Getting rails installed on my mac

I keep getting an error when I attempt to install rails. Yes,
command-line tools is installed.

$ sudo gem install rails
Password:
Building native extensions. This could take a while...
ERROR: Error installing rails:
  ERROR: Failed to build gem native extension.

        /Users/me/.rvm/rubies/ruby-1.9.3-p327/bin/ruby extconf.rb
creating Makefile

make
compiling generator.c
make: /usr/bin/gcc-4.2: No such file or directory
make: *** [generator.o] Error 1

Gem files will remain installed in
/Users/me/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/gems/1.9.1/gems/json-1.7.5
for inspection.
Results logged to
/Users/me/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/gems/1.9.1/gems/json-1.7.5/ext/json/ext/generator/gem_make.out

Install xcode.

I feel like I should elaborate. Install xcode and if you already have
it, link llvm over. sudo ln -s /usr/bin/llvm-gcc-4.2 /usr/bin/gcc-4.2.
I could have the version strings wrong since I don't work on a Mac
full time, I rarely get on a Mac but that's what I remember from
earlier this year.

I appreciate the quick response, but as I mentioned in my initial
question, commandline-tools (the suite in xcode that is relevant) is
installed. In addition, xcode is also installed. However I am still
getting the afore mentioned error.

Hi,

I recall that recent Xcode version does not include required command line tools.
Try installing osx-gcc from github.

https://github.com/kennethreitz/osx-gcc-installer

Cheers,

Glen

That worked great Glen! Thanks so much for your help

In addition to installing the command line tools, you have to accept the Xcode license agreement, too. If you haven’t done this manually, then RVM fails without giving you any really useful information about the cause of the failure.

Try running the following, and agreeing to the license:

sudo xcodebuild -license

After that, RVM should be able to compile recent rubies and native extensions properly.

Perfect Todd. I did miss that part. Thank you