Another fix from Paul: $GCC is too overly-broad (because some compilers lie about being gcc).  Instead, check $hwloc_c_vendor.  That will accurately be gnu (or not).
Another fix from Paul: $GCC is too overly-broad (because some
compilers lie about being gcc).  Instead, check $hwloc_c_vendor.  That
will accurately be gnu (or not).


git-svn-id: 14be032f8f42541b1a281b51ae8ea69814daf20e@4311 4b44e086-7f34-40ce-a3bd-00e031736276

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