caskroom/homebrew-cask — pull request #7846 by rolandwalker (2014-12-06 16:33:13+00:00)
Title: Enable `depends_on :arch`

In #7811, I forgot that there have been forward-compatibility stubs for `depends_on :arch` for some time.

Therefore, enabling it has the same effect as a comment, and the functionality will kick in with the next release.