From: Mark Volkmann <mark@...>
Date: 2007-01-26T01:23:15+09:00
Subject: installing Ruby under Mac OS X

I just downloaded the source for Ruby 1.8.5-p12 and built it under  
Mac OS X using the following steps.

unzip and untar the downloaded file
cd to the directory createed by untarring
su root
./configure
make
make test - reports "test succeeded"
make install
make install-doc

When I run "ruby -v", I get "ruby 1.8.5 (2006-12-25 patchlevel 12)  
[i686-darwin8.8.1]".
When I run "ruby -rrbconfig -e 'p Config::CONFIG["ruby_version"]'", I  
get ".".
I should be getting "1.8.5". Am I doing something wrong in the way  
I'm installing Ruby?

This is preventing me from installing gems. I get the following.
ERROR:  While executing gem ... (ArgumentError)
     install directory "/usr/local/lib/ruby/gems/./gems/ 
activesupport-1.4.0" not absolute