(can't include it in nm-*.h file because it causes conflicts with
a.out symbol definitions).
* hp300ux-nat.c (fetch_core_registers): Commented out; obsolete.
* config/m68k/hp300hpux.mh (NATDEPFILES): Added coredep.o and
corelow.o.
* config/m68k/nm-hp300hpux.h (NEED_SYS_CORE_H): Defined.
(REGISTER_U_ADDR): Defined.
* config/m68k/xm-hp300hpux.h (HAVE_TERMIOS): Define instead of
HAVE_TERMIO.
* config/pa/xm-hppah.h: Likewise.
config files moved to an appropriate config/<cpu> subdirectory.
* nm-*, xm-*, tm-*: All native, host, and target files, which
get linked to nm.h, xm.h, and tm.h respectively by configure,
moved to appropriate config/<cpu> subdirectory.