[HarfBuzz] Building from git on OS X with Homebrew

[Werner LEMBERG]

> brew install glib
>> brew install libtool
>> brew install freetype
>> # Get harfbuzz
>> git clone https://github.com/behdad/harfbuzz.git
>> cd harfbuzz
>> ./autogen.sh
>> make

After that you should recompile FreeType again since FreeType and
HarfBuzz are mutually dependent (assuming that homebrew is up to date
and doesn't use FreeType's --without-harfbuzz configuration option).


    Werner