ruby – 安装RMagick宝石 – 找不到MagickWand.h

Can't install RMagick 2.13.1. Can't find MagickWand.h.
*** extconf.rb failed ***
Could not create Makefile due to some reason,probably lack of
necessary libraries and/or headers.  Check the mkmf.log file for more
details.  You may need configuration options.

Provided configuration options:
    --with-opt-dir
    --with-opt-include
    --without-opt-include=${opt-dir}/include
    --with-opt-lib
    --without-opt-lib=${opt-dir}/lib
    --with-make-prog
    --without-make-prog
    --srcdir=.
    --curdir
    --ruby=/Users/disaacs/.rvm/rubies/ruby-1.9.3-p125/bin/ruby


Gem files will remain installed in /Users/disaacs/.rvm/gems/ruby-1.9.3-p125/gems/rmagick-2.13.1 for inspection.
Results logged to /Users/disaacs/.rvm/gems/ruby-1.9.3-p125/gems/rmagick-2.13.1/ext/RMagick/gem_make.out

看看mkmf.log文件我看到

have_header: checking for wand/MagickWand.h... -------------------- no

"/usr/bin/gcc-4.2 -E -I/Users/disaacs/.rvm/rubies/ruby-1.9.3-p125/include/ruby-1.9.1/x86_64-darwin10.8.0 -I/Users/disaacs/.rvm/rubies/ruby-1.9.3-p125/include/ruby-1.9.1/ruby/backward -I/Users/disaacs/.rvm/rubies/ruby-1.9.3-p125/include/ruby-1.9.1 -I.      conftest.c -o conftest.i"
conftest.c:3:29: error: wand/MagickWand.h: No such file or directory

这是真的.在gcc-4.2命令的-I指令特定的任何目录中找不到文件MagickWand.h.为什么不？我该怎么解决这个问题？

ImageMagick已安装,使用自制软件.如果我搜索我的驱动器,我发现MagicWand.h安装在/usr/local/Cellar/imagemagick/6.7.7-6/include/ImageMagick/wand/MagickWand.h中.

我已经尝试了所有的建议在Can’t install RMagick 2.13.1. Can’t find MagickWand.h.,但没有一个工作.

编辑：
另外要注意的是：我原来是使用MacPorts安装了ImagMagick 6.7.0-7,而且安装的RMagick很好.除了它不适用于CarrierWave宝石.所以我卸载了MacPorts并卸载了RMagick.然后使用brew install -f imagemagick –disable-openmp重新安装ImageMagick,并尝试重新安装rmagick gem(这使我感到目前的问题).我在每个步骤重新启动所有终端,以确保我的路径被刷新.