old_contents: from spack import *
  from spack.util.executable import Executable
  import os
  
  class Atlas(Package):
      """
      Automatically Tuned Linear Algebra Software, generic shared
      ATLAS is an approach for the automatic generation and optimization of
      numerical software. Currently ATLAS supplies optimized versions for the
      complete set of linear algebra kernels known as the Basic Linear Algebra
      Subroutines (BLAS), and a subset of the linear algebra routines in the
      LAPACK library.
      """
      homepage = "http://math-atlas.sourceforge.net/"
      url      = "http://downloads.sourceforge.net/project/math-atlas/Stable/3.10.2/atlas3.10.2.tar.bz2"
  
      version('3.10.2', 'a4e21f343dec8f22e7415e339f09f6da')
  
      def install(self, spec, prefix):
          with working_dir('ATLAS-Build', create=True):
              self.module.configure = Executable('../configure')
              configure("--prefix=%s" % prefix)
  
              make()
              make('check')
              make('ptcheck')
              make('time')
              make("install")
  
new_contents: from spack import *
  from spack.util.executable import Executable
  import os
  
  class Atlas(Package):
      """
      Automatically Tuned Linear Algebra Software, generic shared
      ATLAS is an approach for the automatic generation and optimization of
      numerical software. Currently ATLAS supplies optimized versions for the
      complete set of linear algebra kernels known as the Basic Linear Algebra
      Subroutines (BLAS), and a subset of the linear algebra routines in the
      LAPACK library.
      """
      homepage = "http://math-atlas.sourceforge.net/"
      url      = "http://downloads.sourceforge.net/project/math-atlas/Stable/3.10.2/atlas3.10.2.tar.bz2"
  
      version('3.10.2', 'a4e21f343dec8f22e7415e339f09f6da')
  
      def patch(self):
          # Disable thraed check.  LLNL's environment does not allow
          # disabling of CPU throttling in a way that ATLAS actually
          # understands.
          filter_file(r'^\s+if \(thrchk\) exit\(1\);', 'if (0) exit(1);',
                      'CONFIG/src/config.c')
          # TODO: investigate a better way to add the check back in
          # TODO: using, say, MSRs.  Or move this to a variant.
  
      def install(self, spec, prefix):
          with working_dir('ATLAS-Build', create=True):
              self.module.configure = Executable('../configure')
              configure('--prefix=%s' % prefix,
                        '-C', 'ic', 'cc',
                        '-C', 'if', 'f77',
                        "--dylibs")
  
              make()
              make('check')
              make('ptcheck')
              make('time')
              make("install")
  
subject: Add disablement of cpu throttle check.