Use reach-over sources from common/lib/libc
Move UCB-licensed code from 4-clause to 3-clause licence.Patches provided by Joel Baker in PR 22280, verified by myself.
Add register prefixes.
Use <machine/asm.h>
New-style RCS ids. Use the RCSID() macro where appropriate.
need these now, with new net Makefile.inc
Clean up deleted files.
Machine-dependent files for generic m68k machines (copied from hp300)