I have seen other people with the same issue of installing RMagick on Mountain Lion However none of the suggested solutions have allowed me to successfully install rmagick.
Here is the error message I am getting:
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
checking for Ruby version >= 1.8.5... yes
checking for /usr/local/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... yes
checking for sys/types.h... yes
checking for wand/MagickWand.h... yes
checking for InitializeMagick() in -lMagickCore... no
checking for InitializeMagick() in -lMagick... no
checking for InitializeMagick() in -lMagick++... no
Can't install RMagick 2.13.1. Can't find the ImageMagick library or one of the dependent libraries. Check the mkmf.log file for more detailed information.
*** 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.
Things I have done:
Installed XCode
Installed the command line tools
Installed XQuartz
Installed homebrew with imagemagick library
Installed most recent version of RVM
Symlinked GCC
Uninstalled and reinstalled both RVM and imagemagick
Any ideas why I still can't download rmagick?
Best Answer
It appears it's a problem reported on the Homebrew github repo (https://github.com/mxcl/homebrew/issues/16625) blaming rmagick itself not supporting newer versions of imagemagick. On that same issue (https://github.com/mxcl/homebrew/issues/16625#issuecomment-11519383), you can find this link: https://coderwall.com/p/wnomjg which actually worked for me. This is what he does:
Hope this helps.