"sh: make: command not found" when running "$ bundle" after adding redcarpet gem to Rails app

Question

I'm getting the following when running "$ bundle" after adding "gem 'redcarpet'" to Gemfile:

$ bundle
...
Using paperclip (2.3.11) 
Using passenger (3.0.7) 
Installing redcarpet (1.17.2) with native extensions /Users/robs/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:551:in `rescue in block in build_extensions': ERROR: Failed to build gem native extension. (Gem::Installer::ExtensionBuildError)

    /Users/robs/.rvm/rubies/ruby-1.9.2-p180/bin/ruby extconf.rb 
creating Makefile

make
sh: make: command not found

Gem files will remain installed in /Users/robs/.rvm/gems/[email protected]/gems/redcarpet-1.17.2 for inspection.
Results logged to /Users/robs/.rvm/gems/[email protected]/gems/redcarpet-1.17.2/ext/redcarpet/gem_make.out
from /Users/robs/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:529:in `block in build_extensions'
from /Users/robs/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:504:in `each'
from /Users/robs/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:504:in `build_extensions'
from /Users/robs/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:180:in `install'
from /Users/robs/.rvm/gems/ruby-1.9.2-p180@global/gems/bundler-1.0.15/lib/bundler/source.rb:101:in `block in install'
from /Users/robs/.rvm/gems/ruby-1.9.2-p180@global/gems/bundler-1.0.15/lib/bundler/rubygems_integration.rb:78:in `preserve_paths'
...
from /Users/robs/.rvm/gems/ruby-1.9.2-p180@global/gems/bundler-1.0.15/bin/bundle:13:in `<top (required)>'
from /Users/robs/.rvm/gems/[email protected]/bin/bundle:19:in `load'
from /Users/robs/.rvm/gems/[email protected]/bin/bundle:19:in `<main>'

Full gist here.

I am using rvm with different gemsets. This application is using the @rails-3.0 gemset. Here is my previous question regarding that setup.

I noticed the "Installing redcarpet (1.17.2)..." line includes "/Users/robs/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb". Is this part of the problem? How can I get this to install?

Thanks.

Answer 1

Same issue aftering updating to Mountain Lion. You need to get the new command line tools and run:

sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer 

Src: Upgrading to Mountain Lion and XCode 4 broke my "make"?

If after this you still get an error like this:

make: /usr/bin/gcc-4.2: No such file or directory

A symlink will sort out that issue:

sudo ln -s /usr/bin/gcc /usr/bin/gcc-4.2

As one of the comments on this post states.

It might not be the best solution but it works, there's surely something else to it.

Answer 2

I had the same problems after a Time Machine update. Installing Xcode and the along coming developer tools fixed that issue.