PLugin, FFI, or shell process or ...?

Hi -

I want to be able to use the unix glibc2 library version of crypt(3)
from within Pharo and Gemstone to hash passwords using bcrypt.   I only
need it to work in Linux.  I could also use the bcrypt commandline
program from sourceforge.

Is there a recommended way to access a C library in a cross dialect manner?

Thanks

Paul