[DRE-maint] Bug#587767: libactivesupport-ruby1.8: Missing import of 'thread' when rubygems not installed

[Jérémy Lal]

It's now actually worse :

	ruby -e "require 'active_support'"

	/usr/lib/ruby/1.8/active_support/dependencies.rb:55: uninitialized constant ActiveSupport::Dependencies::Mutex (NameError)
	from /usr/lib/ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require'
	from /usr/lib/ruby/1.8/rubygems/custom_require.rb:36:in `require'
	from /usr/lib/ruby/1.8/active_support.rb:56
	from -e:1:in `require'
	from -e:1

so the bug is triggered even with rubygems=1.6.2-1 installed.

Jérémy.