diff --git a/share/ruby-build/1.8.6-p420 b/share/ruby-build/1.8.6-p420
new file mode 100644
index 00000000..3291b122
--- /dev/null
+++ b/share/ruby-build/1.8.6-p420
@@ -0,0 +1,3 @@
+use_gcc42_on_lion
+install_package "ruby-1.8.6-p420" "http://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.6-p420.tar.gz"
+install_package "rubygems-1.3.7" "http://production.cf.rubygems.org/rubygems/rubygems-1.3.7.tgz" ruby