[FieldTrip] Simbio Unusable on Mac OS

[Nakhnikian, Alexander]

Hello All,

I’m trying to build a FEM using the simbio option and I’ve run into the following sequence of error. I’m running Matlab 2019b and Mac OS 10.15.6. I cannot tell whether it is a problem with improper installation or Mac’s increasing insistence on micromanaging every aspect of their OS and locking out user/third party software control. If anyone has suggested installation fixes or terminal hacks please let me know. Error messages and attempted fixes are included below. 

Thanks,

Alexander


Error 1: 

Invalid MEX-file
'/Users/alexander/Documents/MATLAB/fieldtrip-20200911/external/simbio/calc_stiff_matrix_val.mexmaci64':
dlopen(/Users/alexander/Documents/MATLAB/fieldtrip-20200911/external/simbio/calc_stiff_matrix_val.mexmaci64, 6):
Library not loaded: /usr/local/lib/libgfortran.3.dylib
  Referenced from:
  /Users/alexander/Documents/MATLAB/fieldtrip-20200911/external/simbio/calc_stiff_matrix_val.mexmaci64
  Reason: image not found

FIX: copy the library from MNE python to /usr/local/lib

Error 2:

Invalid MEX-file
'/Users/alexander/Documents/MATLAB/fieldtrip-20200911/external/simbio/calc_stiff_matrix_val.mexmaci64':
dlopen(/Users/alexander/Documents/MATLAB/fieldtrip-20200911/external/simbio/calc_stiff_matrix_val.mexmaci64, 6):
Library not loaded: @rpath/libquadmath.0.dylib
  Referenced from: /usr/local/lib/libgfortran.3.dylib
  Reason: image not found

FIX: Repeat fix 1 for the missing library

Error 3:

Invalid MEX-file
'/Users/alexander/Documents/MATLAB/fieldtrip-20200911/external/simbio/calc_stiff_matrix_val.mexmaci64':
dlopen(/Users/alexander/Documents/MATLAB/fieldtrip-20200911/external/simbio/calc_stiff_matrix_val.mexmaci64, 6):
Symbol not found: ___addtf3
  Referenced from: /usr/local/lib/libquadmath.0.dylib
  Expected in: /usr/lib/libSystem.B.dylib
 in /usr/local/lib/libquadmath.0.dylib

I don’t know how to fix this. I’m wondering whether the problem is that the OS isn’t letting third party programs write to /usr/lib.