I need to install ImageMagick 6.5.8 (or earlier might do), but even when I checkout an earlier commit, it installs the latest version (6.6.9-4). I did this:
$ git checkout -b im-6.5.6 ff414bb
(then confirmed that the working tree shows the correct version of imagemagick.rb, with @url = a .tar of version 6.5.6-5)
$ brew install imagemagick
(and it says Checking out tag 6.6.9-4 and then proceeds to install that version)
Any help would be appreciated. Thx.