Rails question for ruby 1.9 / jruby 1.6

Hi,
I’m wondering about whether my rails installation just performed were
properly configured for ruby 1.9 . My concern stems from having
examined
the gems directory and seen only *1.8 *gems installed. Details now
follow:

Thanks to prior post I now have 1.9 as default version:

JRUBY_OPTS=–1.9

C:\jruby\lib\ruby\gems>jruby -v
jruby 1.6.0 (*ruby 1.9.2 *patchlevel 136) (2011-03-15 f3b6154) (Java
HotSpot™ Client VM 1.6.0_21) [Windows XP-x86-java]

After I did jgem install rails I see it is installed under 1.8. Is
this
correct? If not what other config tweak is needed to make it install 1.9
version?

(Note: *only *1.8 gems are there - *nothing *for 1.9…)
Directory of C:\jruby\lib\ruby\gems

04/08/2011 08:22 AM .
04/08/2011 08:22 AM …
04/08/2011 08:22 AM *1.8

At least the version of *rails *is correct :

C:\jruby\lib\ruby\gems>rails -v
Rails 3.0.6

It does seem a bit odd to have the same gems for 1.8 and 1.9, which
apparently it does.