The instructions on the page Compile xmr-stak for Linux show:
AMD APP SDK 3.0 (only needed to use AMD GPUs)
download and install the latest version from http://developer.amd.com/amd-accelerated-parallel-processing-app-sdk/
The link results in a 404 page and it seems that the AMD APP SDK 3.0 is no longer available on AMD website.
Did I miss something? What can I use as alternative?
Regards.