我已经干净地安装了Mac OSXLion,并且已经安装了开发人员工具。我正在尝试安装一些ruby gem,但是那些需要本地扩展的并没有构建。sudo gem install rmagickBuilding native extensions. This could take a while...ERROR: Error installing rmagick:
ERROR: Failed to build gem native extension.for ru
/gems/rmagick-2.13.2/lib/RMagick2.bundle - /Users/asciiman/.rvm/gems/ruby-1.9.3-p448/gems/rmagick-2.13.2/lib/RMagick2.bundle
from /Users/asciiman/.rvm/gems/ruby-1.9.3-p44