I just installed Imagemagick on the Mac as a prerequisite for installing the Rmagick gem for image processing with CarrierWave.
After performing the necessaries to get CarrierWave using Rmagick, the server crashed, then crashed again when I tried a second time.
Here’s the solution:
brew install imagemagick --disable-openmp
If you’ve already got imagemagick installed, it will need to be uninstalled before reinstallation with that option. That can be done all in one step as follows:
brew uninstall imagemagick && brew install imagemagick --disable-openmp
The Rmagick gem also then needs to be rebuilt against the new Imagemagick installation:
gem pristine rmagick
Via stackoverflow here.