This is a customized build of harfbuzz for Windows, meant to be used for building libass v0.10.0 for XBMC
You need Freetype to get this built. Easiest way is to download the binaries for XBMC here: http://mirrors.xbmc.org/build-deps/win32/freetype-2.4.6-win32-2.7z
Extract the content of the archive into the deps folder (you may need to create it).