with some versions of autoconf (2.63 at least), AC checks seem to not work when put in a case statement
with some versions of autoconf (2.63 at least), AC checks seem to not work when put in a case statement

git-svn-id: 14be032f8f42541b1a281b51ae8ea69814daf20e@154 4b44e086-7f34-40ce-a3bd-00e031736276

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