Running the stack on HSC data for a DESC PSF project

What is the easiest/cleanest way to update GalSim to deal with this problem?

I tried to follow the instructions in here but, even if the correct version appeared when I did eups list -s, when I tried to do import galsim it didn’t work. I also tried doing eups distrib install with the latest weekly release but, when I tried to use it in combination with other packages (that worked fine with v12_0) I had a strange memory allocation problem when using galsim inside an ipython notebook.