Hwloc 2: add a runtime check to make sure we're running against correct API
Hwloc 2: add a runtime check to make sure we're running against correct API

pocl/pocl,pocl/pocl,pocl/pocl,Oblomov/pocl,franz/pocl,franz/pocl,Oblomov/pocl,Oblomov/pocl,franz/pocl,franz/pocl,Oblomov/pocl,pocl/pocl,franz/pocl,Oblomov/pocl,pocl/pocl