Unfortunately on my MAC I am unable to get the gem "rmagick" to install. I've tried pretty much a all the options.
I had gotten it to install when I used "imagemagick 6.3.9.7".
Therefore, I want to know is there a way to install a particular version of the software using brew ?
Something like
brew install imagemagick -v 6.3.9.7
Search for available versions with:
brew search imagemagick
To install a specific version use this forumla: brew install package@<version>, in your case it's:
brew install imagemagick@6.3.9.7
来源：https://stackoverflow.com/questions/41800136/homebrew-install-package-with-a-particular-version