--disable-link-all-dependencies on macOS

[Ben Abbott]

I’ve been using —enable-link-all-dependencies to build on macOS. I don’t recall 
when this was needed, but with Octave 5.0 it breaks mkoctfile due to 
OCT_LINK_DEPS = "libinterp/liboctinterp.la liboctave/liboctave.la “ being 
defined for mkoctfile.

When I switch to --disable-link-all-dependencies, Octave still builds but now 
mkoctfile has OCT_LINK_DEPS = “”.

Carlo, this should fix the mkoctfile but on macOS correct?

Ben