Paul, I am not sure understand the concern. If you look at the field name of IppLibraryVersion structure, you may notice it means the name of the current library version. Example: Name = "ippip8". where p8 == supported CPU specific. Namely in this case - Optimized for processors with Intel SSE4.1. You may find out more details into User's guide.
I will elaborate. Documentation of GetLibVersion https://software.intel.com/en-us/node/502009 is missing a description of targetCpu field. IppLibraryVersion structure has 8 fields, but only 7 of them are described on that page. IppLibraryVersion->targetCpu is not described. Its value is "core" for my CPU, but I would like to know what are the other possible values.