I’ve just started a new project.. well an old project that uses ruby 1.8.7 and rails 2.3.5.

If you get this error:

1.8/timeout.rb:60: [BUG] Segmentation fault

Its a problem with lion and ruby. Uninstall any version of 1.8.7 you have with

rvm remove 1.8.7

and then run

CC=/usr/bin/gcc-4.2 rvm install ruby-1.8.7 --force