# Setup The Roboto build toolchain depends on: - FontTools (https://github.com/behdad/fonttools) - RoboFab (https://github.com/robofab-developers/robofab) Overlap removal depends on the "booleanOperations" (https://github.com/typemytype/booleanOperations) library, which is included in `scripts/lib/`. You may need to replace its `pyclipper.so` with `pyclipper-MAC.so` or `pyclipper-LINUX.so`, depending on your platform, or compile the cpp wrapper yourself according to the instructions found on GitHub. ### OTF Generation OTF generation depends on: - ufo2fdk (https://github.com/typesupply/ufo2fdk) - Open-source portions of the AFDKO (https://github.com/adobe-type-tools/afdko/releases) The AFDKO from GitHub can be time consuming to setup. It is easier to just use the variety which includes closed-source tools (http://www.adobe.com/devnet/opentype/afdko.html), though these closed-source portions are not used to build Roboto. ### TTF Generation TTF generation depends on: - FontForge (https://github.com/fontforge/fontforge) Whose Python interface should be availabe on Ubuntu by default via `apt-get install fontforge` and `apt-get install python-fontforge`.