MKPROFILE MKSHARE, which default to `yes' unless an equivalent NOxxx
variable is defined.
* Add MKCATPAGES, which if "no" prevents catpages from being built or installed
Users should use "MKxxx=no" instead of "NOxxx=" in /etc/mk.conf, because
this allows easy override on the make(1) command line (e.g 'make MKSHARE=yes'
to override MKSHARE=no in /etc/mk.conf).
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.
* Allow bsd.man.mk to be included separately.
* Always include bsd.own.mk and bsd.obj.mk.
* Include bsd.man.mk and bsd.nls.mk even if NOMAN or NONLS; just turn off
building of the affected files instead.
* Require bsd.subdir.mk to be included explicitly.
(Will make appropriate changes to Makefiles shortly.)
Use bsd.subdir.mk for building subdirectories.
Don't forget to remove x.cc and x.C when using SHAREDSTRINGS.
Make ${PROG} always depend on ${LIBCRT0}.
Don't duplicate code between cleandir and clean.
Move tags target to bsd.dep.mk.
Move STRIP to bsd.own.mk.
Remove redundant definitions of {BIN,MAN}{DIR,GRP,OWN,MODE}.
Move {LIB,DOC}{DIR,GRP,OWN,MODE} defaults to bsd.own.mk.
deqn, and dtbl.
Fixed make clean to remove the man pages (Bill fixed this in the distribution,
but not in the original source)
Changed install to leave the original file around, by using 'cp' instead of
'mv'. "install -c ..."