解决 gem install rmagick error

解决 gem install rmagick error  .
Java代码 
1.gem install rmagick -v '2.13.1' 
2.Building native extensions.  This could take a while...  
3.ERROR:  Error installing rmagick:  
4.    ERROR: Failed to build gem native extension.  
5. 
6.        /home/jiahe/.rvm/rubies/ree-1.8.7-2011.03/bin/ruby extconf.rb  
7.checking for Ruby version >= 1.8.5... yes  
8.checking for gcc... yes  
9.checking for Magick-config... no  
10.Can't install RMagick 2.13.1. Can't find Magick-config in /home/jiahe/.rvm/gems/ree-1.8.7-2011.03/bin:/home/jiahe/.rvm/gems/ree-1.8.7-2011.03@global/bin:/home/jiahe/.rvm/rubies/ree-1.8.7-2011.03/bin:/home/jiahe/.rvm/gems/ree-1.8.7-2011.03/bin:/home/jiahe/.rvm/gems/ree-1.8.7-2011.03@global/bin:/home/jiahe/.rvm/rubies/ree-1.8.7-2011.03/bin:/home/jiahe/.rvm/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games  
11. 
12.*** extconf.rb failed ***  
13.Could not create Makefile due to some reason, probably lack of  
14.necessary libraries and/or headers.  Check the mkmf.log file for more  
15.details.  You may need configuration options.  
16. 
17.Provided configuration options:  
18.    --with-opt-dir  
19.    --without-opt-dir  
20.    --with-opt-include  
21.    --without-opt-include=${opt-dir}/include  
22.    --with-opt-lib  
23.    --without-opt-lib=${opt-dir}/lib  
24.    --with-make-prog  
25.    --without-make-prog  
26.    --srcdir=.  
27.    --curdir  
28.    --ruby=/home/jiahe/.rvm/rubies/ree-1.8.7-2011.03/bin/ruby 
gem install rmagick -v '2.13.1'
Building native extensions.  This could take a while...
ERROR:  Error installing rmagick:
ERROR: Failed to build gem native extension.

        /home/jiahe/.rvm/rubies/ree-1.8.7-2011.03/bin/ruby extconf.rb
checking for Ruby version >= 1.8.5... yes
checking for gcc... yes
checking for Magick-config... no
Can't install RMagick 2.13.1. Can't find Magick-config in /home/jiahe/.rvm/gems/ree-1.8.7-2011.03/bin:/home/jiahe/.rvm/gems/ree-1.8.7-2011.03@global/bin:/home/jiahe/.rvm/rubies/ree-1.8.7-2011.03/bin:/home/jiahe/.rvm/gems/ree-1.8.7-2011.03/bin:/home/jiahe/.rvm/gems/ree-1.8.7-2011.03@global/bin:/home/jiahe/.rvm/rubies/ree-1.8.7-2011.03/bin:/home/jiahe/.rvm/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games

*** 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
--without-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=/home/jiahe/.rvm/rubies/ree-1.8.7-2011.03/bin/ruby


Java代码 
1.sudo apt-get install imagemagick libmagickwand-dev