Satoshi Shiba wrote in post #1035919:
> cast_off-0.4.0 has been released.
> Currently, CastOff is alpha version. It may make your program unstable.
>
>
> * About CastOff
> CastOff is a compiler for Ruby1.9.3.

As a note, there may have been a related work several years ago (though 
not 1.9 compatible by any means):
http://ruby2cext.rubyforge.org

Is yours related?
Best of luck.
-r

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