Unreviewed 3.3 warning patches. (powerpc-apple-darwin6.0)

[rbrown64@csc.com.au]

The following minor patches remove warnings building 3.3 snapshots
on powerpc-apple-darwin6.0.
Copyright assigned but no CVS write access (or CVS access here).

http://gcc.gnu.org/ml/gcc-patches/2002-11/msg00721.html
gcc/unwind-dw2-fde.h
http://gcc.gnu.org/ml/gcc-patches/2002-11/msg00404.html     gcc/config.gcc
http://gcc.gnu.org/ml/gcc-patches/2002-11/msg00385.html
config/rs6000/rs6000.{c,md}
http://gcc.gnu.org/ml/gcc-patches/2002-11/msg00263.html     java/lang.c