https://bugs.freedesktop.org/show_bug.cgi?id=68857
--- Comment #2 from Nat Tuck nat@ferrus.net --- This should build and run the EP benchmark:
make veryclean make ep CLASS=A cd bin ./run_ocl_gpu.sh ep A
If that doesn't work, you might have to edit config/make.def first to make it link to -lOpenCL.