I will have a look at the ngspice issues. I guess that the only files
that we really need in the distribution (besides the ngspice dylib) are
the codemodel *.cm files. They are also dylibs to be loaded dynamically
into ngspice. The commands to load these files (including path
information) is sent to ngspice by eeschema. So we might need some OS
specific path information in eeschema.
I will switch on my MAC labtop in the evening to check what we have now
(and what we might need in the future).