buildroot

config BR2_PACKAGE_HWLOC

    bool "hwloc"

    depends on BR2_TOOLCHAIN_HAS_THREADS

    help

      Portable Hardware Locality

​

      Provides a portable abstraction (across OS, versions,

      architectures, ...)  of the hierarchical topology of modern

      architectures, including NUMA memory nodes, sockets, shared

      caches, cores and simultaneous multithreading.

​

      http://www.open-mpi.org/projects/hwloc/

​

comment "hwloc needs a toolchain w/ threads"

    depends on !BR2_TOOLCHAIN_HAS_THREADS