HowTo install rmagick gem on Windows » History » Version 8

Version 7 (Dmitry Popov, 2015-03-03 13:07) → Version 8/10 (Dmitry Popov, 2015-03-03 13:15)

h1. HowTo install @rmagick@ gem on Windows


h2. Prerequisite

You need to have the "DevKit": installed.

h2. Installation of "ImageMagick":

You can try to download Download last setup package from, but and run it.

according to "RMagick wiki":, the last known version to work is ImageMagick legacy Legacy binary versions are available at

Run the setup package. In the ??Select Additional Tasks?? page of the wizard, make sure that both _Add ??Add application directory to your system path_ path?? and _Install ??Install development headers and libraries for C and C++_ C++?? options are checked:


*Note:* Note: Both the ImageMagick application directory and the Windows\System32 Windows System32 directory contain an executable named _convert.exe_. "convert.exe". Unless ImageMagick's directory is added the front of the system path, its copy will not be found. This will cause the test suggested at the completion of the installation to fail with a message _Invalid "Invalid Drive Specification_. Specification". Also note that Window's copy of _convert.exe_ "convert.exe" will not be found found, if ImageMagick is placed first in the path.

h2. Installation of the @rmagick@ gem

* Open a new command prompt.

Change current directory to the Redmine installation directory

Set @CPATH@ and @LIBRARY_PATH@ environment variables to point respectively to @ImageMagick@ installation directory @include@ and @lib@ subdirectories (so the DevKit will find them at build time)

set CPATH=C:\Program Files (x86)\ImageMagick-6.7.9-Q16\include
set LIBRARY_PATH=C:\Program Files (x86)\ImageMagick-6.7.9-Q16\lib

Install * Actually install the gem by running gem, e.g. with @gem install rmagick@ or @bundle install@. install --without=development test@, etc.


h2. Result

Check if the installation was successful on the Information page.