+ require 'gettext/version'
+
+ gettext_version = GetText::VERSION.split('.').map {|n| n.to_i}
+ include Comparable # required for Array#between?
+ unless gettext_version.between? [1, 8, 0], [1, 10, 0]
+ raise GetTextVersionError, "Unsupported ruby-gettext version installed: #{gettext_version.join '.'}; supported versions are 1.8.0-1.10.0"
+ end
+