https://github.com/raspberrypi/userland

This repository contains the source code for the ARM side libraries used on Raspberry Pi. These typically are installed in /opt/vc/lib and includes source for the ARM side code to interface to: EGL, mmal, GLESv2, vcos, openmaxil, vchiq_arm, bcm_host, WFC, OpenVG.

Use buildme to build. It requires cmake to be installed and an arm cross compiler. It is set up to use this one:

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