sstephenson/ruby-build — pull request #90 by ipoerner (2011-11-08 22:28:16+00:00)
Title: Allow passing custom options to ruby-build when calling rbenv-install

In the same manner as issue #89, rbenv-install may look for RUBY_BUILD_OPTS to forward to ruby-build. While this did not fix any particular issue for me, it's proven to be useful when enabling verbose mode for ruby-build, for example.