[RFA:] docs: FUNCTION_ARG_CALLEE_COPIES vs. FUNCTION_ARG_PASS_BY_REFERENCE. <URL:http://gcc.gnu.org/ml/gcc-patches/2002-11/msg00634.html>. [RFA:] lib/prune.exp: Prune more warnings for unimplemented -fpic/-fPIC <URL:http://gcc.gnu.org/ml/gcc-patches/2002-10/msg01593.html>. brgds, H-P