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utgarda/tools_check.rb

Created May 26, 2011 22:41
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tools_check.rb
major, minor = `bison --version`.scan(/bison \(GNU Bison\) (\d+)\.(\d+)/)[0].map(&:to_i)
$?.exitstatus == 0 && ([major, minor] <=> [2,4]) >=0
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