yarv and C

[progcat]

I have a somewhat large library written in C that I want to be able to
call from ruby and I have used SWIG in the past. Right now if I did
this with swig it would take me several
days, and I don't want to risk this becoming obsolete in 3 months.

Am I right that yarv is the future? Can SWIG be used with yarv or
would it
be better for me to build my library into yarv? (modify the language)

I don't want to have to write new glue code when the next release of
ruby (or yarv) is out.

Any opinions or pointers are greatly appreciated.

Thanks in advance,
Tom