I'm having some trouble installing a Ruby Gem called Lingust for my Mac. I get the error message below and have no idea how to solve the issue. Any help would be greatly appreciated.
gem install github-linguist
Building native extensions. This could take a while...
ERROR: Error installing github-linguist:
ERROR: Failed to build gem native extension.
/Users/kanery/.rvm/rubies/ruby-2.0.0-p643/bin/ruby -r./siteconf20151008-9054-b4exbs.rb extconf.rb
checking for gmake... no
checking for make... yes
checking for cmake... no
ERROR: CMake is required to build Rugged.
*** 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.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/Users/kanery/.rvm/rubies/ruby-2.0.0-p643/bin/ruby
--use-system-libraries
extconf failed, exit code 1
Gem files will remain installed in /Users/kanery/.rvm/gems/ruby-2.0.0-p643/gems/rugged-0.24.0b0 for inspection.
Reading the installation instructions of Rugged, you can see that both CMake and pkg-config are required. Looking at your error message, it seems like CMake is not installed on your system.
If you are using Homebrew, you can install it by running
brew install cmake
Or you can install it from the source following these instructions.