YAR19P (yet another ruby 1.9 problem)

[gra]

I've compiled Ruby 1.9.1p0 for HP-UX, installed newgem (and
dependencies) and attempted to create a gem. Sadly I'm not getting
very far:

$ newgem tre-rb
<internal:gem_prelude>:249:in `push_gem_version_on_load_path':
undefined method `<=>' for nil:NilClass (NoMethodError)
from <internal:gem_prelude>:14:in `gem'
from /pkt/pktdev3b/work/gagnew/app3/lib/ruby/gems/1.9.1/gems/
activesupport-2.3.2/lib/active_support/vendor.rb:12:in `<top (required)
>'
from /pkt/pktdev3b/work/gagnew/app3/lib/ruby/gems/1.9.1/gems/
activesupport-2.3.2/lib/active_support.rb:54:in `require'
from /pkt/pktdev3b/work/gagnew/app3/lib/ruby/gems/1.9.1/gems/
activesupport-2.3.2/lib/active_support.rb:54:in `<top (required)>'
from /pkt/pktdev3b/work/gagnew/app3/lib/ruby/gems/1.9.1/gems/
rubigen-1.5.2/lib/rubigen.rb:5:in `require'
from /pkt/pktdev3b/work/gagnew/app3/lib/ruby/gems/1.9.1/gems/
rubigen-1.5.2/lib/rubigen.rb:5:in `<top (required)>'
from /pkt/pktdev3b/work/gagnew/app3/lib/ruby/gems/1.9.1/gems/
newgem-1.3.0/bin/newgem:4:in `require'
from /pkt/pktdev3b/work/gagnew/app3/lib/ruby/gems/1.9.1/gems/
newgem-1.3.0/bin/newgem:4:in `<top (required)>'
from /pkt/pktdev3b/work/gagnew/app3/bin/newgem:19:in `load'
from /pkt/pktdev3b/work/gagnew/app3/bin/newgem:19:in `<main>'

Cheers,
Gra.