gem install rmagick -v 2.13.1 error Failed to build gem native extension on Mac OS 10.9.1

Question

I have tried everything by giving path of MagickWand.h, I have command tools installed. Can anyone help me out ?

$ 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.

/Users/ghazanfarali/.rvm/rubies/ruby-1.8.7-p357/bin/ruby extconf.rb checking for Ruby version >= 1.8.5... yes checking for /usr/bin/gcc-4.2... 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... no checking for sys/types.h... no checking for wand/MagickWand.h... no

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 --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=/Users/ghazanfarali/.rvm/rubies/ruby-1.8.7-p357/bin/ruby

Gem files will remain installed in /Users/ghazanfarali/.rvm/gems/ruby-1.8.7-p357/gems/rmagick-2.13.1 for inspection. Results logged to /Users/ghazanfarali/.rvm/gems/ruby-1.8.7-p357/gems/rmagick-2.13.1/ext/RMagick/gem_make.out "

Answer 1

I strongly suggest using something like HomeBrew, if you are not already, to manage OSX packages. There are alternatives, including MacPorts.

RMagic is simply a ruby interface with ruby bindings for the underlying ImageMagic package.

I would make sure the latest imagemagick is installed:

brew install imagemagick

Or, if already installed:

brew upgrade imagemagick

Or, per this answer:

# install latest command line tools via xcode     
# make sure you have the latest homebrew with the latest packages 
brew update
# uninstall imagemagick and then reinstall to make use updated compiler
brew uninstall imagemagick
brew install imagemagick
# uninstall rmagick then reinstall to ensure native extensions are built against
# latest imagemagick
gem uninstall rmagick
gem install rmagick # or bundle

Additionally, you can run:

brew doctor

to identify any issues that may affect the building of these packages.

Update

---

Two approaches:

1. RMagick was recently updated to fix build issues related to the latest ImageMagick. Use version 2.13.2. Per the RMagick README: This release will fix the installation issues due to ruby 1.9.3 and ImageMagick 6.8+.

2. Probably the better approach. Replace rmagick with mini_magick as mini_magick is being actively developed and rmagick is not. Imagemagick is also in active development, so as it's API changes, RMagick's dated API will become more and more stale.