Remove the old depend (mkdep) code and make FAST_DEPEND the one true way.

Reviewed by:	emaste, hselasky (partial), brooks (brief)
Discussed on:	arch@
Sponsored by:	EMC / Isilon Storage Division
Differential Revision:	https://reviews.freebsd.org/D5742

27 files changed, 42 insertions, 298 deletions

diff --git a/Makefile b/Makefile
index a72d5aa..4e4b6c4 100644
--- a/Makefile
+++ b/Makefile
@@ -124,7 +124,7 @@ TGTS=	all all-man buildenv buildenvvars buildkernel buildworld \
 	installworld kernel-toolchain libraries lint maninstall \
 	obj objlink rerelease showconfig tags toolchain update \
 	_worldtmp _legacy _bootstrap-tools _cleanobj _obj \
-	_build-tools _cross-tools _includes _libraries _depend \
+	_build-tools _cross-tools _includes _libraries \
 	build32 distribute32 install32 build32 distribute32 install32 \
 	builddtb xdev xdev-build xdev-install \
 	xdev-links native-xtools installconfig \
diff --git a/Makefile.inc1 b/Makefile.inc1
index ae90197..acf739c 100644
--- a/Makefile.inc1
+++ b/Makefile.inc1
@@ -7,10 +7,9 @@
 #	-DDB_FROM_SRC use the user/group databases in src/etc instead of
 #	    the system database when installing.
 #	-DNO_SHARE do not go into share subdir
-#	-DKERNFAST define NO_KERNEL{CONFIG,CLEAN,DEPEND,OBJ}
+#	-DKERNFAST define NO_KERNEL{CONFIG,CLEAN,OBJ}
 #	-DNO_KERNELCONFIG do not run config in ${MAKE} buildkernel
 #	-DNO_KERNELCLEAN do not run ${MAKE} clean in ${MAKE} buildkernel
-#	-DNO_KERNELDEPEND do not run ${MAKE} depend in ${MAKE} buildkernel
 #	-DNO_KERNELOBJ do not run ${MAKE} obj in ${MAKE} buildkernel
 #	-DNO_PORTSUPDATE do not update ports in ${MAKE} update
 #	-DNO_ROOT install without using root privilege
@@ -145,16 +144,6 @@ CLEANDIR=	clean cleandepend
 CLEANDIR=	cleandir
 .endif
 
-# FAST_DEPEND can skip depend tree-walks.
-.if ${MK_FAST_DEPEND} == "yes"
-NO_DEPEND=	t
-NO_KERNELDEPEND=t
-.endif
-# Ensure shell checks later have a value.
-.if defined(NO_DEPEND)
-NO_DEPEND=	t
-.endif
-
 LOCAL_TOOL_DIRS?=
 PACKAGEDIR?=	${DESTDIR}/${DISTDIR}
 
@@ -406,7 +395,6 @@ X${BINUTIL}?=	${${BINUTIL}}
 .endif
 .endfor
 CROSSENV+=	CC="${XCC} ${XCFLAGS}" CXX="${XCXX} ${XCFLAGS} ${XCXXFLAGS}" \
-		DEPFLAGS="${DEPFLAGS}" \
 		CPP="${XCPP} ${XCFLAGS}" \
 		AS="${XAS}" AR="${XAR}" LD="${XLD}" NM=${XNM} \
 		OBJDUMP=${XOBJDUMP} OBJCOPY="${XOBJCOPY}" \
@@ -438,10 +426,6 @@ XCFLAGS+=	-isystem ${WORLDTMP}/usr/include
 # Force using libc++ for external GCC.
 XCXXFLAGS+=	-isystem ${WORLDTMP}/usr/include/c++/v1 -std=c++11 \
 		-nostdinc++ -L${WORLDTMP}/../lib/libc++
-# XXX: DEPFLAGS is a workaround for not properly passing CXXFLAGS to sub-makes
-# due to CXX="${XCXX} ${XCXXFLAGS}".  bsd.dep.mk does use CXXFLAGS when
-# building C++ files so this can come out if passing CXXFLAGS down is fixed.
-DEPFLAGS+=	-I${WORLDTMP}/usr/include/c++/v1
 .else
 TARGET_ABI?=	unknown
 TARGET_TRIPLE?=	${TARGET_ARCH:C/amd64/x86_64/}-${TARGET_ABI}-freebsd11.0
@@ -635,16 +619,10 @@ _libraries:
 	${_+_}cd ${.CURDIR}; \
 	    ${WMAKE} -DNO_FSCHG MK_HTML=no -DNO_LINT MK_MAN=no \
 	    MK_PROFILE=no MK_TESTS=no MK_TESTS_SUPPORT=${MK_TESTS} libraries
-_depend:
-	@echo
-	@echo "--------------------------------------------------------------"
-	@echo ">>> stage 4.3: make dependencies"
-	@echo "--------------------------------------------------------------"
-	${_+_}cd ${.CURDIR}; ${WMAKE} depend
 everything:
 	@echo
 	@echo "--------------------------------------------------------------"
-	@echo ">>> stage 4.4: building everything"
+	@echo ">>> stage 4.3: building everything"
 	@echo "--------------------------------------------------------------"
 	${_+_}cd ${.CURDIR}; _PARALLEL_SUBDIR_OK=1 ${WMAKE} all
 
@@ -655,9 +633,6 @@ WMAKE_TGTS+=	_bootstrap-tools
 .endif
 WMAKE_TGTS+=	_cleanobj _obj _build-tools _cross-tools
 WMAKE_TGTS+=	_includes _libraries
-.if !defined(NO_DEPEND)
-WMAKE_TGTS+=	_depend
-.endif
 WMAKE_TGTS+=	everything
 .if defined(LIBCOMPAT) && empty(SUBDIR_OVERRIDE)
 WMAKE_TGTS+=	build${libcompat}
@@ -700,7 +675,7 @@ buildenv: .PHONY
 	@cd ${BUILDENV_DIR} && env ${WMAKEENV} BUILDENV=1 ${BUILDENV_SHELL} \
 	    || true
 
-TOOLCHAIN_TGTS=	${WMAKE_TGTS:N_depend:Neverything:Nbuild${libcompat}}
+TOOLCHAIN_TGTS=	${WMAKE_TGTS:Neverything:Nbuild${libcompat}}
 toolchain: ${TOOLCHAIN_TGTS}
 kernel-toolchain: ${TOOLCHAIN_TGTS:N_includes:N_libraries}
 
@@ -997,7 +972,6 @@ distrib-dirs distribution: .MAKE .PHONY
 .if defined(KERNFAST)
 NO_KERNELCLEAN=	t
 NO_KERNELCONFIG=	t
-NO_KERNELDEPEND=	t
 NO_KERNELOBJ=		t
 # Shortcut for KERNCONF=Blah -DKERNFAST is now KERNFAST=Blah
 .if !defined(KERNCONF) && ${KERNFAST} != "1"
@@ -1079,16 +1053,9 @@ buildkernel: .MAKE .PHONY
 	@echo ">>> stage 2.3: build tools"
 	@echo "--------------------------------------------------------------"
 	${_+_}cd ${.CURDIR}; ${KTMAKE} kernel-tools
-.if !defined(NO_KERNELDEPEND)
-	@echo
-	@echo "--------------------------------------------------------------"
-	@echo ">>> stage 3.1: making dependencies"
-	@echo "--------------------------------------------------------------"
-	${_+_}cd ${KRNLOBJDIR}/${_kernel}; ${KMAKE} depend -DNO_MODULES_OBJ
-.endif
 	@echo
 	@echo "--------------------------------------------------------------"
-	@echo ">>> stage 3.2: building everything"
+	@echo ">>> stage 3.1: building everything"
 	@echo "--------------------------------------------------------------"
 	${_+_}cd ${KRNLOBJDIR}/${_kernel}; ${KMAKE} all -DNO_MODULES_OBJ
 	@echo "--------------------------------------------------------------"
@@ -1287,11 +1254,10 @@ legacy:
 	false
 .endif
 .for _tool in tools/build ${_elftoolchain_libs}
-	${_+_}@${ECHODIR} "===> ${_tool} (obj,includes,depend,all,install)"; \
+	${_+_}@${ECHODIR} "===> ${_tool} (obj,includes,all,install)"; \
 	    cd ${.CURDIR}/${_tool}; \
 	    ${MAKE} DIRPRFX=${_tool}/ obj; \
 	    ${MAKE} DIRPRFX=${_tool}/ DESTDIR=${MAKEOBJDIRPREFIX}/legacy includes; \
-	    if [ -z "${NO_DEPEND}" ]; then ${MAKE} DIRPRFX=${_tool}/ depend; fi; \
 	    ${MAKE} DIRPRFX=${_tool}/ all; \
 	    ${MAKE} DIRPRFX=${_tool}/ DESTDIR=${MAKEOBJDIRPREFIX}/legacy install
 .endfor
@@ -1447,10 +1413,9 @@ bootstrap-tools: .PHONY
     ${_vtfontcvt} \
     usr.bin/localedef
 ${_bt}-${_tool}: .PHONY .MAKE
-	${_+_}@${ECHODIR} "===> ${_tool} (obj,depend,all,install)"; \
+	${_+_}@${ECHODIR} "===> ${_tool} (obj,all,install)"; \
 		cd ${.CURDIR}/${_tool}; \
 		${MAKE} DIRPRFX=${_tool}/ obj; \
-		if [ -z "${NO_DEPEND}" ]; then ${MAKE} DIRPRFX=${_tool}/ depend; fi; \
 		${MAKE} DIRPRFX=${_tool}/ all; \
 		${MAKE} DIRPRFX=${_tool}/ DESTDIR=${MAKEOBJDIRPREFIX}/legacy install
 
@@ -1496,10 +1461,9 @@ build-tools: build-tools_${_tool}
 .for _tool in \
     ${_gcc_tools}
 build-tools_${_tool}: .PHONY
-	${_+_}@${ECHODIR} "===> ${_tool} (obj,depend,all)"; \
+	${_+_}@${ECHODIR} "===> ${_tool} (obj,all)"; \
 		cd ${.CURDIR}/${_tool}; \
 		${MAKE} DIRPRFX=${_tool}/ obj; \
-		if [ -z "${NO_DEPEND}" ]; then ${MAKE} DIRPRFX=${_tool}/ depend; fi; \
 		${MAKE} DIRPRFX=${_tool}/ all
 build-tools: build-tools_${_tool}
 .endfor
@@ -1580,10 +1544,9 @@ cross-tools: .MAKE .PHONY
     ${_btxld} \
     ${_crunchide} \
     ${_usb_tools}
-	${_+_}@${ECHODIR} "===> ${_tool} (obj,depend,all,install)"; \
+	${_+_}@${ECHODIR} "===> ${_tool} (obj,all,install)"; \
 		cd ${.CURDIR}/${_tool}; \
 		${MAKE} DIRPRFX=${_tool}/ obj; \
-		if [ -z "${NO_DEPEND}" ]; then ${MAKE} DIRPRFX=${_tool}/ depend; fi; \
 		${MAKE} DIRPRFX=${_tool}/ all; \
 		${MAKE} DIRPRFX=${_tool}/ DESTDIR=${MAKEOBJDIRPREFIX} install
 .endfor
@@ -1612,10 +1575,9 @@ NXBMAKE=	${NXBENV} ${MAKE} \
 native-xtools: .PHONY
 .if ${MK_GCC_BOOTSTRAP} != "no"
 	mkdir -p ${OBJTREE}/gperf_for_gcc/usr/bin
-	${_+_}@${ECHODIR} "===> ${_gperf} (obj,depend,all,install)"; \
+	${_+_}@${ECHODIR} "===> ${_gperf} (obj,all,install)"; \
 	cd ${.CURDIR}/${_gperf}; \
 	${NXBMAKE} DIRPRFX=${_gperf}/ obj; \
-	if [ -z "${NO_DEPEND}" ]; then ${NXBMAKE} DIRPRFX=${_gperf}/ depend; fi; \
 	${NXBMAKE} DIRPRFX=${_gperf}/ all; \
 	${NXBMAKE} DIRPRFX=${_gperf}/ DESTDIR=${OBJTREE}/gperf_for_gcc install
 .endif
@@ -1687,10 +1649,9 @@ native-xtools: .PHONY
     usr.bin/xz \
     usr.bin/yacc \
     usr.sbin/chown
-	${_+_}@${ECHODIR} "===> ${_tool} (obj,depend,all,install)"; \
+	${_+_}@${ECHODIR} "===> ${_tool} (obj,all,install)"; \
 		cd ${.CURDIR}/${_tool}; \
 		${NXBMAKE} DIRPRFX=${_tool}/ obj; \
-		if [ -z "${NO_DEPEND}" ]; then ${NXBMAKE} DIRPRFX=${_tool}/ depend; fi; \
 		${NXBMAKE} DIRPRFX=${_tool}/ all; \
 		${NXBMAKE} DIRPRFX=${_tool}/ DESTDIR=${NXBDESTDIR} install
 .endfor
@@ -1926,10 +1887,9 @@ gnu/lib/libdialog__L: lib/msun__L lib/ncurses/ncursesw__L
 .for _lib in ${_prereq_libs}
 ${_lib}__PL: .PHONY .MAKE
 .if exists(${.CURDIR}/${_lib})
-	${_+_}@${ECHODIR} "===> ${_lib} (obj,depend,all,install)"; \
+	${_+_}@${ECHODIR} "===> ${_lib} (obj,all,install)"; \
 		cd ${.CURDIR}/${_lib}; \
 		${MAKE} MK_TESTS=no DIRPRFX=${_lib}/ obj; \
-		if [ -z "${NO_DEPEND}" ]; then ${MAKE} MK_TESTS=no DIRPRFX=${_lib}/ depend; fi; \
 		${MAKE} MK_TESTS=no MK_PROFILE=no -DNO_PIC \
 		    DIRPRFX=${_lib}/ all; \
 		${MAKE} MK_TESTS=no MK_PROFILE=no -DNO_PIC \
@@ -1940,10 +1900,9 @@ ${_lib}__PL: .PHONY .MAKE
 .for _lib in ${_startup_libs} ${_prebuild_libs:Nlib/libpam} ${_generic_libs}
 ${_lib}__L: .PHONY .MAKE
 .if exists(${.CURDIR}/${_lib})
-	${_+_}@${ECHODIR} "===> ${_lib} (obj,depend,all,install)"; \
+	${_+_}@${ECHODIR} "===> ${_lib} (obj,all,install)"; \
 		cd ${.CURDIR}/${_lib}; \
 		${MAKE} MK_TESTS=no DIRPRFX=${_lib}/ obj; \
-		if [ -z "${NO_DEPEND}" ]; then ${MAKE} MK_TESTS=no DIRPRFX=${_lib}/ depend; fi; \
 		${MAKE} MK_TESTS=no DIRPRFX=${_lib}/ all; \
 		${MAKE} MK_TESTS=no DIRPRFX=${_lib}/ install
 .endif
@@ -1953,10 +1912,9 @@ ${_lib}__L: .PHONY .MAKE
 # static PAM library, and dynamic PAM library before dynamic PAM
 # modules.
 lib/libpam__L: .PHONY .MAKE
-	${_+_}@${ECHODIR} "===> lib/libpam (obj,depend,all,install)"; \
+	${_+_}@${ECHODIR} "===> lib/libpam (obj,all,install)"; \
 		cd ${.CURDIR}/lib/libpam; \
 		${MAKE} MK_TESTS=no DIRPRFX=lib/libpam/ obj; \
-		if [ -z "${NO_DEPEND}" ]; then ${MAKE} MK_TESTS=no DIRPRFX=lib/libpam/ depend; fi; \
 		${MAKE} MK_TESTS=no DIRPRFX=lib/libpam/ \
 		    -D_NO_LIBPAM_SO_YET all; \
 		${MAKE} MK_TESTS=no DIRPRFX=lib/libpam/ \
@@ -2251,10 +2209,9 @@ _xb-bootstrap-tools: .PHONY
 .for _tool in \
     ${_clang_tblgen} \
     ${_gperf}
-	${_+_}@${ECHODIR} "===> ${_tool} (obj,depend,all,install)"; \
+	${_+_}@${ECHODIR} "===> ${_tool} (obj,all,install)"; \
 	cd ${.CURDIR}/${_tool}; \
 	${CDMAKE} DIRPRFX=${_tool}/ obj; \
-	if [ -z "${NO_DEPEND}" ]; then ${CDMAKE} DIRPRFX=${_tool}/ depend; fi; \
 	${CDMAKE} DIRPRFX=${_tool}/ all; \
 	${CDMAKE} DIRPRFX=${_tool}/ DESTDIR=${CDTMP} install
 .endfor
@@ -2271,10 +2228,9 @@ _xb-cross-tools: .PHONY
     ${_clang_libs} \
     ${_clang} \
     ${_cc}
-	${_+_}@${ECHODIR} "===> xdev ${_tool} (obj,depend,all)"; \
+	${_+_}@${ECHODIR} "===> xdev ${_tool} (obj,all)"; \
 	cd ${.CURDIR}/${_tool}; \
 	${CDMAKE} DIRPRFX=${_tool}/ obj; \
-	if [ -z "${NO_DEPEND}" ]; then ${CDMAKE} DIRPRFX=${_tool}/ depend; fi; \
 	${CDMAKE} DIRPRFX=${_tool}/ all
 .endfor
 
diff --git a/Makefile.libcompat b/Makefile.libcompat
index 3a1b071..8060acb 100644
--- a/Makefile.libcompat
+++ b/Makefile.libcompat
@@ -148,7 +148,7 @@ build${libcompat}: .PHONY
 	${_+_}cd ${.CURDIR}; \
 	    ${LIBCOMPATWMAKE} -f Makefile.inc1 -DNO_FSCHG libraries
 .if ${libcompat} == "32"
-.for _t in obj depend all
+.for _t in obj all
 	${_+_}cd ${.CURDIR}/libexec/rtld-elf; PROG=ld-elf32.so.1 ${LIBCOMPATWMAKE} \
 	    -DNO_FSCHG DIRPRFX=libexec/rtld-elf/ ${_t}
 	${_+_}cd ${.CURDIR}/usr.bin/ldd; PROG=ldd32 ${LIBCOMPATWMAKE} \
diff --git a/UPDATING b/UPDATING
index e85fe7f..2e4c37b 100644
--- a/UPDATING
+++ b/UPDATING
@@ -31,6 +31,11 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 11.x IS SLOW:
 	disable the most expensive debugging functionality run
 	"ln -s 'abort:false,junk:false' /etc/malloc.conf".)
 
+20160330:
+	The FAST_DEPEND build option has been removed and its functionality is
+	now the one true way.  The old mkdep(1) style of 'make depend' has
+	been removed.  See 20160311 for further details.
+
 20160317:
 	Resource range types have grown from unsigned long to uintmax_t.  All
 	drivers, and anything using libdevinfo, need to be recompiled.
diff --git a/gnu/lib/csu/Makefile b/gnu/lib/csu/Makefile
index 92d49dc..431baac 100644
--- a/gnu/lib/csu/Makefile
+++ b/gnu/lib/csu/Makefile
@@ -22,7 +22,6 @@ CFLAGS+=	-fno-inline-functions -fno-exceptions \
 CFLAGS+=	-I${GCCLIB}/include -I${GCCDIR}/config -I${GCCDIR} -I. \
 		-I${CCDIR}/cc_tools
 CRTS_CFLAGS=	-DCRTSTUFFS_O -DSHARED ${PICFLAG}
-MKDEP=		-DCRT_BEGIN
 
 .if ${TARGET_CPUARCH} == "arm"
 CFLAGS+=	-DTARGET_ARM_EABI
diff --git a/kerberos5/Makefile b/kerberos5/Makefile
index c93126d..e78084f 100644
--- a/kerberos5/Makefile
+++ b/kerberos5/Makefile
@@ -14,7 +14,6 @@ kerberize:
 	cd ${.CURDIR}/../${entry}; \
 	${MAKE} cleandir; \
 	${MAKE} obj; \
-	${MAKE} depend; \
 	${MAKE} all; \
 	${MAKE} install
 .endfor
@@ -25,7 +24,6 @@ dekerberize:
 	cd ${.CURDIR}/../${entry}; \
 	${MAKE} MK_KERBEROS=no cleandir; \
 	${MAKE} MK_KERBEROS=no obj; \
-	${MAKE} MK_KERBEROS=no depend; \
 	${MAKE} MK_KERBEROS=no all; \
 	${MAKE} MK_KERBEROS=no install
 .endfor
diff --git a/release/picobsd/build/Makefile.conf b/release/picobsd/build/Makefile.conf
index 7340663..1521b78 100644
--- a/release/picobsd/build/Makefile.conf
+++ b/release/picobsd/build/Makefile.conf
@@ -43,8 +43,7 @@ do_a_make_in_the_kernel_directory_anyways:
 	(cd ${COMPILE}; ${BINMAKE} KERNEL=kernel ${MODULES} )
 
 ${COMPILE}: ${CONF}/${CONFFILE}
-	(cd ${CONF}; ${CONFIG} -d ${COMPILE} ${CONFFILE}; \
-	cd ${COMPILE}; ${BINMAKE} KERNEL=kernel ${MODULES} depend )
+	cd ${CONF}; ${CONFIG} -d ${COMPILE} ${CONFFILE}
 
 ${CONF}/${CONFFILE}: ${KERNCONF}
 	# -mkdir -p ${CONF}		# XXX not needed yet.
diff --git a/secure/Makefile b/secure/Makefile
index 0b8ec01..c3b2c87 100644
--- a/secure/Makefile
+++ b/secure/Makefile
@@ -24,7 +24,6 @@ secure: .MAKE .PHONY
 	cd ${.CURDIR}/../${entry}; \
 	${MAKE} cleandir; \
 	${MAKE} obj; \
-	${MAKE} depend; \
 	${MAKE} all; \
 	${MAKE} install
 .endfor
@@ -35,7 +34,6 @@ insecure: .MAKE .PHONY
 	cd ${.CURDIR}/../${entry}; \
 	${MAKE} MK_CRYPT=no cleandir; \
 	${MAKE} MK_CRYPT=no obj; \
-	${MAKE} MK_CRYPT=no depend; \
 	${MAKE} MK_CRYPT=no all; \
 	${MAKE} MK_CRYPT=no install
 .endfor
diff --git a/share/man/man5/make.conf.5 b/share/man/man5/make.conf.5
index d1fc461..24ebffb 100644
--- a/share/man/man5/make.conf.5
+++ b/share/man/man5/make.conf.5
@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd February 24, 2016
+.Dd March 29, 2016
 .Dt MAKE.CONF 5
 .Os
 .Sh NAME
@@ -294,12 +294,6 @@ Set this to skip running
 .Xr config 8
 during
 .Dq Li "${MAKE} buildkernel" .
-.It Va NO_KERNELDEPEND
-.Pq Vt bool
-Set this to skip running
-.Dq Li "${MAKE} depend"
-during
-.Dq Li "${MAKE} buildkernel" .
 .It Va NO_KERNELOBJ
 .Pq Vt bool
 Set this to skip running
diff --git a/share/man/man7/build.7 b/share/man/man7/build.7
index 985c165..36603da 100644
--- a/share/man/man7/build.7
+++ b/share/man/man7/build.7
@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd February 26, 2016
+.Dd March 29, 2016
 .Dt BUILD 7
 .Os
 .Sh NAME
@@ -122,11 +122,13 @@ test suite on installed world.
 .It Cm clean
 Remove any files created during the build process.
 .It Cm cleandepend
-Remove the file
-.Pa ${.OBJDIR}/${DEPENDFILE}
-generated by a prior
+Remove the
+.Pa ${.OBJDIR}/${DEPENDFILE}*
+files generated by prior
+.Dq Li "make"
+and
 .Dq Li "make depend"
-step.
+steps.
 .It Cm cleandir
 Remove the canonical object directory if it exists, or perform
 actions equivalent to
@@ -146,6 +148,8 @@ and the second one will clean up
 .It Cm depend
 Generate a list of build dependencies in file
 .Pa ${.OBJDIR}/${DEPENDFILE} .
+Per-object dependencies are generated at build time and stored in
+.Pa ${.OBJDIR}/${DEPENDFILE}.${OBJ} .
 .It Cm install
 Install the results of the build to the appropriate location in the
 installation directory hierarchy specified in variable
@@ -412,7 +416,6 @@ If set, the build target
 defaults to setting
 .Va NO_KERNELCLEAN ,
 .Va NO_KERNELCONFIG ,
-.Va NO_KERNELDEPEND
 and
 .Va NO_KERNELOBJ .
 When set to a value other than
@@ -527,7 +530,7 @@ using the
 .Fl D
 option of
 .Xr make 1 :
-.Bl -tag -width ".Va -DNO_KERNELDEPEND"
+.Bl -tag -width ".Va -DNO_KERNELCONFIG"
 .It Va NO_CLEANDIR
 If set, the build targets that clean parts of the object tree use the
 equivalent of
@@ -565,12 +568,6 @@ If set, the build process does not run
 as part of the
 .Cm buildkernel
 target.
-.It Va NO_KERNELDEPEND
-If set, the build process does not run
-.Dq make depend
-as part of the
-.Cm buildkernel
-target.
 .It Va NO_KERNELOBJ
 If set, the build process does not run
 .Dq make obj
diff --git a/share/mk/bsd.clang-analyze.mk b/share/mk/bsd.clang-analyze.mk
index a8c9961..b375332 100644
--- a/share/mk/bsd.clang-analyze.mk
+++ b/share/mk/bsd.clang-analyze.mk
@@ -83,10 +83,7 @@ ${__obj}: ${OBJS_DEPEND_GUESS}
 ${__obj}: ${OBJS_DEPEND_GUESS.${__obj}}
 .endfor
 
-.if ${MK_FAST_DEPEND} == "yes"
-beforeanalyze: depend
-.endif
-beforeanalyze: .PHONY
+beforeanalyze: depend .PHONY
 .if !defined(_RECURSING_PROGS) && !empty(CLANG_ANALYZE_SRCS) && \
     ${CLANG_ANALYZE_OUTPUT} != "text"
 	mkdir -p ${CLANG_ANALYZE_OUTPUT_DIR}
diff --git a/share/mk/bsd.dep.mk b/share/mk/bsd.dep.mk
index 92c10a4..50ed33c 100644
--- a/share/mk/bsd.dep.mk
+++ b/share/mk/bsd.dep.mk
@@ -20,10 +20,6 @@
 #
 # HTAGSFLAGS	Options for htags(1) [not set]
 #
-# MKDEP		Options for ${MKDEPCMD} [not set]
-#
-# MKDEPCMD	Makefile dependency list program [mkdep]
-#
 # SRCS          List of source files (c, c++, assembler)
 #
 # DPSRCS	List of source files which are needed for generating
@@ -54,13 +50,6 @@ CTAGSFLAGS?=
 GTAGSFLAGS?=	-o
 HTAGSFLAGS?=
 
-_MKDEPCC:=	${CC:N${CCACHE_BIN}}
-# XXX: DEPFLAGS can come out once Makefile.inc1 properly passes down
-# CXXFLAGS.
-.if !empty(DEPFLAGS)
-_MKDEPCC+=	${DEPFLAGS}
-.endif
-MKDEPCMD?=	CC='${_MKDEPCC}' mkdep
 .if ${MK_DIRDEPS_BUILD} == "no"
 .MAKE.DEPENDFILE= ${DEPENDFILE}
 .endif
@@ -95,9 +84,6 @@ CLEANFILES?=
 
 .for _S in ${SRCS:N*.[dhly]}
 OBJS_DEPEND_GUESS.${_S:R}.o=	${_S}
-.if ${MK_FAST_DEPEND} == "no" && !exists(${.OBJDIR}/${DEPENDFILE})
-${_S:R}.o: ${OBJS_DEPEND_GUESS.${_S:R}.o}
-.endif
 .endfor
 
 # Lexical analyzers
@@ -106,9 +92,6 @@ ${_S:R}.o: ${OBJS_DEPEND_GUESS.${_S:R}.o}
 ${_LC}: ${_LSRC}
 	${LEX} ${LFLAGS} -o${.TARGET} ${.ALLSRC}
 OBJS_DEPEND_GUESS.${_LC:R}.o=	${_LC}
-.if ${MK_FAST_DEPEND} == "no" && !exists(${.OBJDIR}/${DEPENDFILE})
-${_LC:R}.o: ${OBJS_DEPEND_GUESS.${_LC:R}.o}
-.endif
 SRCS:=	${SRCS:S/${_LSRC}/${_LC}/}
 CLEANFILES+= ${_LC}
 .endfor
@@ -138,9 +121,6 @@ ${_YC}: ${_YSRC}
 	${YACC} ${YFLAGS} -o ${_YC} ${.ALLSRC}
 .endif
 OBJS_DEPEND_GUESS.${_YC:R}.o=	${_YC}
-.if ${MK_FAST_DEPEND} == "no" && !exists(${.OBJDIR}/${DEPENDFILE})
-${_YC:R}.o: ${OBJS_DEPEND_GUESS.${_YC:R}.o}
-.endif
 .endfor
 .endfor
 
@@ -175,7 +155,6 @@ ${_D}.po: ${_DSRC} ${POBJS:S/^${_D}.po$//}
 .if !empty(.MAKE.MODE:Mmeta) && empty(.MAKE.MODE:Mnofilemon)
 _meta_filemon=	1
 .endif
-.if ${MK_FAST_DEPEND} == "yes"
 .if ${MAKE_VERSION} < 20160220
 DEPEND_MP?=	-MP
 .endif
@@ -210,7 +189,6 @@ CFLAGS+=	${DEPEND_CFLAGS}
 .endfor
 .endif	# !defined(_SKIP_READ_DEPEND)
 .endif	# !defined(_meta_filemon)
-.endif	# ${MK_FAST_DEPEND} == "yes"
 .endif	# defined(SRCS)
 
 .if ${MK_DIRDEPS_BUILD} == "yes"
@@ -230,7 +208,6 @@ afterdepend: beforedepend
 # 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.
-.if ${MK_FAST_DEPEND} == "yes"
 .for __obj in ${DEPENDOBJS:O:u}
 .if (defined(_meta_filemon) && !exists(${.OBJDIR}/${__obj}.meta)) || \
     (!defined(_meta_filemon) && !exists(${.OBJDIR}/${DEPENDFILE}.${__obj}))
@@ -245,7 +222,6 @@ ${__obj}: ${OBJS_DEPEND_GUESS.${__obj}}
 .if ${MK_DIRDEPS_BUILD} == "no" || ${.MAKE.LEVEL} > 0
 beforebuild: depend
 .endif
-.endif	# ${MK_FAST_DEPEND} == "yes"
 
 .if !target(depend)
 .if defined(SRCS)
@@ -254,41 +230,14 @@ depend: beforedepend ${DEPENDFILE} afterdepend
 # Tell bmake not to look for generated files via .PATH
 .NOPATH: ${DEPENDFILE} ${DEPENDFILES_OBJS}
 
-.if ${MK_FAST_DEPEND} == "no"
-# Capture -include from CFLAGS.
-# This could be simpler with bmake :tW but needs to support fmake for MFC.
-_CFLAGS_INCLUDES= ${CFLAGS:Q:S/\\ /,/g:C/-include,/-include%/g:C/,/ /g:M-include*:C/%/ /g}
-_CXXFLAGS_INCLUDES= ${CXXFLAGS:Q:S/\\ /,/g:C/-include,/-include%/g:C/,/ /g:M-include*:C/%/ /g}
-
-# Different types of sources are compiled with slightly different flags.
-# Split up the sources, and filter out headers and non-applicable flags.
-MKDEP_CFLAGS=	${CFLAGS:M-nostdinc*} ${CFLAGS:M-[BIDU]*} ${CFLAGS:M-std=*} \
-		${CFLAGS:M-ansi} ${_CFLAGS_INCLUDES}
-MKDEP_CXXFLAGS=	${CXXFLAGS:M-nostdinc*} ${CXXFLAGS:M-[BIDU]*} \
-		${CXXFLAGS:M-std=*} ${CXXFLAGS:M-ansi} ${CXXFLAGS:M-stdlib=*} \
-		${_CXXFLAGS_INCLUDES}
-.endif	# ${MK_FAST_DEPEND} == "no"
-
 DPSRCS+= ${SRCS}
-# FAST_DEPEND will only generate a .depend if _EXTRADEPEND is used but
-# the target is created to allow 'make depend' to generate files.
+# A .depend file will only be generated if there are commands in
+# beforedepend/_EXTRADEPEND/afterdepend.  The target is kept
+# to allow 'make depend' to generate files.
 ${DEPENDFILE}: ${DPSRCS}
 .if exists(${.OBJDIR}/${DEPENDFILE})
 	rm -f ${DEPENDFILE}
 .endif
-.if ${MK_FAST_DEPEND} == "no"
-.if !empty(DPSRCS:M*.[cS])
-	${MKDEPCMD} -f ${DEPENDFILE} -a ${MKDEP} \
-	    ${MKDEP_CFLAGS} ${.ALLSRC:M*.[cS]}
-.endif
-.if !empty(DPSRCS:M*.cc) || !empty(DPSRCS:M*.C) || !empty(DPSRCS:M*.cpp) || \
-    !empty(DPSRCS:M*.cxx)
-	${MKDEPCMD} -f ${DEPENDFILE} -a ${MKDEP} \
-	    ${MKDEP_CXXFLAGS} \
-	    ${.ALLSRC:M*.cc} ${.ALLSRC:M*.C} ${.ALLSRC:M*.cpp} ${.ALLSRC:M*.cxx}
-.else
-.endif
-.endif	# ${MK_FAST_DEPEND} == "no"
 .if target(_EXTRADEPEND)
 _EXTRADEPEND: .USE
 ${DEPENDFILE}: _EXTRADEPEND
diff --git a/share/mk/bsd.lib.mk b/share/mk/bsd.lib.mk
index 3339ae2..4e22e92 100644
--- a/share/mk/bsd.lib.mk
+++ b/share/mk/bsd.lib.mk
@@ -289,12 +289,6 @@ all: all-man
 .endif
 
 _EXTRADEPEND:
-.if ${MK_FAST_DEPEND} == "no"
-	@TMP=_depend$$$$; \
-	sed -e 's/^\([^\.]*\).o[ ]*:/\1.o \1.po \1.So:/' < ${DEPENDFILE} \
-	    > $$TMP; \
-	mv $$TMP ${DEPENDFILE}
-.endif
 .if !defined(NO_EXTRADEPEND) && defined(SHLIB_NAME)
 .if defined(DPADD) && !empty(DPADD)
 	echo ${SHLIB_NAME_FULL}: ${DPADD} >> ${DEPENDFILE}
@@ -414,23 +408,6 @@ OBJS_DEPEND_GUESS.${_S:R}.So=	${_S}
 .endif
 
 .include <bsd.dep.mk>
-
-.if ${MK_FAST_DEPEND} == "no" && !exists(${.OBJDIR}/${DEPENDFILE})
-.if defined(LIB) && !empty(LIB)
-${OBJS} ${STATICOBJS} ${POBJS}: ${OBJS_DEPEND_GUESS}
-.for _S in ${SRCS:N*.[hly]}
-${_S:R}.po: ${OBJS_DEPEND_GUESS.${_S:R}.po}
-.endfor
-.endif
-.if defined(SHLIB_NAME) || \
-    defined(INSTALL_PIC_ARCHIVE) && defined(LIB) && !empty(LIB)
-${SOBJS}: ${OBJS_DEPEND_GUESS}
-.for _S in ${SRCS:N*.[hly]}
-${_S:R}.So: ${OBJS_DEPEND_GUESS.${_S:R}.So}
-.endfor
-.endif
-.endif
-
 .include <bsd.clang-analyze.mk>
 .include <bsd.obj.mk>
 .include <bsd.sys.mk>
diff --git a/share/mk/bsd.opts.mk b/share/mk/bsd.opts.mk
index 0fae155..3e321f3 100644
--- a/share/mk/bsd.opts.mk
+++ b/share/mk/bsd.opts.mk
@@ -52,7 +52,6 @@ __DEFAULT_YES_OPTIONS = \
     ASSERT_DEBUG \
     DEBUG_FILES \
     DOCCOMPRESS \
-    FAST_DEPEND \
     INCLUDES \
     INSTALLLIB \
     KERBEROS \
@@ -79,12 +78,6 @@ __DEFAULT_DEPENDENT_OPTIONS = \
     STAGING_PROG/STAGING \
 
 
-# Enable FAST_DEPEND by default for the meta build.
-.if !empty(.MAKE.MODE:Mmeta)
-__DEFAULT_YES_OPTIONS+=	FAST_DEPEND
-__DEFAULT_NO_OPTIONS:=	${__DEFAULT_NO_OPTIONS:NFAST_DEPEND}
-.endif
-
 .include <bsd.mkopt.mk>
 
 #
diff --git a/share/mk/bsd.prog.mk b/share/mk/bsd.prog.mk
index 3e21db9..fb0efdd 100644
--- a/share/mk/bsd.prog.mk
+++ b/share/mk/bsd.prog.mk
@@ -283,13 +283,6 @@ OBJS_DEPEND_GUESS+= ${SRCS:M*.h}
 .endif
 
 .include <bsd.dep.mk>
-
-.if defined(PROG)
-.if ${MK_FAST_DEPEND} == "no" && !exists(${.OBJDIR}/${DEPENDFILE})
-${OBJS}: ${OBJS_DEPEND_GUESS}
-.endif
-.endif
-
 .include <bsd.clang-analyze.mk>
 .include <bsd.obj.mk>
 .include <bsd.sys.mk>
diff --git a/share/mk/local.meta.sys.mk b/share/mk/local.meta.sys.mk
index 14bfb64..a7e1016 100644
--- a/share/mk/local.meta.sys.mk
+++ b/share/mk/local.meta.sys.mk
@@ -6,7 +6,6 @@
 
 # we need this until there is an alternative
 MK_INSTALL_AS_USER= yes
-MK_FAST_DEPEND= yes
 
 _default_makeobjdir=$${.CURDIR:S,^$${SRCTOP},$${OBJTOP},}
 
diff --git a/sys/conf/kern.opts.mk b/sys/conf/kern.opts.mk
index 17915ff..ad6ee72 100644
--- a/sys/conf/kern.opts.mk
+++ b/sys/conf/kern.opts.mk
@@ -30,7 +30,6 @@ __DEFAULT_YES_OPTIONS = \
     CDDL \
     CRYPT \
     CUSE \
-    FAST_DEPEND \
     FORMAT_EXTENSIONS \
     INET \
     INET6 \
@@ -49,12 +48,6 @@ __DEFAULT_NO_OPTIONS = \
     NAND \
     OFED
 
-# Enable FAST_DEPEND by default for the meta build.
-.if !empty(.MAKE.MODE:Unormal:Mmeta)
-__DEFAULT_YES_OPTIONS+=	FAST_DEPEND
-__DEFAULT_NO_OPTIONS:=	${__DEFAULT_NO_OPTIONS:NFAST_DEPEND}
-.endif
-
 # Some options are totally broken on some architectures. We disable
 # them. If you need to enable them on an experimental basis, you
 # must change this code.
diff --git a/sys/conf/kern.post.mk b/sys/conf/kern.post.mk
index d5047a8..d28e87b 100644
--- a/sys/conf/kern.post.mk
+++ b/sys/conf/kern.post.mk
@@ -145,10 +145,6 @@ ${FULLKERNEL}: ${SYSTEM_DEP} vers.o
 
 OBJS_DEPEND_GUESS+=	assym.s vnode_if.h ${BEFORE_DEPEND:M*.h} \
 			${MFILES:T:S/.m$/.h/}
-.if ${MK_FAST_DEPEND} == "no" && !exists(${.OBJDIR}/.depend)
-${SYSTEM_OBJS}: ${OBJS_DEPEND_GUESS}
-.endif
-
 LNFILES=	${CFILES:T:S/.c$/.ln/}
 
 .for mfile in ${MFILES}
@@ -189,23 +185,6 @@ genassym.o: $S/$M/$M/genassym.c
 
 ${SYSTEM_OBJS} genassym.o vers.o: opt_global.h
 
-# Normal files first
-CFILES_NORMAL=	${CFILES:N*/cddl/*:N*fs/nfsclient/nfs_clkdtrace*:N*/compat/linuxkpi/common/*:N*/ofed/*:N*/dev/mlx5/*}
-SFILES_NORMAL=	${SFILES:N*/cddl/*}
-
-# We have "special" -I include paths for zfs/dtrace files in 'depend'.
-CFILES_CDDL=	${CFILES:M*/cddl/*}
-SFILES_CDDL=	${SFILES:M*/cddl/*}
-
-# We have "special" -I include paths for LinuxKPI.
-CFILES_LINUXKPI=${CFILES:M*/compat/linuxkpi/common/*}
-
-# We have "special" -I include paths for OFED.
-CFILES_OFED=${CFILES:M*/ofed/*}
-
-# We have "special" -I include paths for MLX5.
-CFILES_MLX5=${CFILES:M*/dev/mlx5/*}
-
 # Skip reading .depend when not needed to speed up tree-walks
 # and simple lookups.
 .if !empty(.MAKEFLAGS:M-V${_V_READ_DEPEND}) || make(obj) || make(clean*) || \
@@ -216,9 +195,6 @@ _SKIP_READ_DEPEND=	1
 .endif
 
 kernel-depend: .depend
-# The argument list can be very long, so use make -V and xargs to
-# pass it to mkdep.
-_MKDEPCC:= ${CC:N${CCACHE_BIN}}
 SRCS=	assym.s vnode_if.h ${BEFORE_DEPEND} ${CFILES} \
 	${SYSTEM_CFILES} ${GEN_CFILES} ${SFILES} \
 	${MFILES:T:S/.m$/.h/}
@@ -228,7 +204,6 @@ DEPENDFILES=	.depend .depend.*
 .if !empty(.MAKE.MODE:Unormal:Mmeta) && empty(.MAKE.MODE:Unormal:Mnofilemon)
 _meta_filemon=	1
 .endif
-.if ${MK_FAST_DEPEND} == "yes"
 DEPENDOBJS+=	${SYSTEM_OBJS} genassym.o
 DEPENDFILES_OBJS=	${DEPENDOBJS:O:u:C/^/.depend./}
 .if ${MAKE_VERSION} < 20160220
@@ -261,12 +236,10 @@ CFLAGS+=	${DEPEND_CFLAGS}
 # all dependencies are correctly added or accounted for.  This is mostly to
 # ensure downstream uses of kernel-depend are handled.
 beforebuild: kernel-depend
-.endif	# ${MK_FAST_DEPEND} == "yes"
 
 # 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.
-.if ${MK_FAST_DEPEND} == "yes"
 .for __obj in ${DEPENDOBJS:O:u}
 .if (defined(_meta_filemon) && !exists(${.OBJDIR}/${__obj}.meta)) || \
     (!defined(_meta_filemon) && !exists(${.OBJDIR}/.depend.${__obj}))
@@ -276,32 +249,10 @@ ${__obj}: ${OBJS_DEPEND_GUESS}
 ${__obj}: ${OBJS_DEPEND_GUESS.${__obj}}
 .endif
 .endfor
-.endif
 
 .NOPATH: .depend ${DEPENDFILES_OBJS}
 
 .depend: .PRECIOUS ${SRCS}
-.if ${MK_FAST_DEPEND} == "no"
-	rm -f ${.TARGET}.tmp
-# C files
-	${MAKE} -V CFILES_NORMAL -V SYSTEM_CFILES -V GEN_CFILES | \
-	    CC="${_MKDEPCC}" xargs mkdep -a -f ${.TARGET}.tmp ${CFLAGS}
-	${MAKE} -V CFILES_CDDL | \
-	    CC="${_MKDEPCC}" xargs mkdep -a -f ${.TARGET}.tmp ${ZFS_CFLAGS} \
-	    ${FBT_CFLAGS} ${DTRACE_CFLAGS}
-	${MAKE} -V CFILES_LINUXKPI | \
-	    CC="${_MKDEPCC}" xargs mkdep -a -f ${.TARGET}.tmp \
-		${CFLAGS} ${LINUXKPI_INCLUDES}
-	${MAKE} -V CFILES_OFED -V CFILES_MLX5 | \
-	    CC="${_MKDEPCC}" xargs mkdep -a -f ${.TARGET}.tmp \
-		${CFLAGS} ${OFEDINCLUDES}
-# Assembly files
-	${MAKE} -V SFILES_NORMAL | \
-	    CC="${_MKDEPCC}" xargs mkdep -a -f ${.TARGET}.tmp ${ASM_CFLAGS}
-	${MAKE} -V SFILES_CDDL | \
-	    CC="${_MKDEPCC}" xargs mkdep -a -f ${.TARGET}.tmp ${ZFS_ASM_CFLAGS}
-	mv ${.TARGET}.tmp ${.TARGET}
-.endif
 
 _ILINKS= machine
 .if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64"
diff --git a/sys/conf/kern.pre.mk b/sys/conf/kern.pre.mk
index cf6ec10..591c988 100644
--- a/sys/conf/kern.pre.mk
+++ b/sys/conf/kern.pre.mk
@@ -64,29 +64,6 @@ NOSTDINC= -nostdinc
 
 INCLUDES= ${NOSTDINC} ${INCLMAGIC} -I. -I$S
 
-.if ${MK_FAST_DEPEND} == "no" && (make(depend) || make(kernel-depend))
-
-# This hack lets us use the ipfilter code without spamming a new
-# include path into contrib'ed source files.
-INCLUDES+= -I$S/contrib/ipfilter
-
-# ... and the same for ath
-INCLUDES+= -I$S/dev/ath -I$S/dev/ath/ath_hal -I$S/contrib/dev/ath/ath_hal
-
-# ... and the same for the NgATM stuff
-INCLUDES+= -I$S/contrib/ngatm
-
-# ... and the same for vchiq
-INCLUDES+= -I$S/contrib/vchiq
-
-# ... and the same for twa
-INCLUDES+= -I$S/dev/twa
-
-# ... and the same for cxgb and cxgbe
-INCLUDES+= -I$S/dev/cxgb -I$S/dev/cxgbe
-
-.endif
-
 CFLAGS=	${COPTFLAGS} ${DEBUG}
 CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h
 CFLAGS_PARAM_INLINE_UNIT_GROWTH?=100
diff --git a/sys/conf/kmod.mk b/sys/conf/kmod.mk
index 9eb91d0..8592855 100644
--- a/sys/conf/kmod.mk
+++ b/sys/conf/kmod.mk
@@ -458,11 +458,6 @@ cleanilinks:
 OBJS_DEPEND_GUESS+= ${SRCS:M*.h}
 
 .include <bsd.dep.mk>
-
-.if ${MK_FAST_DEPEND} == "no" && !exists(${.OBJDIR}/${DEPENDFILE})
-${OBJS}: ${OBJS_DEPEND_GUESS}
-.endif
-
 .include <bsd.clang-analyze.mk>
 .include <bsd.obj.mk>
 .include "kern.mk"
diff --git a/sys/modules/pflog/Makefile b/sys/modules/pflog/Makefile
index 1889681..36656dc 100644
--- a/sys/modules/pflog/Makefile
+++ b/sys/modules/pflog/Makefile
@@ -7,14 +7,11 @@ SRCS=	if_pflog.c \
 	opt_pf.h opt_inet.h opt_inet6.h opt_bpf.h
 SRCS+=	bus_if.h device_if.h
 
-.if defined(KERNBUILDDIR)
-MKDEP+=		-include ${KERNBUILDDIR}/opt_global.h
-.else
+.if !defined(KERNBUILDDIR)
 .if defined(VIMAGE)
 opt_global.h:
 	echo "#define VIMAGE 1" >> ${.TARGET}
 CFLAGS+=	-include opt_global.h
-MKDEP+=		-include opt_global.h
 .endif
 .endif
 
diff --git a/sys/modules/pfsync/Makefile b/sys/modules/pfsync/Makefile
index d38bde7..89af6f9 100644
--- a/sys/modules/pfsync/Makefile
+++ b/sys/modules/pfsync/Makefile
@@ -7,14 +7,11 @@ SRCS=	if_pfsync.c \
 	opt_pf.h opt_inet.h opt_inet6.h
 SRCS+=	bus_if.h device_if.h
 
-.if defined(KERNBUILDDIR)
-MKDEP+=		-include ${KERNBUILDDIR}/opt_global.h
-.else
+.if !defined(KERNBUILDDIR)
 .if defined(VIMAGE)
 opt_global.h:
 	echo "#define VIMAGE 1" >> ${.TARGET}
 CFLAGS+=	-include opt_global.h
-MKDEP+=		-include opt_global.h
 .endif
 .endif
 
diff --git a/sys/modules/wtap/Makefile b/sys/modules/wtap/Makefile
index 68b905f..58f60fb 100644
--- a/sys/modules/wtap/Makefile
+++ b/sys/modules/wtap/Makefile
@@ -16,11 +16,8 @@ SRCS	+= visibility.c
 
 SRCS	+= opt_global.h
 
-.if defined(KERNBUILDDIR)
-MKDEP=          -include ${KERNBUILDDIR}/opt_global.h
-.else
+.if !defined(KERNBUILDDIR)
 CFLAGS+=        -include opt_global.h
-MKDEP=          -include opt_global.h
 
 opt_global.h:
 	echo "#define VIMAGE 1" > ${.TARGET}
diff --git a/tools/build/options/WITHOUT_FAST_DEPEND b/tools/build/options/WITHOUT_FAST_DEPEND
deleted file mode 100644
index 2e6ca44..0000000
--- a/tools/build/options/WITHOUT_FAST_DEPEND
+++ /dev/null
@@ -1,5 +0,0 @@
-.\" $FreeBSD$
-Set to use the historical
-.Xr mkdep 1
-for the "make depend" phase of the build.
-This option is deprecated and will be removed soon.
diff --git a/tools/build/options/WITH_FAST_DEPEND b/tools/build/options/WITH_FAST_DEPEND
deleted file mode 100644
index 2597a36..0000000
--- a/tools/build/options/WITH_FAST_DEPEND
+++ /dev/null
@@ -1,7 +0,0 @@
-.\" $FreeBSD$
-Set to generate
-.Sy .depend
-files in the build during compilation instead of the
-historial
-.Xr mkdep 1
-call during the "make depend" phase.
diff --git a/tools/tinder.sh b/tools/tinder.sh
index 4291e88..aaca7c8 100755
--- a/tools/tinder.sh
+++ b/tools/tinder.sh
@@ -58,4 +58,4 @@ for i in "$@"; do
 		;;
 	esac
 done
-make tinderbox UNIVERSE_TARGET="_cleanobj _obj _depend everything" $MAKE_ARGS SUBDIR_OVERRIDE="$SUBDIR"
+make tinderbox UNIVERSE_TARGET="_cleanobj _obj everything" $MAKE_ARGS SUBDIR_OVERRIDE="$SUBDIR"
diff --git a/usr.sbin/ndiscvt/ndisgen.sh b/usr.sbin/ndiscvt/ndisgen.sh
index 97e8364..1674ea1 100644
--- a/usr.sbin/ndiscvt/ndisgen.sh
+++ b/usr.sbin/ndiscvt/ndisgen.sh
@@ -432,11 +432,6 @@ fi
 echo -n "	Building kernel module... "
 echo "" > bus_if.h
 echo "" > device_if.h
-if ! ${MAKE} -f ${MAKEFILE} depend > /dev/null; then
-	echo "build failed. Exiting."
-	echo ""
-	exit
-fi
 if ! ${MAKE} -f ${MAKEFILE} all > /dev/null; then
 	echo "build failed. Exiting."
 	echo ""