From: Eric Kidd <emk.lists@...>
Date: 2006-03-20T22:36:43+09:00
Subject: Passing 'make test-all' on Ruby 1.8.4 on MacOS X

Getting Ruby 1.8.4 to pass 'make test-all' on MacOS X can be tricky.  
Here's a list of things which may help:

* Set your GCC back to version 3.3. This cleans up a lot of warning  
messages, and may prevent bugs caused by GCC 4.0.

   sudo gcc_select 3.3

* Disable your firewall (if you're on a safe network!) before running  
'make test-all', and turn it back on again afterwards. The Ruby  
networking tests assume they can listen on addresses other than  
127.0.0.1, which isn't a safe assumption under MacOS X. You can  
disable your firewall under "System Preferences" > "Sharing".

* Run 'make install' *before* running 'make test-all'. The test  
suites rely on an installed copy of Ruby to run.

Hope this helps! Some of these tips will apply to other platforms, too.

Cheers,
Eric