Why am I having a problem installing rmagick

Question

On Ruby 1.8.7 and rails 2.3.5 I get:

gem install rmagick

ERROR:  Error installing rmagick:

ERROR: Failed to build gem native extension.


    /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb
    mkmf.rb can't find header files for ruby at       
    /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ruby.h


Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/rmagick-2.13.1 for inspection.

Results logged to /Library/Ruby/Gems/1.8/gems/rmagick-2.13.1/ext/RMagick/gem_make.out

Building native extensions.  This could take a while...

Cynicalgrinch:levelous pawel$ gem install rmagick

Building native extensions.  This could take a while...

ERROR:  Error installing rmagick:

    ERROR: Failed to build gem native extension.


        /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb

mkmf.rb can't find header files for ruby at /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ruby.h


Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/rmagick-2.13.1 for inspection.

Results logged to /Library/Ruby/Gems/1.8/gems/rmagick-2.13.1/ext/RMagick/gem_make.out


Gem_make.out says this:

/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb
mkmf.rb can't find header files for ruby at /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ruby.h

Possible duplicate of http://stackoverflow.com/questions/4290759/error-installing-rmagick-on-mac-os-x — Michael Kohl, Mar 24 '11 at 07:56

Tombart · Answer 1 · 2012-11-02T08:26:36.953

28

on Ubuntu/Debian you would need to install:

sudo apt-get install libmagickwand-dev

on RedHat/Fedora/CentOS:

yum install ImageMagick-devel

edited Nov 02 '12 at 08:26

answered Oct 17 '11 at 11:12

Tombart

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on windows you should have a look at gem `rmagick-win32` see http://rmagick.rubyforge.org/install-faq.html#win for more info – Tombart Oct 08 '12 at 10:35

score 12 · Accepted Answer · edited Oct 25 '12 at 14:37

To install rmagick with the gem system, you must have "imagemagick" on your system. The following error line says that rmagick failed to build because the native extension (imagemagick) does not exist on your system.

ERROR: Failed to build gem native extension.

On OSX, you can use brew (the best way in my opinion) to install imagemagick. Once brew is installed :

brew install imagemagick
gem install rmagick

On Mountain Lion (OSX), after:

brew install imagemagick

it may be necessary to force the re-creation of some symlinks manually before being able to install the rmagick gem.

> brew link -f jpeg
> brew link -f libpng
> brew link -f freetype
> brew link -f imagemagick

score 0 · Answer 3 · answered Apr 23 '18 at 23:25

0

On fedora make sure you have ImageMagick-devel installed.

answered Apr 23 '18 at 23:25

Qwertie

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Why am I having a problem installing rmagick

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