-put "echo"s for the daughter Makefile into a subshell to get them all
into the Makefile (instead of stdout - should fix PR misc/9336 by
Bernd Ernesti)
-change operator for "realall" back to ":" - rules are supposed to
accumulate, and "::" clashes with the definition in <bsd.own.mk>
-call sub-make with the "all" target to make sure we don't get just
the first rule
and the filesystem is full. Added ${RENAME} flag to install, which when set
to -r installs on a temporary file and then renames to the final destination.
${RENAME} is currently set to nothing in bsd.own.mk, but one can turn it
on in /etc/mk.conf.