Can't gem install Celluloid using Rubinius 2.0.0

Question

I have rvm set to

# .rvmrc
rvm use rbx-2.0.0-rc1 

and it sets the version correctly

$ ruby -v
rubinius 2.0.0rc1 (1.8.7 release 2012-11-02 JI) [x86_64-apple-darwin12.2.1]

when I try to

$ gem install celluloid -v '0.12.3'

I get the error

ERROR:  Error installing celluloid:
celluloid requires Ruby version >= 1.9.2.

Whats the problem? I know Celluloid supports Rubinius because it is the recommended interpreter. https://github.com/celluloid/celluloid

Update: I figured it out thanks to this link https://gist.github.com/4123305

I needed to pass the -X19 flag

ruby -X19 -S bundle

Answer 1

I figured it out thanks to this link https://gist.github.com/4123305

I needed to pass the -X19 flag

ruby -X19 -S bundle

Answer 2

You can force this at compilation level:

rvm install rbx --1.9

now all uses of rbx will work by default in 1.9 mode.