related files. Partition into three categories:
* shl.mi -- MI sharedlib files present on all ports with shared libs
* shl.aout -- MI sharedlib files present on all ELF ports
* shl.elf -- MI sharedlib files present on all a.out ports
Add rudimentary shl* support to makeflist.
Remove files left empty after shlib normalization.
Add ad.mips where appropriate.
Make libc, libedit numbers consistent (libc.so.12.29, libedit.2.1).
* factor all m68k common stuff into lists/*/ad.m68k
XXX: this should be done for mips (when it's not just the pmax), and
powerpc (when there's a powerpc port put here ...)
used when compiling (or should only be used then), so putting them into
xcomp is good even though putting them into xbase wouldn't cost too
much space.
