Rails 101 : ubuntu 12.04 ImageMagick 所需套件

 sudo apt-get install libperl-dev gcc libjpeg62-dev libbz2-dev libtiff4-dev libwmf-dev libz-dev \
 libpng12-dev libx11-dev libxt-dev libxext-dev libxml2-dev libfreetype6-dev liblcms1-dev \
 libexif-dev perl libjasper-dev libltdl3-dev graphviz gs-gpl pkg-config

※Ubuntu 12.04 : gs-gpl套件己被移除