Follow-up r318105: Don't use NO_OBJ at top-level, use NO_OBJWALK.

NO_OBJ has a very specific meaning in sub-directories in that no object
directory will be made.  If a user wanted to skip the 'make obj' phase then
passing -DNO_OBJ would break all sub-directories from building properly.  Using
NO_OBJ internally also causes issue with NO_OBJ handling being added in
share/mk/bsd.init.mk soon.

Sponsored by:	Dell EMC Isilon

Makefile.inc1

@@ -301,7 +301,7 @@ CLEANDIR=	cleandir
 
 .if defined(WORLDFAST)
 NO_CLEAN=	t
-NO_OBJ=		t
+NO_OBJWALK=	t
 .endif
 
 .if ${MK_META_MODE} == "yes"
@@ -312,11 +312,11 @@ NO_OBJ=		t
 NO_CLEAN=	t
 .endif
 .endif
-.if defined(NO_OBJ) || ${MK_AUTO_OBJ} == "yes"
+.if defined(NO_OBJWALK) || ${MK_AUTO_OBJ} == "yes"
-NO_OBJ=		t
+NO_OBJWALK=	t
 NO_KERNELOBJ=	t
 .endif
-.if !defined(NO_OBJ)
+.if !defined(NO_OBJWALK)
 _obj=		obj
 .endif
 
@@ -942,7 +942,7 @@ WMAKE_TGTS+=	_sanity_check _worldtmp _legacy
 WMAKE_TGTS+=	_bootstrap-tools
 .endif
 WMAKE_TGTS+=	_cleanobj
-.if !defined(NO_OBJ)
+.if !defined(NO_OBJWALK)
 WMAKE_TGTS+=	_obj
 .endif
 WMAKE_TGTS+=	_build-tools _cross-tools
@@ -1804,7 +1804,7 @@ legacy: .PHONY
 .for _tool in tools/build ${_elftoolchain_libs}
 	${_+_}@${ECHODIR} "===> ${_tool} (obj,includes,all,install)"; \
 	    cd ${.CURDIR}/${_tool}; \
-	    if [ -z "${NO_OBJ}" ]; then ${MAKE} DIRPRFX=${_tool}/ obj; fi; \
+	    if [ -z "${NO_OBJWALK}" ]; then ${MAKE} DIRPRFX=${_tool}/ obj; fi; \
 	    ${MAKE} DIRPRFX=${_tool}/ DESTDIR=${WORLDTMP}/legacy includes; \
 	    ${MAKE} DIRPRFX=${_tool}/ MK_INCLUDES=no all; \
 	    ${MAKE} DIRPRFX=${_tool}/ MK_INCLUDES=no \
@@ -1950,7 +1950,7 @@ bootstrap-tools: .PHONY
 ${_bt}-${_tool}: .PHONY .MAKE
 	${_+_}@${ECHODIR} "===> ${_tool} (obj,all,install)"; \
 		cd ${.CURDIR}/${_tool}; \
-		if [ -z "${NO_OBJ}" ]; then ${MAKE} DIRPRFX=${_tool}/ obj; fi; \
+		if [ -z "${NO_OBJWALK}" ]; then ${MAKE} DIRPRFX=${_tool}/ obj; fi; \
 		${MAKE} DIRPRFX=${_tool}/ all; \
 		${MAKE} DIRPRFX=${_tool}/ DESTDIR=${WORLDTMP}/legacy install
 
@@ -2001,7 +2001,7 @@ build-tools_${_tool}: .PHONY
 	${_+_}@${ECHODIR} "===> ${_tool} (${_bt_clean:D${_bt_clean},}obj,build-tools)"; \
 		cd ${.CURDIR}/${_tool}; \
 		if [ -n "${_bt_clean}" ]; then ${MAKE} DIRPRFX=${_tool}/ ${_bt_clean}; fi; \
-		if [ -z "${NO_OBJ}" ]; then ${MAKE} DIRPRFX=${_tool}/ obj; fi; \
+		if [ -z "${NO_OBJWALK}" ]; then ${MAKE} DIRPRFX=${_tool}/ obj; fi; \
 		${MAKE} DIRPRFX=${_tool}/ build-tools
 build-tools: build-tools_${_tool}
 .endfor
@@ -2086,7 +2086,7 @@ cross-tools: .MAKE .PHONY
     ${_usb_tools}
 	${_+_}@${ECHODIR} "===> ${_tool} (obj,all,install)"; \
 		cd ${.CURDIR}/${_tool}; \
-		if [ -z "${NO_OBJ}" ]; then ${MAKE} DIRPRFX=${_tool}/ obj; fi; \
+		if [ -z "${NO_OBJWALK}" ]; then ${MAKE} DIRPRFX=${_tool}/ obj; fi; \
 		${MAKE} DIRPRFX=${_tool}/ all; \
 		${MAKE} DIRPRFX=${_tool}/ DESTDIR=${WORLDTMP} install
 .endfor
@@ -2227,7 +2227,7 @@ native-xtools: .PHONY
 	# needed build tools are built.
 	${_+_}cd ${.CURDIR}; ${NXBTMAKE} _includes MK_CLANG=no MK_GCC=no
 	${_+_}cd ${.CURDIR}; ${NXBTMAKE} _libraries MK_CLANG=no MK_GCC=no
-.if !defined(NO_OBJ)
+.if !defined(NO_OBJWALK)
 	${_+_}cd ${.CURDIR}; ${NXBMAKE} SUBDIR_OVERRIDE="${NXBDIRS:M*}" _obj
 .endif
 	${_+_}cd ${.CURDIR}; ${NXBMAKE} SUBDIR_OVERRIDE="${NXBDIRS:M*}" \
@@ -2504,7 +2504,7 @@ ${_lib}__PL: .PHONY .MAKE
 .if exists(${.CURDIR}/${_lib})
 	${_+_}@${ECHODIR} "===> ${_lib} (obj,all,install)"; \
 		cd ${.CURDIR}/${_lib}; \
-		if [ -z "${NO_OBJ}" ]; then ${MAKE} MK_TESTS=no DIRPRFX=${_lib}/ obj; fi; \
+		if [ -z "${NO_OBJWALK}" ]; then ${MAKE} MK_TESTS=no DIRPRFX=${_lib}/ obj; fi; \
 		${MAKE} MK_TESTS=no MK_PROFILE=no -DNO_PIC \
 		    DIRPRFX=${_lib}/ all; \
 		${MAKE} MK_TESTS=no MK_PROFILE=no -DNO_PIC \
@@ -2517,7 +2517,7 @@ ${_lib}__L: .PHONY .MAKE
 .if exists(${.CURDIR}/${_lib})
 	${_+_}@${ECHODIR} "===> ${_lib} (obj,all,install)"; \
 		cd ${.CURDIR}/${_lib}; \
-		if [ -z "${NO_OBJ}" ]; then ${MAKE} MK_TESTS=no DIRPRFX=${_lib}/ obj; fi; \
+		if [ -z "${NO_OBJWALK}" ]; then ${MAKE} MK_TESTS=no DIRPRFX=${_lib}/ obj; fi; \
 		${MAKE} MK_TESTS=no DIRPRFX=${_lib}/ all; \
 		${MAKE} MK_TESTS=no DIRPRFX=${_lib}/ install
 .endif
@@ -2855,7 +2855,7 @@ _xb-bootstrap-tools: .PHONY
     ${_yacc}
 	${_+_}@${ECHODIR} "===> ${_tool} (obj,all,install)"; \
 	cd ${.CURDIR}/${_tool}; \
-	if [ -z "${NO_OBJ}" ]; then ${CDMAKE} DIRPRFX=${_tool}/ obj; fi; \
+	if [ -z "${NO_OBJWALK}" ]; then ${CDMAKE} DIRPRFX=${_tool}/ obj; fi; \
 	${CDMAKE} DIRPRFX=${_tool}/ all; \
 	${CDMAKE} DIRPRFX=${_tool}/ DESTDIR=${CDTMP} install
 .endfor
@@ -2877,7 +2877,7 @@ _xb-cross-tools: .PHONY
 .for _tool in ${XDEVDIRS}
 	${_+_}@${ECHODIR} "===> xdev ${_tool} (obj,all)"; \
 	cd ${.CURDIR}/${_tool}; \
-	if [ -z "${NO_OBJ}" ]; then ${CDMAKE} DIRPRFX=${_tool}/ obj; fi; \
+	if [ -z "${NO_OBJWALK}" ]; then ${CDMAKE} DIRPRFX=${_tool}/ obj; fi; \
 	${CDMAKE} DIRPRFX=${_tool}/ all
 .endfor
 
@@ -2912,7 +2912,7 @@ _xi-cross-tools: .PHONY
 .endfor
 
 _xi-includes: .PHONY
-.if !defined(NO_OBJ)
+.if !defined(NO_OBJWALK)
 	${_+_}cd ${.CURDIR}; ${CD2MAKE} -f Makefile.inc1 _obj \
 		DESTDIR=${XDDESTDIR}
 .endif

share/man/man7/build.7

@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd October 26, 2017
+.Dd November 3, 2017
 .Dt BUILD 7
 .Os
 .Sh NAME
@@ -683,7 +683,7 @@ documentation as part of the
 target.
 .It Va NO_LIBS
 If set, the libraries phase will be skipped.
-.It Va NO_OBJ
+.It Va NO_OBJWALK
 If set, no object directories will be created.
 This should only be used if object directories were created in a
 previous build and no new directories are connected.
@@ -700,7 +700,7 @@ If set, the build target
 .Cm buildworld
 defaults to setting
 .Va NO_CLEAN ,
-.Va NO_OBJ ,
+.Va NO_OBJWALK ,
 and will skip most bootstrap phases.
 It will only bootstrap libraries and build all of userland.
 This option should be used only when it is known that none of the bootstrap

sys/conf/kern.pre.mk

@@ -24,11 +24,11 @@ _srcconf_included_:
 .MAKE.MODE+=	curdirOk=yes
 .endif
 
-.if defined(NO_OBJ) || ${MK_AUTO_OBJ} == "yes"
+.if defined(NO_OBJWALK) || ${MK_AUTO_OBJ} == "yes"
-NO_OBJ=		t
+NO_OBJWALK=		t
 NO_MODULES_OBJ=	t
 .endif
-.if !defined(NO_OBJ)
+.if !defined(NO_OBJWALK)
 _obj=		obj
 .endif