mxcl/homebrew — pull request #15583 by sjackman (2012-10-21 17:57:37+00:00)
Title: graphviz: Use freetype2 if X11 is installed

Is freetype2 a necessary dependency when using X11? The dependencies seem to indicate so:
```
depends_on :freetype if build.include? 'with-freetype' or MacOS::X11.installed?
depends_on :x11 if build.include? 'with-x' or MacOS::X11.installed?
```