Non-CUDA build failure

[bforsbe]

Originally reported by: Jon Diprose (Bitbucket: well-jon, GitHub: Unknown)

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I think this is similar to issue #3 except for a non-CUDA build. Firstly, src/ml_model.cpp won't build without CUDA - see the attached rescomp-make.log and relion-2.0b-ml_model-no-cuda.patch that makes the problem go away by hiding the cuda_skunks.cuh-requiring code in #ifdef CUDA blocks.
However, it then fails to link because it fails to find -lrelion_gpu_util - see the attached rescomp-make-2.log. Suggested fix is relion-2.0b-CMakeLists-no-cuda.patch, which checks CUDA_FOUND to see if relion_gpu_util should be on the list of target_link_libraries.
After that it needs re-cmake-ing, so a complete rebuild - see rescomp-configure-3.log and rescomp-make-3.log - and builds for me! Hurrah.

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• Bitbucket: https://bitbucket.org/tcblab/relion2-beta/issue/12

[bforsbe]

Original comment by Bjoern Forsberg (Bitbucket: bforsbe, GitHub: bforsbe):

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Thanks for that detailed bug report! Indeed we have accidentally left gpu-code visible to the non-cuda compilation. This will be fixed! I'll resolve the issue when you suggested patch is included. Thanks again!

[bforsbe]

Original comment by Bjoern Forsberg (Bitbucket: bforsbe, GitHub: bforsbe):

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This should be fixed in v2.0.b3 (682c312).