GraphicsMagick is a replacement for ImageMagick. Now www-apps/redmine depends only on media-gfx/imagemagick.
Sorry about the mass reassignment, but this undertaking really shouldn't burden bug-wranglers further.
redmine depends on rmagick, not ImageMagick. and rmagick2 has no support with GraphicsMagick. [1] [1] http://rmagick.rubyforge.org/ Which version of RMagick is right for me?