`require': no such file to load -- open3_backport (LoadError) #167
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Copied from maestrodev#16 (was raised for librarian-puppet-maestrodev but looks like it would affect this as well)
Hello,
I have a failure in Travis on Ruby 1.8.7 - the open3_backport gem isn't being installed. This appears to be due to the gemspec conditionally adding this as a dependency, but it's evaluated at build time, not install time, so the dependency isn't added to Ruby < 1.9 installs.
Apparently this is the required approach: http://en.wikibooks.org/wiki/Ruby_Programming/RubyGems#How_to_install_different_versions_of_gems_depending_on_which_version_of_ruby_the_installee_is_using
References: