Git hash c1b1ec0 "hwloc: add workarounds to get hwloc version for pre 2.1 hwloc" of ExternalLibraries-hwloc introduced code into hwloc’s detect.sh that uses hwloc-info to find out the library version. This code causes detect.sh to fail if hwloc-info is not present.

This pull request

https://github.com/EinsteinToolkit/ExternalLibraries-hwloc/pull/new/rhaas/hwloc-location

adds checks about whether hwloc-info exists before using it.

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2334/hwlocs-detectsh-fails-if-hwloc-info-is-not