Ruby: require vs require_relative - best practice to workaround running in both Ruby <1.9.2 and >=1.9.2

What is the best practice if I want to require a relative file in Ruby and I want it to work in both 1.8.x and >=1.9.2? I see a few options: just do $LOAD_PATH << '.' and forget everything do $LOAD_PATH << File.dirname(__FILE__) require './path/to/file' check if RUBY_VERSION < 1.9.2, then define require_relative as require, use require_relative everywhere where it's needed afterwards check if requ

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