new_contents: from spack import *
  
  class Patchelf(Package):
      """PatchELF is a small utility to modify the dynamic linker and RPATH of ELF executables."""
  
      homepage = "https://nixos.org/patchelf.html"
      url      = "http://nixos.org/releases/patchelf/patchelf-0.8/patchelf-0.8.tar.gz"
      list_url = "http://nixos.org/releases/patchelf/"
      list_depth = 2
  
      version('0.8', '407b229e6a681ffb0e2cdd5915cb2d01')
  
      def install(self, spec, prefix):
          configure('--prefix=%s' % prefix)
          make()
          make("install")
  
subject: Add PatchELF package