* 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.
