[ET Trac] [Einstein Toolkit] #952: OpenCL detection

[Einstein Toolkit]

#952: OpenCL detection
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 Reporter:  knarf                  |       Owner:                     
     Type:  defect                 |      Status:  new                
 Priority:  minor                  |   Milestone:  ET_2012_11         
Component:  EinsteinToolkit thorn  |     Version:  development version
 Keywords:                         |  
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 OpenCL (the externallibraries thorn) so far only contains some pretty
 hard-coded logic for Mac installations and also now breaks (aborts) if
 OpenCL is compiled, but OPENCL_DIR was not set. Before, this was not
 necessary if opencl was installed in a standard location like /usr.

 The attached new file (OpenCL.sh - a patch doesn't make sense because it's
 almost a new file) implements a mechanism similar to other external
 libraries, but keeps the hard-coded Mac paths since they don't seem to
 follow any standard convention and I don't have any way to test that.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/952>
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