[Therion] MacOSX error and solution: ImageMagick after upgrading from Mt.Lion to Mavericks

To generate Thbook with all samples is necessary to convert pdf files from samples directory. But in Maverick or Yosemite there is error when installing ImageMagick by Brew: Why is ImageMagick trying to load JPG coder at /usr/local/Cellar/imagemagick/6.8.8-9/lib/ImageMagick//modules-Q16/coders/jpeg.la? Why the double slash after ImageMagick// ? I came across this issue too when upgrading from Mt.Lion to Mavericks. I found an issue in homebrew's github repo. The fix that worked for me was: $ brew uninstall imagemagick $ brew install imagemagick --build-from-source m.