On ftp.chpc.utexas.edu under anonymous ftp in the directory
/packages/gnu there is a file called bash-cray-solaris-1.12.tar.gz.
It is the bash-1.12 source for a Cray XMP/YMP's running UNICOS 6.1.X and Sun
sparc's running Solaris 2.X.
There is a small chance that it might work on a Cray 2. I don't have a
Cray 2 so I connot test it. Even if it does not it should make a good base to
start a port of bash to a Cray 2. It has the latest alloca.c source form
Emacs 19.X which supports both XMP/YMP's and Cray 2'.s.