gistfile1.txt

$ rvm install ruby-head

Installing Ruby from source to: /Users/conradwt/.rvm/rubies/ruby-head


Updating ruby from http://svn.ruby-lang.org/repos/ruby/trunk


Compiling ruby-head, this may take a while, depending on your cpu(s)...


Installing ruby-head


Installation of ruby-head is complete.


Installing rubygems dedicated to ruby-head...


Installing rubygems for /Users/conradwt/.rvm/rubies/ruby-head/bin/ruby


Installation of rubygems ruby-head completed successfully.

ln: /Users/conradwt/.rvm/rubies/ruby-head/lib/ruby/gems/: No such file or directory

Installing gems for ruby-head.


Installing rake


Installation of gems for ruby-head is complete.

$ gem environment
RubyGems Environment:
  - RUBYGEMS VERSION: 1.3.5
  - RUBY VERSION: 1.9.2 (2010-02-14 patchlevel -1) [powerpc-darwin9.8.0]
  - INSTALLATION DIRECTORY: /Users/conradwt/.rvm/gems/ruby-head
  - RUBYGEMS PREFIX: /opt/local/lib/ruby/gems/1.9.1/gems/rubygems-update-1.3.5
  - RUBY EXECUTABLE: /Users/conradwt/.rvm/rubies/ruby-head/bin/ruby
  - EXECUTABLE DIRECTORY: /Users/conradwt/.rvm/gems/ruby-head/bin
  - RUBYGEMS PLATFORMS:
    - ruby
    - powerpc-darwin-9
  - GEM PATHS:
     - /Users/conradwt/.rvm/gems/ruby-head
     - /opt/local/lib/ruby/gems/1.9.1
     - /Users/conradwt/.rvm/gems/ruby-head%global
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :benchmark => false
     - :backtrace => false
     - :bulk_threshold => 1000
     - :sources => ["http://gemcutter.org", "http://gems.rubyforge.org/", "http://gems.github.com"]
  - REMOTE SOURCES:
     - http://gemcutter.org
     - http://gems.rubyforge.org/
     - http://gems.github.com

Note:  It seems that the RUBYGEMS PREFIX and GEM PATHS (i.e. /opt/local/lib/ruby/gems/1.9.1) are not correctly being set.