Fix configure messages when pkg-config isn't available
Fix configure messages when pkg-config isn't available

Do something like
  checking for FOO... cannot check without pkg-config
  checking for BAR... yes
instead of
  checking for FOO... checking for BAR... yes



git-svn-id: 14be032f8f42541b1a281b51ae8ea69814daf20e@3400 4b44e086-7f34-40ce-a3bd-00e031736276

BlueBrain/hwloc,BlueBrain/hwloc,BlueBrain/hwloc,BlueBrain/hwloc