I pushed a new 1.1.2 binary to the 110 branch.
https://github.com/Genoil/cpp-ethereum/tree/110/releasesAdded mixed CL/CUDA mining, so you can mine both GPU types on a single ethminer instance. It's not possible to set different local/global work per GPU type yet. Will add that if there's any demand. I added this mostly to be able to build and test the DAG generation serialisation, because I have only 1 970 and 1 7950

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To enable, replace -G or -U flag with -X.