I'm trying to get RMagick setup on Ubuntu 10.04. Looked here but had no joy. I even compiled and installed ImageMagick from source, but the instructions here still didn't help me when I try to install RMagick using RubyGems. I got this error:
carcher@carcher-laptop:~/Code/temp/RMagick-2.13.1$ sudo gem install rmagick
Building native extensions. This could take a while...
ERROR: Error installing rmagick:
ERROR: Failed to build gem native extension.
/usr/bin/ruby1.8 extconf.rb
extconf.rb:1:in `require': no such file to load -- mkmf (LoadError)
from extconf.rb:1
Gem files will remain installed in /usr/lib/ruby/gems/1.8/gems/rmagick-2.13.1 for inspection.
Results logged to /usr/lib/ruby/gems/1.8/gems/rmagick-2.13.1/ext/RMagick/gem_make.out
carcher@carcher-laptop:~/Code/temp/RMagick-2.13.1$
What does it all mean? :) I'm new to Ruby and RubyGems so please be gentle. My setup is as follows:
Ruby: 1.8.7
RubyGems: 1.3.7
I'm pretty much out of ideas (and tired too!). I tired to compile RMagick from source using the link above but it failed as there was no ./configure script :(
Any and all help appreciated!
Install the packages imagemagick and libmagickwand-dev (or libmagick9-dev). You should then be able to install the Rmagick Gem.
sudo apt-get install imagemagick libmagickwand-dev
If not, you are missing ruby related development packages like build-essential and ruby1.8-dev. If that's the case, a generic "ubuntu install ruby 1.8" query in google should sort you out.
You don't need a lot of the other junk in these answers, just:
sudo apt-get install libmagickwand-dev
On Ubuntu 12.04 libmagick9-dev is gone. graphicsmagick-libmagick-dev-compat should be used instead.
apt-get install graphicsmagick-libmagick-dev-compat
On Ubuntu 15.04, what solved it for me was to remove all previous *magick installations, reinstall required packages and then symlink the config file:
sudo apt-get purge graphicsmagick graphicsmagick-dbg imagemagick-common imagemagick imagemagick-6.q16 libmagickcore-6-headers libmagickwand-dev graphicsmagick-libmagick-dev-compat
sudo apt-get autoremove
sudo apt-get install imagemagick libmagickwand-dev
sudo ln -s /usr/lib/x86_64-linux-gnu/ImageMagick-6.8.9/bin-Q16/Magick-config /usr/bin/Magick-config
gem install rmagick
In Ubuntu 14.04
Below code is worked for me
sudo apt-get install imagemagick libmagickcore-dev libmagickwand-dev
Then,
gem install rmagick
On Ubuntu 12.0.4.2 sudo apt-get install libmagickwand-dev libmagickcore-dev libmagickcore4-extra libgraphviz-dev libgvc5 worked for me.
graphicsmagick-libmagick-dev-compat installed but didn't include the header files so rmagick wouldn't compile.
Please note, you need to remove graphicsmagick-libmagick-dev-compat before running the command above.
this worked for me...
sudo apt-get install graphicsmagick-libmagick-dev-compat libmagickwand-dev
gem install rmagick
...
Building native extensions. This could take a while...
Successfully installed rmagick-2.13.1
1 gem installed
(ubuntu 12.0.4 64bit)
You got message extconf.rb:1:in 'require': no such file to load -- mkmf (LoadError) because package ruby1.8-dev isn't installed. Install it (sudo apt-get install ruby1.8-dev) and try again.
In Ubuntu 13.10
This code worked for me
sudo apt-get install graphicsmagick-libmagick-dev-compat libmagickwand-dev
gem install rmagick
To get bundle to stop failing on ubuntu 12.04.
apt-get install graphicsmagick-libmagick-dev-compat libmagickwand-dev
This is my gemfile
gem 'rmagick'
gem 'mini_magick'
On Ubuntu, you can run:
sudo apt-get install libmagickwand-dev
On Centos, you can run:
sudo yum install gcc ImageMagick-devel make which
Then install
gem install rmagick
If you want to try installing the native deb package instead of the gem, be aware that the librmagick-ruby was broken on Ubuntu 10.04 until just very recently:
https://bugs.launchpad.net/ubuntu/+source/librmagick-ruby/+bug/518122
See comment #17 in particular. I believe this has already been fixed so now apt-get install librmagick-ruby might "just work". Otherwise here's how to build it yourself from source
$ cd /usr/src
$ sudo apt-get build-dep librmagick-ruby
$ sudo apt-get source librmagick-ruby
$ cd librmagick-ruby-2.11.1
$ sudo dch -i
(add changelog entry)
$ sudo dpkg-buildpackage
$ cd ..
$ sudo dpkg -i librmagick-ruby*.deb
In ubuntu 16.04.3:
This i worked:
sudo apt install imagemagick imagemagick-6.q16
It means this installed imagemagick then you can run RMagick.
If you are using Linux then simply run these commands.
sudo apt-get install imagemagick libmagickwand-dev
and then
bundle install
Hope this will resolve your issue.
And if you are using mac then simply run following commands
First of all unlink your installed imagemagick which was not properly installed in latest mac high sierra by using.
brew unlink imagemagick
then install latest imagemagic6 using below command
brew install imagemagick@6 && brew link imagemagick@6 --force
Then install gem rmagick using below command
gem install rmagick
bundle install
It will work perfectly fine.
Follow below 3 steps proven on UBUNTU 16.04
sudo apt-get install build-essential imagemagick libmagickwand-dev
#In .bashrc or .bash_profile add below code. Just check the ImageMagick dir name.
export PATH="/usr/lib/x86_64-linux-gnu/ImageMagick-6.8.9/bin-Q16:$PATH"
gem install rmagic #Install Gem
来源：https://stackoverflow.com/questions/3704919/installing-rmagick-on-ubuntu