Lawrence Livermore National Security, LLC and other
  # Spack Project Developers. See the top-level COPYRIGHT file for details.
  #
  # SPDX-License-Identifier: (Apache-2.0 OR MIT)
  
  from spack import *
  import sys
  
  
  class Pixman(AutotoolsPackage):
      """The Pixman package contains a library that provides low-level
      pixel manipulation features such as image compositing and
      trapezoid rasterization."""
  
      homepage = "http://www.pixman.org"
      url      = "http://cairographics.org/releases/pixman-0.32.6.tar.gz"
  
      version('0.38.0', sha256='a7592bef0156d7c27545487a52245669b00cf7e70054505381cff2136d890ca8')
      version('0.34.0', sha256='21b6b249b51c6800dc9553b65106e1e37d0e25df942c90531d4c3997aa20a88e')
      version('0.32.6', sha256='3dfed13b8060eadabf0a4945c7045b7793cc7e3e910e748a8bb0f0dc3e794904')
  
      depends_on('pkgconfig', type='build')
      depends_on('libpng')
  
      # As discussed here:
      # https://bugs.freedesktop.org/show_bug.cgi?id=104886
      # __builtin_shuffle was removed in clang 5.0.
      # From version 9.1 apple-clang is based on clang 5.0.
      # Patch is obtained from above link.
      patch('clang.patch', when='@0.34%clang@9.1.0-apple:')
  
      @run_before('build')
      def patch_config_h_for_intel(self):
          config_h = join_path(self.stage.source_path, 'config.h')
  
          # Intel disguises itself as GNU, but doesn't implement
          # the same builtin functions. This causes in this case
          # a positive detection of GCC vector extensions, which
          # is bound to fail at compile time because Intel has no
          # __builtin_shuffle. See also:
          #
          # https://software.intel.com/en-us/forums/intel-c-compiler/topic/758013
          #
          if '%intel' in self.spec:
              filter_file(
                  r'#define HAVE_GCC_VECTOR_EXTENSIONS /\*\*/',
                  '/* #undef HAVE_GCC_VECTOR_EXTENSIONS */',
                  config_h
              )
  
      def configure_args(self):
          args = [
              '--enable-libpng',
              '--disable-gtk',
          ]
  
          if sys.platform == 'darwin':
              args.append('--disable-mmx')
  
          return args
  
subject: fix patch (#11173)