Homebrew/homebrew-science — pull request #171 by thegedge (2013-05-01 02:35:16+00:00)
Title: Switch to an option to disable OpenCL in OpenCV.

OpenCV 2.4.5 enables OpenCL by default (on most platforms), so switch to
having an option to disable the OpenCL module.

Without this patch I was unable to upgrade to 2.4.5.