Flag recursive make targets with .MAKE (has no effect on fmake)

make -n will still exectute such targets
make -N will not.

Reviewed by:	obrien

share/mk/bsd.subdir.mk

@@ -36,14 +36,14 @@ __<bsd.subdir.mk>__:
 
 DISTRIBUTION?=	base
 .if !target(distribute)
-distribute:
+distribute: .MAKE
 .for dist in ${DISTRIBUTION}
 	${_+_}cd ${.CURDIR}; \
 	    ${MAKE} install -DNO_SUBDIR DESTDIR=${DISTDIR}/${dist} SHARED=copies
 .endfor
 .endif
 
-_SUBDIR: .USE
+_SUBDIR: .USE .MAKE
 .if defined(SUBDIR) && !empty(SUBDIR) && !defined(NO_SUBDIR)
 	@${_+_}set -e; for entry in ${SUBDIR}; do \
 		if test -d ${.CURDIR}/$${entry}.${MACHINE_ARCH}; then \
@@ -60,7 +60,7 @@ _SUBDIR: .USE
 	done
 .endif
 
-${SUBDIR}: .PHONY
+${SUBDIR}: .PHONY .MAKE
 	${_+_}@if test -d ${.TARGET}.${MACHINE_ARCH}; then \
 		cd ${.CURDIR}/${.TARGET}.${MACHINE_ARCH}; \
 	else \
@@ -81,7 +81,7 @@ ${__stage}${__target}:
 ${__stage}${__target}: _SUBDIR
 .endif
 .endfor
-${__target}:
+${__target}: .MAKE
 	${_+_}set -e; cd ${.CURDIR}; ${MAKE} build${__target}; ${MAKE} install${__target}
 .endfor