Tried to compile with the Makefile they have, but it fails saying icc, ifort not found -- meaning they want this to work only with their own compiler. Is this intended or am I missing something?
Given that it was just opensourced it's highly probably that it was developed only against Intel's own compiler. Those who want it to work with other compilers are now able to contribute code for that themselves, it's not Intel's responsibility to do that (though they certainly can if they wish).