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Rails 3.2 + OSX: cannot install rmagick gem

I am trying to install a RoR application from Github and while bundle install running, I get this error:

 Installing rmagick (2.13.1) with native extensions Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension. /Users/adam/.rvm/rubies/ruby-1.9.3-p327/bin/ruby extconf.rb checking for Ruby version >= 1.8.5... yes extconf.rb:128: Use RbConfig instead of obsolete and deprecated Config. checking for clang... yes checking for Magick-config... yes checking for ImageMagick version >= 6.4.9... yes checking for HDRI disabled version of ImageMagick... yes checking for stdint.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/adam/.rvm/rubies/ruby-1.9.3-p327/bin/ruby /Users/adam/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/mkmf.rb:381:in `try_do': The compiler failed to generate an executable file. (RuntimeError) You have to install development tools first. from /Users/adam/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/mkmf.rb:506:in `try_cpp' from /Users/adam/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/mkmf.rb:931:in `block in have_header' from /Users/adam/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/mkmf.rb:790:in `block in checking_for' from /Users/adam/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/mkmf.rb:284:in `block (2 levels) in postpone' from /Users/adam/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/mkmf.rb:254:in `open' from /Users/adam/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/mkmf.rb:284:in `block in postpone' from /Users/adam/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/mkmf.rb:254:in `open' from /Users/adam/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/mkmf.rb:280:in `postpone' from /Users/adam/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/mkmf.rb:789:in `checking_for' from /Users/adam/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/mkmf.rb:930:in `have_header' from extconf.rb:193:in `<main>' Gem files will remain installed in /Users/adam/.rvm/gems/ruby-1.9.3-p327/gems/rmagick-2.13.1 for inspection. Results logged to /Users/adam/.rvm/gems/ruby-1.9.3-p327/gems/rmagick-2.13.1/ext/RMagick/gem_make.out An error occurred while installing rmagick (2.13.1), and Bundler cannot continue. Make sure that `gem install rmagick -v '2.13.1'` succeeds before bundling.

I tried to run gem install rmagick -v '2.13.1' , but got the same error.

I am running on Mac OS X Lion. What am I missing?

Thanks in advance.

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3 answers

Try to run:

 brew link imagemagick
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Make sure you have a compiler. Xcode, or just install gcc.

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I could not install rmagick gem ...

To install Imagemagick correctly, I first

 brew remove libtool brew install libtool --universal

Then I was able to install Imagemagick with this command:

 brew install imagemagick --build-from-source

Then the correct gmagick installation is installed correctly

The error message that I received when rmagick did not install looked like this:

 linking shared-object RMagick2.bundle ld: file not found: /usr/local/lib/libltdl.7.dylib for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation) make: *** [RMagick2.bundle] Error 1 make failed, exit code 2

This was for Imagemagick 6.8.9-8 and rmagick 2.13.2

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