Index: head/share/mk/bsd.dep.mk
===================================================================
--- head/share/mk/bsd.dep.mk	(revision 321484)
+++ head/share/mk/bsd.dep.mk	(revision 321485)
@@ -1,342 +1,342 @@
 # $FreeBSD$
 #
 # The include file <bsd.dep.mk> handles Makefile dependencies.
 #
 #
 # +++ variables +++
 #
 # CLEANDEPENDDIRS	Additional directories to remove for the cleandepend
 # 			target.
 #
 # CLEANDEPENDFILES	Additional files to remove for the cleandepend target.
 #
 # CTAGS		A tags file generation program [gtags]
 #
 # CTAGSFLAGS	Options for ctags(1) [not set]
 #
 # DEPENDFILE	dependencies file [.depend]
 #
 # GTAGSFLAGS	Options for gtags(1) [-o]
 #
 # HTAGSFLAGS	Options for htags(1) [not set]
 #
 # SRCS          List of source files (c, c++, assembler)
 #
 # DPSRCS	List of source files which are needed for generating
 #		dependencies, ${SRCS} are always part of it.
 #
 # +++ targets +++
 #
 #	cleandepend:
 #		remove ${CLEANDEPENDFILES}; remove ${CLEANDEPENDDIRS} and all
 #		contents.
 #
 #	depend:
 #		Make the dependencies for the source files, and store
 #		them in the file ${DEPENDFILE}.
 #
 #	tags:
 #		In "ctags" mode, create a tags file for the source files.
 #		In "gtags" mode, create a (GLOBAL) gtags file for the
 #		source files.  If HTML is defined, htags(1) is also run
 #		after gtags(1).
 
 .if !target(__<bsd.init.mk>__)
 .error bsd.dep.mk cannot be included directly.
 .endif
 
 CTAGS?=		gtags
 CTAGSFLAGS?=
 GTAGSFLAGS?=	-o
 HTAGSFLAGS?=
 
 .if ${MK_DIRDEPS_BUILD} == "no"
 .MAKE.DEPENDFILE= ${DEPENDFILE}
 .endif
 CLEANDEPENDFILES+=	${DEPENDFILE} ${DEPENDFILE}.*
 .if ${MK_META_MODE} == "yes"
 CLEANDEPENDFILES+=	*.meta
 .endif
 
 # Keep `tags' here, before SRCS are mangled below for `depend'.
 .if !target(tags) && defined(SRCS) && !defined(NO_TAGS)
 tags: ${SRCS}
 .if ${CTAGS:T} == "gtags"
 	@cd ${.CURDIR} && ${CTAGS} ${GTAGSFLAGS} ${.OBJDIR}
 .if defined(HTML)
 	@cd ${.CURDIR} && htags ${HTAGSFLAGS} -d ${.OBJDIR} ${.OBJDIR}
 .endif
 .else
 	@${CTAGS} ${CTAGSFLAGS} -f /dev/stdout \
 	    ${.ALLSRC:N*.h} | sed "s;${.CURDIR}/;;" > ${.TARGET}
 .endif
 .endif
 
 .if !empty(.MAKE.MODE:Mmeta) && empty(.MAKE.MODE:Mnofilemon)
 _meta_filemon=	1
 .endif
 # By default META_MODE is disabled in bmake if there is no OBJDIR
 # unless .MAKE.MODE contains "curdirOk=[^0nNfF]"
 .if defined(_meta_filemon) && ${.OBJDIR} == ${.CURDIR} && \
     (empty(.MAKE.MODE:tl:Mcurdirok=*) || \
     !empty(.MAKE.MODE:tl:Mcurdirok=[0NnFf]*))
 .undef _meta_filemon
 .endif
 
 # Skip reading .depend when not needed to speed up tree-walks and simple
 # lookups.  See _SKIP_BUILD logic in bsd.init.mk for more details.
 # Also skip generating or including .depend.* files if in meta+filemon mode
 # since it will track dependencies itself.  OBJS_DEPEND_GUESS is still used
 # for _meta_filemon but not for _SKIP_DEPEND.
-.if defined(_SKIP_BUILD)
+.if !defined(NO_SKIP_DEPEND) && defined(_SKIP_BUILD)
 _SKIP_DEPEND=	1
 .endif
 .if ${MK_DIRDEPS_BUILD} == "no"
 .if defined(_SKIP_DEPEND) || defined(_meta_filemon)
 .MAKE.DEPENDFILE=	/dev/null
 .endif
 .endif
 
 .if defined(SRCS)
 CLEANFILES?=
 
 .for _S in ${SRCS:N*.[dhly]}
 OBJS_DEPEND_GUESS.${_S:R}.o+=	${_S}
 .endfor
 
 # Lexical analyzers
 .for _LSRC in ${SRCS:M*.l:N*/*}
 .for _LC in ${_LSRC:R}.c
 ${_LC}: ${_LSRC}
 	${LEX} ${LFLAGS} -o${.TARGET} ${.ALLSRC}
 OBJS_DEPEND_GUESS.${_LC:R}.o+=	${_LC}
 SRCS:=	${SRCS:S/${_LSRC}/${_LC}/}
 CLEANFILES+= ${_LC}
 .endfor
 .endfor
 
 # Yacc grammars
 .for _YSRC in ${SRCS:M*.y:N*/*}
 .for _YC in ${_YSRC:R}.c
 SRCS:=	${SRCS:S/${_YSRC}/${_YC}/}
 CLEANFILES+= ${_YC}
 .if !empty(YFLAGS:M-d) && !empty(SRCS:My.tab.h)
 .ORDER: ${_YC} y.tab.h
 y.tab.h: .NOMETA
 ${_YC} y.tab.h: ${_YSRC}
 	${YACC} ${YFLAGS} ${.ALLSRC}
 	cp y.tab.c ${_YC}
 CLEANFILES+= y.tab.c y.tab.h
 .elif !empty(YFLAGS:M-d)
 .for _YH in ${_YC:R}.h
 .ORDER: ${_YC} ${_YH}
 ${_YH}: .NOMETA
 ${_YC} ${_YH}: ${_YSRC}
 	${YACC} ${YFLAGS} -o ${_YC} ${.ALLSRC}
 SRCS+=	${_YH}
 CLEANFILES+= ${_YH}
 .endfor
 .else
 ${_YC}: ${_YSRC}
 	${YACC} ${YFLAGS} -o ${_YC} ${.ALLSRC}
 .endif
 OBJS_DEPEND_GUESS.${_YC:R}.o+=	${_YC}
 .endfor
 .endfor
 
 # DTrace probe definitions
 .if ${SRCS:M*.d}
 CFLAGS+=	-I${.OBJDIR}
 .endif
 .for _DSRC in ${SRCS:M*.d:N*/*}
 .for _D in ${_DSRC:R}
 SRCS+=	${_D}.h
 ${_D}.h: ${_DSRC}
 	${DTRACE} ${DTRACEFLAGS} -h -s ${.ALLSRC}
 SRCS:=	${SRCS:S/^${_DSRC}$//}
 OBJS+=	${_D}.o
 CLEANFILES+= ${_D}.h ${_D}.o
 ${_D}.o: ${_DSRC} ${OBJS:S/^${_D}.o$//}
 	@rm -f ${.TARGET}
 	${DTRACE} ${DTRACEFLAGS} -G -o ${.TARGET} -s ${.ALLSRC:N*.h}
 .if defined(LIB)
 CLEANFILES+= ${_D}.pico ${_D}.po
 ${_D}.pico: ${_DSRC} ${SOBJS:S/^${_D}.pico$//}
 	@rm -f ${.TARGET}
 	${DTRACE} ${DTRACEFLAGS} -G -o ${.TARGET} -s ${.ALLSRC:N*.h}
 ${_D}.po: ${_DSRC} ${POBJS:S/^${_D}.po$//}
 	@rm -f ${.TARGET}
 	${DTRACE} ${DTRACEFLAGS} -G -o ${.TARGET} -s ${.ALLSRC:N*.h}
 .endif
 .endfor
 .endfor
 
 
 .if ${MAKE_VERSION} < 20160220
 DEPEND_MP?=	-MP
 .endif
 # Handle OBJS=../somefile.o hacks.  Just replace '/' rather than use :T to
 # avoid collisions.
 DEPEND_FILTER=	C,/,_,g
 DEPENDSRCS=	${SRCS:M*.[cSC]} ${SRCS:M*.cxx} ${SRCS:M*.cpp} ${SRCS:M*.cc}
 .if !empty(DEPENDSRCS)
 DEPENDOBJS+=	${DEPENDSRCS:R:S,$,.o,}
 .endif
 DEPENDFILES_OBJS=	${DEPENDOBJS:O:u:${DEPEND_FILTER}:C/^/${DEPENDFILE}./}
 .if defined(_SKIP_DEPEND)
 # Don't bother statting any .meta files for .depend*
 ${DEPENDOBJS}:	.NOMETA
 ${DEPENDFILE}:	.NOMETA
 # Unset these to avoid looping/statting on them later.
 .undef DEPENDSRCS
 .undef DEPENDOBJS
 .undef DEPENDFILES_OBJS
 .endif	# defined(_SKIP_DEPEND)
 DEPEND_CFLAGS+=	-MD ${DEPEND_MP} -MF${DEPENDFILE}.${.TARGET:${DEPEND_FILTER}}
 DEPEND_CFLAGS+=	-MT${.TARGET}
 .if !defined(_meta_filemon)
 .if !empty(DEPEND_CFLAGS)
 # Only add in DEPEND_CFLAGS for CFLAGS on files we expect from DEPENDOBJS
 # as those are the only ones we will include.
 DEPEND_CFLAGS_CONDITION= "${DEPENDOBJS:${DEPEND_FILTER}:M${.TARGET:${DEPEND_FILTER}}}" != ""
 CFLAGS+=	${${DEPEND_CFLAGS_CONDITION}:?${DEPEND_CFLAGS}:}
 .endif
 .for __depend_obj in ${DEPENDFILES_OBJS}
 .if ${MAKE_VERSION} < 20160220
 .sinclude "${.OBJDIR}/${__depend_obj}"
 .else
 .dinclude "${.OBJDIR}/${__depend_obj}"
 .endif
 .endfor
 .endif	# !defined(_meta_filemon)
 .endif	# defined(SRCS)
 
 .if ${MK_DIRDEPS_BUILD} == "yes" && ${.MAKE.DEPENDFILE} != "/dev/null"
 # Prevent meta.autodep.mk from tracking "local dependencies".
 .depend:
 .include <meta.autodep.mk>
 # If using filemon then _EXTRADEPEND is skipped since it is not needed.
 .if defined(_meta_filemon)
 # this depend: bypasses that below
 # the dependency helps when bootstrapping
 depend: beforedepend ${DPSRCS} ${SRCS} afterdepend
 beforedepend:
 afterdepend: beforedepend
 .endif
 .endif
 
 # Guess some dependencies for when no ${DEPENDFILE}.OBJ is generated yet.
 # For meta+filemon the .meta file is checked for since it is the dependency
 # file used.
 .for __obj in ${DEPENDOBJS:O:u}
 # If the obj has any '/', then replace with '_'.  For meta files, this is
 # mimicing what bmake's meta_name() does and adding in the full path
 # as well to ensure that the expected meta file is read.
 .if ${__obj:M*/*}
 _meta_obj=	${.OBJDIR:C,/,_,g}_${__obj:C,/,_,g}.meta
 .else
 _meta_obj=	${__obj}.meta
 .endif
 _dep_obj=	${DEPENDFILE}.${__obj:${DEPEND_FILTER}}
 .if defined(_meta_filemon)
 _depfile=	${.OBJDIR}/${_meta_obj}
 .else
 _depfile=	${.OBJDIR}/${_dep_obj}
 .endif
 .if !exists(${_depfile})
 ${__obj}: ${OBJS_DEPEND_GUESS}
 ${__obj}: ${OBJS_DEPEND_GUESS.${__obj}}
 .elif defined(_meta_filemon)
 # For meta mode we still need to know which file to depend on to avoid
 # ambiguous suffix transformation rules from .PATH.  Meta mode does not
 # use .depend files.  We really only need source files, not headers since
 # they are typically in SRCS/beforebuild already.  For target-specific
 # guesses do include headers though since they may not be in SRCS.
 ${__obj}: ${OBJS_DEPEND_GUESS:N*.h}
 ${__obj}: ${OBJS_DEPEND_GUESS.${__obj}}
 .endif	# !exists(${_depfile})
 .endfor
 
 # Always run 'make depend' to generate dependencies early and to avoid the
 # need for manually running it.  The dirdeps build should only do this in
 # sub-makes though since MAKELEVEL0 is for dirdeps calculations.
 .if ${MK_DIRDEPS_BUILD} == "no" || ${.MAKE.LEVEL} > 0
 beforebuild: depend
 .endif
 
 .if !target(depend)
 .if defined(SRCS)
 depend: beforedepend ${DEPENDFILE} afterdepend
 
 # Tell bmake not to look for generated files via .PATH
 .NOPATH: ${DEPENDFILE} ${DEPENDFILES_OBJS}
 
 DPSRCS+= ${SRCS}
 # A .depend file will only be generated if there are commands in
 # beforedepend/_EXTRADEPEND/afterdepend  The _EXTRADEPEND target is
 # ignored if using meta+filemon since it handles all dependencies.  The other
 # targets are kept as they be used for generating something.  The target is
 # kept to allow 'make depend' to generate files.
 ${DEPENDFILE}: ${DPSRCS}
 .if !defined(_SKIP_DEPEND)
 .if exists(${.OBJDIR}/${DEPENDFILE}) || \
     ((commands(beforedepend) || \
     (!defined(_meta_filemon) && commands(_EXTRADEPEND)) || \
     commands(afterdepend)) && !empty(.MAKE.MODE:Mmeta))
 	rm -f ${DEPENDFILE}
 .endif
 .endif
 .if !defined(_meta_filemon) && target(_EXTRADEPEND)
 _EXTRADEPEND: .USE
 ${DEPENDFILE}: _EXTRADEPEND
 .endif
 
 .ORDER: ${DEPENDFILE} afterdepend
 .else
 depend: beforedepend afterdepend
 .endif
 .if !target(beforedepend)
 beforedepend:
 .else
 .ORDER: beforedepend ${DEPENDFILE}
 .ORDER: beforedepend afterdepend
 .endif
 .if !target(afterdepend)
 afterdepend:
 .endif
 .endif
 
 .if defined(SRCS)
 .if ${CTAGS:T} == "gtags"
 CLEANDEPENDFILES+=	GPATH GRTAGS GSYMS GTAGS
 .if defined(HTML)
 CLEANDEPENDDIRS+=	HTML
 .endif
 .else
 CLEANDEPENDFILES+=	tags
 .endif
 .endif
 .if !target(cleandepend)
 cleandepend:
 .if !empty(CLEANDEPENDFILES)
 	rm -f ${CLEANDEPENDFILES}
 .endif
 .if !empty(CLEANDEPENDDIRS)
 	rm -rf ${CLEANDEPENDDIRS}
 .endif
 .endif
 .ORDER: cleandepend all
 .ORDER: cleandepend depend
 
 .if !target(checkdpadd) && (defined(DPADD) || defined(LDADD))
 _LDADD_FROM_DPADD=	${DPADD:R:T:C;^lib(.*)$;-l\1;g}
 # Ignore -Wl,--start-group/-Wl,--end-group as it might be required in the
 # LDADD list due to unresolved symbols
 _LDADD_CANONICALIZED=	${LDADD:N:R:T:C;^lib(.*)$;-l\1;g:N-Wl,--[es]*-group}
 checkdpadd:
 .if ${_LDADD_FROM_DPADD} != ${_LDADD_CANONICALIZED}
 	@echo ${.CURDIR}
 	@echo "DPADD -> ${_LDADD_FROM_DPADD}"
 	@echo "LDADD -> ${_LDADD_CANONICALIZED}"
 .endif
 .endif
Index: head/sys/conf/kern.post.mk
===================================================================
--- head/sys/conf/kern.post.mk	(revision 321484)
+++ head/sys/conf/kern.post.mk	(revision 321485)
@@ -1,415 +1,415 @@
 # $FreeBSD$
 
 # Part of a unified Makefile for building kernels.  This part includes all
 # the definitions that need to be after all the % directives except %RULES
 # and ones that act like they are part of %RULES.
 #
 # Most make variables should not be defined in this file.  Instead, they
 # should be defined in the kern.pre.mk so that port makefiles can
 # override or augment them.
 
 # In case the config had a makeoptions DESTDIR...
 .if defined(DESTDIR)
 MKMODULESENV+=	DESTDIR="${DESTDIR}"
 .endif
 SYSDIR?= ${S:C;^[^/];${.CURDIR}/&;:tA}
 MKMODULESENV+=	KERNBUILDDIR="${.CURDIR}" SYSDIR="${SYSDIR}"
 
 .if defined(CONF_CFLAGS)
 MKMODULESENV+=	CONF_CFLAGS="${CONF_CFLAGS}"
 .endif
 
 .if defined(WITH_CTF)
 MKMODULESENV+=	WITH_CTF="${WITH_CTF}"
 .endif
 
 .if defined(WITH_EXTRA_TCP_STACKS)
 MKMODULESENV+=	WITH_EXTRA_TCP_STACKS="${WITH_EXTRA_TCP_STACKS}"
 .endif
 
 # Allow overriding the kernel debug directory, so kernel and user debug may be
 # installed in different directories. Setting it to "" restores the historical
 # behavior of installing debug files in the kernel directory.
 KERN_DEBUGDIR?=	${DEBUGDIR}
 
 .MAIN: all
 
 .for target in all clean cleandepend cleandir clobber depend install \
     ${_obj} reinstall tags
 ${target}: kernel-${target}
 .if !defined(MODULES_WITH_WORLD) && !defined(NO_MODULES) && exists($S/modules)
 ${target}: modules-${target}
 modules-${target}:
 	cd $S/modules; ${MKMODULESENV} ${MAKE} \
 	    ${target:S/^reinstall$/install/:S/^clobber$/cleandir/}
 .endif
 .endfor
 
 # Handle ports (as defined by the user) that build kernel modules
 .if !defined(NO_MODULES) && defined(PORTS_MODULES)
 #
 # The ports tree needs some environment variables defined to match the new kernel
 #
 # Ports search for some dependencies in PATH, so add the location of the installed files
 LOCALBASE?=	/usr/local
 # SRC_BASE is how the ports tree refers to the location of the base source files
 .if !defined(SRC_BASE)
 SRC_BASE=	${SYSDIR:H:tA}
 .endif
 # OSVERSION is used by some ports to determine build options
 .if !defined(OSRELDATE)
 # Definition copied from src/Makefile.inc1
 OSRELDATE!=	awk '/^\#define[[:space:]]*__FreeBSD_version/ { print $$3 }' \
 		    ${MAKEOBJDIRPREFIX}${SRC_BASE}/include/osreldate.h
 .endif
 # Keep the related ports builds in the obj directory so that they are only rebuilt once per kernel build
 WRKDIRPREFIX?=	${.OBJDIR}
 PORTSMODULESENV=\
 	env \
 	-u CC \
 	-u CXX \
 	-u CPP \
 	PATH=${PATH}:${LOCALBASE}/bin:${LOCALBASE}/sbin \
 	SRC_BASE=${SRC_BASE} \
 	OSVERSION=${OSRELDATE} \
 	WRKDIRPREFIX=${WRKDIRPREFIX}
 
 # The WRKDIR needs to be cleaned before building, and trying to change the target
 # with a :C pattern below results in install -> instclean
 all:
 .for __i in ${PORTS_MODULES}
 	@${ECHO} "===> Ports module ${__i} (all)"
 	cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B clean build
 .endfor
 
 .for __target in install reinstall clean
 ${__target}: ports-${__target}
 ports-${__target}:
 .for __i in ${PORTS_MODULES}
 	@${ECHO} "===> Ports module ${__i} (${__target})"
 	cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B ${__target:C/install/deinstall reinstall/:C/reinstall/deinstall reinstall/}
 .endfor
 .endfor
 .endif
 
 .ORDER: kernel-install modules-install
 
 beforebuild: .PHONY
 kernel-all: beforebuild .WAIT ${KERNEL_KO} ${KERNEL_EXTRA}
 
 kernel-cleandir: kernel-clean kernel-cleandepend
 
 kernel-clobber:
 	find . -maxdepth 1 ! -type d ! -name version -delete
 
 kernel-obj:
 
 .if !defined(MODULES_WITH_WORLD) && !defined(NO_MODULES) && exists($S/modules)
 modules: modules-all
 
 .if !defined(NO_MODULES_OBJ)
 modules-all modules-depend: modules-obj
 .endif
 .endif
 
 .if !defined(DEBUG)
 FULLKERNEL=	${KERNEL_KO}
 .else
 FULLKERNEL=	${KERNEL_KO}.full
 ${KERNEL_KO}: ${FULLKERNEL} ${KERNEL_KO}.debug
 	${OBJCOPY} --strip-debug --add-gnu-debuglink=${KERNEL_KO}.debug \
 	    ${FULLKERNEL} ${.TARGET}
 ${KERNEL_KO}.debug: ${FULLKERNEL}
 	${OBJCOPY} --only-keep-debug ${FULLKERNEL} ${.TARGET}
 install.debug reinstall.debug: gdbinit
 	cd ${.CURDIR}; ${MAKE} ${.TARGET:R}
 
 # Install gdbinit files for kernel debugging.
 gdbinit:
 	grep -v '# XXX' ${S}/../tools/debugscripts/dot.gdbinit | \
 	    sed "s:MODPATH:${.OBJDIR}/modules:" > .gdbinit
 	cp ${S}/../tools/debugscripts/gdbinit.kernel ${.CURDIR}
 .if exists(${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH})
 	cp ${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH} \
 	    ${.CURDIR}/gdbinit.machine
 .endif
 .endif
 
 ${FULLKERNEL}: ${SYSTEM_DEP} vers.o
 	@rm -f ${.TARGET}
 	@echo linking ${.TARGET}
 	${SYSTEM_LD}
 .if !empty(MD_ROOT_SIZE_CONFIGURED) && defined(MFS_IMAGE)
 	@sh ${S}/tools/embed_mfs.sh ${.TARGET} ${MFS_IMAGE}
 .endif
 .if ${MK_CTF} != "no"
 	@echo ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ...
 	@${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o
 .endif
 .if !defined(DEBUG)
 	${OBJCOPY} --strip-debug ${.TARGET}
 .endif
 	${SYSTEM_LD_TAIL}
 
 OBJS_DEPEND_GUESS+=	assym.s vnode_if.h ${BEFORE_DEPEND:M*.h} \
 			${MFILES:T:S/.m$/.h/}
 LNFILES=	${CFILES:T:S/.c$/.ln/}
 
 .for mfile in ${MFILES}
 # XXX the low quality .m.o rules gnerated by config are normally used
 # instead of the .m.c rules here.
 ${mfile:T:S/.m$/.c/}: ${mfile}
 	${AWK} -f $S/tools/makeobjops.awk ${mfile} -c
 ${mfile:T:S/.m$/.h/}: ${mfile}
 	${AWK} -f $S/tools/makeobjops.awk ${mfile} -h
 .endfor
 
 kernel-clean:
 	rm -f *.o *.so *.pico *.ko *.s eddep errs \
 	    ${FULLKERNEL} ${KERNEL_KO} ${KERNEL_KO}.debug \
 	    linterrs tags vers.c \
 	    vnode_if.c vnode_if.h vnode_if_newproto.h vnode_if_typedef.h \
 	    ${MFILES:T:S/.m$/.c/} ${MFILES:T:S/.m$/.h/} \
 	    ${CLEAN}
 
 lint: ${LNFILES}
 	${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC} 2>&1 | \
 	    tee -a linterrs
 
 # This is a hack.  BFD "optimizes" away dynamic mode if there are no
 # dynamic references.  We could probably do a '-Bforcedynamic' mode like
 # in the a.out ld.  For now, this works.
 HACK_EXTRA_FLAGS?= -shared
 hack.pico: Makefile
 	:> hack.c
 	${CC} ${HACK_EXTRA_FLAGS} -nostdlib hack.c -o hack.pico
 	rm -f hack.c
 
 assym.s: $S/kern/genassym.sh genassym.o
 	NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genassym.sh genassym.o > ${.TARGET}
 
 genassym.o: $S/$M/$M/genassym.c
 	${CC} -c ${CFLAGS:N-flto:N-fno-common} $S/$M/$M/genassym.c
 
 ${SYSTEM_OBJS} genassym.o vers.o: opt_global.h
 
 .if !empty(.MAKE.MODE:Unormal:Mmeta) && empty(.MAKE.MODE:Unormal:Mnofilemon)
 _meta_filemon=	1
 .endif
 # Skip reading .depend when not needed to speed up tree-walks and simple
 # lookups.  For install, only do this if no other targets are specified.
 # Also skip generating or including .depend.* files if in meta+filemon mode
 # since it will track dependencies itself.  OBJS_DEPEND_GUESS is still used
 # for _meta_filemon but not for _SKIP_DEPEND.
-.if !empty(.MAKEFLAGS:M-V${_V_READ_DEPEND}) || make(*obj) || \
+.if !defined(NO_SKIP_DEPEND) && (make(*obj) || \
     ${.TARGETS:M*clean*} == ${.TARGETS} || \
-    ${.TARGETS:M*install*} == ${.TARGETS}
+    ${.TARGETS:M*install*} == ${.TARGETS})
 _SKIP_DEPEND=	1
 .endif
 .if defined(_SKIP_DEPEND) || defined(_meta_filemon)
 .MAKE.DEPENDFILE=	/dev/null
 .endif
 
 kernel-depend: .depend
 SRCS=	assym.s vnode_if.h ${BEFORE_DEPEND} ${CFILES} \
 	${SYSTEM_CFILES} ${GEN_CFILES} ${SFILES} \
 	${MFILES:T:S/.m$/.h/}
 DEPENDFILES=	.depend .depend.*
 DEPENDOBJS+=	${SYSTEM_OBJS} genassym.o
 DEPENDFILES_OBJS=	${DEPENDOBJS:O:u:C/^/.depend./}
 .if ${MAKE_VERSION} < 20160220
 DEPEND_MP?=	-MP
 .endif
 .if defined(_SKIP_DEPEND)
 # Don't bother reading any .meta files
 ${DEPENDOBJS}:	.NOMETA
 .depend:	.NOMETA
 # Unset these to avoid looping/statting on them later.
 .undef DEPENDSRCS
 .undef DEPENDOBJS
 .undef DEPENDFILES_OBJS
 .endif	# defined(_SKIP_DEPEND)
 DEPEND_CFLAGS+=	-MD ${DEPEND_MP} -MF.depend.${.TARGET}
 DEPEND_CFLAGS+=	-MT${.TARGET}
 .if !defined(_meta_filemon)
 .if !empty(DEPEND_CFLAGS)
 # Only add in DEPEND_CFLAGS for CFLAGS on files we expect from DEPENDOBJS
 # as those are the only ones we will include.
 DEPEND_CFLAGS_CONDITION= "${DEPENDOBJS:M${.TARGET}}" != ""
 CFLAGS+=	${${DEPEND_CFLAGS_CONDITION}:?${DEPEND_CFLAGS}:}
 .endif
 .for __depend_obj in ${DEPENDFILES_OBJS}
 .if ${MAKE_VERSION} < 20160220
 .sinclude "${.OBJDIR}/${__depend_obj}"
 .else
 .dinclude "${.OBJDIR}/${__depend_obj}"
 .endif
 .endfor
 .endif	# !defined(_meta_filemon)
 
 # Always run 'make depend' to generate dependencies early and to avoid the
 # need for manually running it.  For the kernel this is mostly a NOP since
 # all dependencies are correctly added or accounted for.  This is mostly to
 # ensure downstream uses of kernel-depend are handled.
 beforebuild: kernel-depend
 
 # Guess some dependencies for when no ${DEPENDFILE}.OBJ is generated yet.
 # For meta+filemon the .meta file is checked for since it is the dependency
 # file used.
 .for __obj in ${DEPENDOBJS:O:u}
 .if defined(_meta_filemon)
 _depfile=	${.OBJDIR}/${__obj}.meta
 .else
 _depfile=	${.OBJDIR}/.depend.${__obj}
 .endif
 .if !exists(${_depfile})
 .if ${SYSTEM_OBJS:M${__obj}}
 ${__obj}: ${OBJS_DEPEND_GUESS}
 .endif
 ${__obj}: ${OBJS_DEPEND_GUESS.${__obj}}
 .elif defined(_meta_filemon)
 # For meta mode we still need to know which file to depend on to avoid
 # ambiguous suffix transformation rules from .PATH.  Meta mode does not
 # use .depend files.  We really only need source files, not headers since
 # they are typically in SRCS/beforebuild already.  For target-specific
 # guesses do include headers though since they may not be in SRCS.
 .if ${SYSTEM_OBJS:M${__obj}}
 ${__obj}: ${OBJS_DEPEND_GUESS:N*.h}
 .endif
 ${__obj}: ${OBJS_DEPEND_GUESS.${__obj}}
 .endif	# !exists(${_depfile})
 .endfor
 
 .NOPATH: .depend ${DEPENDFILES_OBJS}
 
 .depend: .PRECIOUS ${SRCS}
 
 _ILINKS= machine
 .if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64"
 _ILINKS+= ${MACHINE_CPUARCH}
 .endif
 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
 _ILINKS+= x86
 .endif
 
 # Ensure that the link exists without depending on it when it exists.
 .for _link in ${_ILINKS}
 .if !exists(${.OBJDIR}/${_link})
 ${SRCS} ${CLEAN:M*.o}: ${_link}
 .endif
 .endfor
 
 ${_ILINKS}:
 	@case ${.TARGET} in \
 	machine) \
 		path=${S}/${MACHINE}/include ;; \
 	*) \
 		path=${S}/${.TARGET}/include ;; \
 	esac ; \
 	${ECHO} ${.TARGET} "->" $$path ; \
 	ln -fhs $$path ${.TARGET}
 
 # .depend needs include links so we remove them only together.
 kernel-cleandepend: .PHONY
 	rm -f ${DEPENDFILES} ${_ILINKS}
 
 kernel-tags:
 	@[ -f .depend ] || { echo "you must make depend first"; exit 1; }
 	sh $S/conf/systags.sh
 
 kernel-install: .PHONY
 	@if [ ! -f ${KERNEL_KO} ] ; then \
 		echo "You must build a kernel first." ; \
 		exit 1 ; \
 	fi
 .if exists(${DESTDIR}${KODIR})
 	-thiskernel=`sysctl -n kern.bootfile` ; \
 	if [ ! "`dirname "$$thiskernel"`" -ef ${DESTDIR}${KODIR} ] ; then \
 		chflags -R noschg ${DESTDIR}${KODIR} ; \
 		rm -rf ${DESTDIR}${KODIR} ; \
 		rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ; \
 	else \
 		if [ -d ${DESTDIR}${KODIR}.old ] ; then \
 			chflags -R noschg ${DESTDIR}${KODIR}.old ; \
 			rm -rf ${DESTDIR}${KODIR}.old ; \
 		fi ; \
 		mv ${DESTDIR}${KODIR} ${DESTDIR}${KODIR}.old ; \
 		if [ -n "${KERN_DEBUGDIR}" -a \
 		     -d ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ]; then \
 			rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \
 			mv ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \
 		fi ; \
 		sysctl kern.bootfile=${DESTDIR}${KODIR}.old/"`basename "$$thiskernel"`" ; \
 	fi
 .endif
 	mkdir -p ${DESTDIR}${KODIR}
 	${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/
 .if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no"
 	mkdir -p ${DESTDIR}${KERN_DEBUGDIR}${KODIR}
 	${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/
 .endif
 .if defined(KERNEL_EXTRA_INSTALL)
 	${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_EXTRA_INSTALL} ${DESTDIR}${KODIR}/
 .endif
 
 
 
 kernel-reinstall:
 	@-chflags -R noschg ${DESTDIR}${KODIR}
 	${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/
 .if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no"
 	${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/
 .endif
 
 config.o env.o hints.o vers.o vnode_if.o:
 	${NORMAL_C}
 	${NORMAL_CTFCONVERT}
 
 config.ln env.ln hints.ln vers.ln vnode_if.ln:
 	${NORMAL_LINT}
 
 .if ${MK_REPRODUCIBLE_BUILD} != "no"
 REPRO_FLAG="-r"
 .endif
 vers.c: $S/conf/newvers.sh $S/sys/param.h ${SYSTEM_DEP}
 	MAKE=${MAKE} sh $S/conf/newvers.sh ${REPRO_FLAG} ${KERN_IDENT}
 
 vnode_if.c: $S/tools/vnode_if.awk $S/kern/vnode_if.src
 	${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -c
 
 vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: $S/tools/vnode_if.awk \
     $S/kern/vnode_if.src
 vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h
 	${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -h
 vnode_if_newproto.h:
 	${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -p
 vnode_if_typedef.h:
 	${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -q
 
 .if ${MFS_IMAGE:Uno} != "no"
 .if empty(MD_ROOT_SIZE_CONFIGURED)
 # Generate an object file from the file system image to embed in the kernel
 # via linking. Make sure the contents are in the mfs section and rename the
 # start/end/size variables to __start_mfs, __stop_mfs, and mfs_size,
 # respectively.
 embedfs_${MFS_IMAGE:T:R}.o: ${MFS_IMAGE}
 	${OBJCOPY} --input-target binary \
 	    --output-target ${EMBEDFS_FORMAT.${MACHINE_ARCH}} \
 	    --binary-architecture ${EMBEDFS_ARCH.${MACHINE_ARCH}} \
 	    ${MFS_IMAGE} ${.TARGET}
 	${OBJCOPY} \
 	    --rename-section .data=mfs,contents,alloc,load,readonly,data \
 	    --redefine-sym \
 		_binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_size=__mfs_root_size \
 	    --redefine-sym \
 		_binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_start=mfs_root \
 	    --redefine-sym \
 		_binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_end=mfs_root_end \
 	    ${.TARGET}
 .endif
 .endif
 
 # XXX strictly, everything depends on Makefile because changes to ${PROF}
 # only appear there, but we don't handle that.
 
 .include "kern.mk"