* main.c (print_gdb_version): Update copyright year to 1993.
* nm-hp300bsd.h: Decide whether this is BSD 4.3 or 4.4,
conditionalize this file on it. FIXME, right way is to split
these into two config files.
(ATTACH_DETACH): Define for BSD 4.4
(PTRACE_ARG_TYPE): caddr_t for BSD 4.4, unset for 4.3.
(U_REGS_OFFSET): Revise for 4.4.
(REGISTER_U_ADDR): Separate for 4.4, but it doesn't work yet.
* xm-hp300bsd.h: Move definitions of UINT_MAX, INT_MAX, INT_MIN,
LONG_MAX into this file to avoid cpp "redefinition" warnings.
* xm-hp300bsd.h: Define PSIGNAL_IN_SIGNAL_H and put a compatible
definition here, to handle both BSD 4.3 and 4.4 systems.
* tm-i386bsd.h (NUM_REGS): There are only eleven, not twelve.
the program might be running in another process, but only for
systems with this brain death (#ifdef ONE_PROCESS_WRITETEXT).
* xm-hp300bsd.h, xm-mips.h, xm-vax.h: Define it.
