gistfile1.txt

╭─@entermac01.local ~  
╰─ rvm requirements

  Notes for Mac OS X 10.7.4, Xcode 4.3.2.

For MacRuby: Install LLVM first.

For JRuby:  Install the JDK. See http://developer.apple.com/java/download/  # Current Java version "1.6.0_26"
For IronRuby: Install Mono >= 2.6
For Ruby 1.9.3: Install libksba # If using Homebrew, 'brew install libksba'

You can use & download osx-gcc-installer: https://github.com/kennethreitz/osx-gcc-installer
** NOTE: Currently, Node.js is having issues building with osx-gcc-installer. The only fix is to install Xcode over osx-gcc-installer.

We had reports of http://hpc.sourceforge.net/ making things work, but it looks like not easiest/safest to setup.

To use an RVM installed Ruby as default, instead of the system ruby:

    rvm install 1.8.7 # installs patch 357: closest supported version
    rvm system ; rvm gemset export system.gems ; rvm 1.8.7 ; rvm gemset import system.gems # migrate your gems
    rvm alias create default 1.8.7

And reopen your terminal windows.

Xcode 4.2:
 * is only supported by ruby 1.9.3+
 * it breaks gems with native extensions, especially DB drivers.

Xcode 4.3+ users
- please be warned
- only ruby-1.9.3-p125+ is partially supported
- in case of any compilation issues:
 * downgrade to Xcode 4.1
 * uninstall Xcode and install osx-gcc-installer
and reinstall your rubies.