old_contents: from spack import *
  
  class Dbus(Package):
      """D-Bus is a message bus system, a simple way for applications to
         talk to one another. D-Bus supplies both a system daemon (for
         events such new hardware device printer queue ) and a
         per-user-login-session daemon (for general IPC needs among user
         applications). Also, the message bus is built on top of a
         general one-to-one message passing framework, which can be used
         by any two applications to communicate directly (without going
         through the message bus daemon)."""
  
      homepage = "http://dbus.freedesktop.org/"
      url      = "http://dbus.freedesktop.org/releases/dbus/dbus-1.8.8.tar.gz"
  
      version('1.9.0', 'ec6895a4d5c0637b01f0d0e7689e2b36')
      version('1.8.8', 'b9f4a18ee3faa1e07c04aa1d83239c43')
      version('1.8.6', '6a08ba555d340e9dfe2d623b83c0eea8')
      version('1.8.4', '4717cb8ab5b80978fcadf2b4f2f72e1b')
      version('1.8.2', 'd6f709bbec0a022a1847c7caec9d6068')
  
      def install(self, spec, prefix):
          configure("--prefix=%s" % prefix)
          make()
          make("install")
  
new_contents: from spack import *
  
  class Dbus(Package):
      """D-Bus is a message bus system, a simple way for applications to
         talk to one another. D-Bus supplies both a system daemon (for
         events such new hardware device printer queue ) and a
         per-user-login-session daemon (for general IPC needs among user
         applications). Also, the message bus is built on top of a
         general one-to-one message passing framework, which can be used
         by any two applications to communicate directly (without going
         through the message bus daemon)."""
  
      homepage = "http://dbus.freedesktop.org/"
      url      = "http://dbus.freedesktop.org/releases/dbus/dbus-1.8.8.tar.gz"
  
      version('1.9.0', 'ec6895a4d5c0637b01f0d0e7689e2b36')
      version('1.8.8', 'b9f4a18ee3faa1e07c04aa1d83239c43')
      version('1.8.6', '6a08ba555d340e9dfe2d623b83c0eea8')
      version('1.8.4', '4717cb8ab5b80978fcadf2b4f2f72e1b')
      version('1.8.2', 'd6f709bbec0a022a1847c7caec9d6068')
  
      def install(self, spec, prefix):
          configure("--prefix=%s" % prefix)
          make()
          make("install")
  
          # dbus needs a machine id generated after install
          dbus_uuidgen = Executable(join_path(prefix.bin, 'dbus-uuidgen'))
          dbus_uuidgen('--ensure')
  
subject: Make dbus put a machine id file in the right place.