Log Message:
   Now that install has been fixed to deal with -r in the symlink case,
   make bsd.lib.mk use INSTALL_SYMLINK instead of mv and ln -s.
   Note: There is still one weird case I left alone, in which symlinks
   get built in the objdir. I didn't want to log metadata for those links
   so I left the old machinery in for them.
   XXX do we even need that elaborate dance for the ln's in the objdir?


is this for shlibs?  yes please.  i want to be able to continue to
set LD_LIBRARY_PATH=/usr/src/lib/libc/obj.foo and get my new shlibs
before they're installed....


.mrg.