“rmagick” gem installation issue

Question

I am having issue while trying to install \"rmagick\" gem on centos. Following is the output I am having. Can anyone please help me identifying what package I am missing

Answer 1

The error message says:

Package MagickCore was not found in the pkg-config search path.
Perhaps you should add the directory containing `MagickCore.pc'
to the PKG_CONFIG_PATH environment variable
No package 'MagickCore' found

It seems you missing no package at all, you just have to tell pkg-config where to find the MagickCore.pc file to build the extension. If you have installed the package ImageMagick-devel using yum the file should be inside the directory /usr/lib/pkgconfig or /usr/lib64/pkgconfig (depending on your architecture). Check with this command (from now I assume you are on a amd64 machine, if it's not the case replace lib64 with lib):

$ find /usr/lib64/pkgconfig -name MagickCore.pc

If the file is there you just have to install rmagick with this command:

$ PKG_CONFIG_PATH='/usr/lib64/pkgconfig' gem install rmagick