How to install ImageMagick for use with RVM - ruby-on-rails-3

Question

I had a non-rvm app going and decided to move to RVM. Now I'm noticing paperclip failing as ImageMagick isn't available.
[paperclip] An error was received while processing: #<Paperclip::CommandNotFoundError: Could not run the `identify` command. Please install ImageMagick.>
What's the right way to get ImageMagick installed on RVM?

Answer 1

On OS X if you have brew installed, you can simply use the following command:
brew install imagemagick

Answer 2

ImageMagick isn't a gem, it's a normal packet. On debian, the package name is imagemagick. You can install it via apt-get install imagemagick as root.

Answer 3

None of the above worked (on Ubuntu 10.10 64 bit)
I had to
sudo apt-get install imagemagick
sudo apt-get install libmagickcore-dev libmagickwand-dev
then
gem install rmagick
(in Rails 3.1)

Answer 4

On ubuntu, but this might also work on MacOS. You def want to compile from source when using ruby. Here the script I use
*install_imagemagick.sh*
#!/bin/bash
mkdir -p ~/local
command -v identify > /dev/null
if [ $? -eq 1 ]; then
echo "${bldgrn}Installing imagemagick into ${txtwht}$HOME/local/imagemagick${txtrst}"
wget -N --retr-symlinks ftp://ftp.imagemagick.org/pub/ImageMagick/ImageMagick.tar.gz
tar -xzvf ImageMagick.tar.gz
cd ImageMagick-*
./configure --prefix=$HOME/local/imagemagick
make
make install
cd ..
rm -rf ImageMagick-*
fi
Then I add this to my ~/.bashrc or ~/.zshrc
export PATH=$HOME/local/imagemagick/bin:$PATH
export LD_LIBRARY_PATH=$HOME/local/imagemagick/lib:$LD_LIBRARY_PATH
Then you can install your ruby bindings if necessary:
gem install rmagick

Answer 5

For Cygwin, remember to use:
http://www.imagemagick.org/download/binaries/ImageMagick-i686-pc-cygwin.tar.gz
instead of:
http://cygwin.com/packages/ImageMagick/

Answer 6

If you are on Ubuntu, you can install the package using:
apt-get install imagemagick