The Makefile change simply gets us the same setup with make install-macosx
that we are getting from the gtk-mac-bundler - with the launcher script
and subsurface installed as subsurface-bin.
The changes in the README are what make the difference for getting a
working dmg - there are a bunch of .so files that are part of gtk that
didn't have their dependency load paths updated - and those made the
application either crash or at least not display its own icon correctly.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>