I'm not sure how difficult it is on macos but you should just be able to build the ngspice library with debugging symbols enabled. ngspice uses autotools for configuration so adding --enable-debug=yes to the build configuration should do the trick. I'm not sure how you would install this on macos.
I'm not sure how difficult it is on macos but you should just be able to build the ngspice library with debugging symbols enabled. ngspice uses autotools for configuration so adding --enable-debug=yes to the build configuration should do the trick. I'm not sure how you would install this on macos.