It's normal ?
pigeon% cat b.rb
#!/usr/bin/ruby
$SAFE = 1
require 'tt'
pigeon%
pigeon% cat tt.rb
p "#{RUBY_VERSION} #{RUBY_RELEASE_DATE} #{RUBY_PLATFORM} : #$SAFE"
pigeon%
pigeon% b.rb
"1.4.6 2000-08-16 i686-linux : 1"
pigeon%
pigeon% ./ruby b.rb
"1.6.0 2000-08-24 i686-linux : 0"
pigeon%
Guy Decoux