Matt
I have tried to reproduce your environment on my Mac sierra 10.12.6, but, even though my link command seems to the same as yours, I am not seeing any segfault.
Did you recompile from scratch after applying the patch (e.g. make realclean)?
Could you send the output of the command
otool -L $NWCHEM_TOP/bin/MACX64/nwchem