@d-healey this is a remote MacOS build agent which is installing from the base OS for each run, so I can't set it via the UI.
I tried appending -D:USE_IPP=0 to the export_ci command line options, which allowed the compile to complete, but now the linker is failing with the following:
clang: error: no such file or directory: '/opt/intel/ipp/lib/libippi.a'
clang: error: no such file or directory: '/opt/intel/ipp/lib/libipps.a'
clang: error: no such file or directory: '/opt/intel/ipp/lib/libippvm.a'
clang: error: no such file or directory: '/opt/intel/ipp/lib/libippcore.a'