This is a bit of a design decision issue.
For about 3 years or so now I've been using this hack (in an even more hacky way) to avoid recompiling every OSX library. This installs them using brew and symlinks.
The only exception is gloox as brew's requires openSSL and I tried brew-compiling without, it didn't work. So keep using the old way.
We may want to have both scripts in parallel, possibly?