It should be an easy fix, he says after joyfully forgetting all the previous times an XSPEC change should have been easy... (@DougBurke)
Fortunately, it was in this case. I tested this tweak out with the 'relxill' v2.3 model and was able to get it to build on Conda CIAO 4.17b1 by omitting "XSModel" from the list of libraries expected by the script.
Fortunately, it was in this case. I tested this tweak out with the 'relxill' v2.3 model and was able to get it to build on Conda CIAO 4.17b1 by omitting "XSModel" from the list of libraries expected by the script.