Index: head/en_US.ISO8859-1/htdocs/releases/12.0R/Makefile
===================================================================
--- head/en_US.ISO8859-1/htdocs/releases/12.0R/Makefile	(revision 51067)
+++ head/en_US.ISO8859-1/htdocs/releases/12.0R/Makefile	(revision 51068)
@@ -1,115 +1,117 @@
 # $FreeBSD$
 
 .if exists(../Makefile.conf)
 .include "../Makefile.conf"
 .endif
 .if exists(../Makefile.inc)
 .include "../Makefile.inc"
 .endif
 
 RELN_ROOT?=	${.CURDIR}
 
 _OS?=		FreeBSD
 _REVISION?=	12.0
 _BRANCH?=	RELEASE
 THISRELEASE?=	${_OS}-${_REVISION}-${_BRANCH}
 
 DOCS=	index.xml \
 	schedule.xml
 
 DATA=	docbook.css
 
 # PGP-signed checksums
 
 _BIGIRON?=	amd64 \
 		i386 \
 		powerpc \
 		powerpc-powerpc64 \
 		sparc64 \
 		arm64-aarch64
 
 _VMS?=		amd64 \
 		i386 \
 		arm64-aarch64
 
 _ARM?=		BANANAPI \
 		BEAGLEBONE \
 		CUBIEBOARD \
 		CUBIEBOARD2 \
 		CUBOX-HUMMINGBOARD \
 		GUMSTIX \
 		PANDABOARD \
 		RPI-B \
 		RPI2 \
 		WANDBOARD
 
 .for CHECKSUM in SHA512 SHA256
 . for _B in ${_BIGIRON}
 #DATA+=		CHECKSUM.${CHECKSUM}-${THISRELEASE}-${_B}.asc
 . endfor
 . for _V in ${_VMS}
 #DATA+=		CHECKSUM.${CHECKSUM}-${THISRELEASE}-${_V}-vm.asc
 . endfor
 . for _A in ${_ARM}
 #DATA+=		CHECKSUM.${CHECKSUM}-${THISRELEASE}-arm-armv6-${_A}.asc
 . endfor
 .endfor
 
 _hardware?=	hardware
 
 # The path used on build-web is 'src/share/man/man4'.
 .if !defined(MAN4DIR) || empty(MAN4DIR)
 . if exists(${DOC_PREFIX}/../src/share/man/man4)
 MAN4DIR=	${DOC_PREFIX}/../src/share/man/man4
 . elif exists(${DOC_PREFIX}/../share/man/man4)
 MAN4DIR=	${DOC_PREFIX}/../share/man/man4
 . elif exists(${DOC_PREFIX}/../man/man4)
 MAN4DIR=	${DOC_PREFIX}/../man/man4
 . elif exists(${DOC_PREFIX}/../man4)
 MAN4DIR=	${DOC_PREFIX}/../man4
 . else
 .  warning "MAN4DIR not found.  Unable to build hardware.html"
 _hardware=	# empty
 . endif
 .endif
 
 D=		errata
 D+=		${_hardware}
 D+=		readme
 D+=		relnotes
 
 MAN4PAGES?=	${MAN4DIR}/*.4 ${MAN4DIR}/man4.*/*.4
 ARCHLIST?=	${.CURDIR}/../../share/misc/dev.archlist.txt
-CLEANFILES+=	dev-auto.ent
+CLEANFILES+=	dev-auto.ent \
+		index.html \
+		schedule.html
 
 MAN2HWNOTES_CMD=${.CURDIR}/../../share/misc/man2hwnotes.pl
 .if defined(HWNOTES_MI)
 MAN2HWNOTES_FLAGS=
 .else
 MAN2HWNOTES_FLAGS=	-c
 .endif
 
 dev-auto.ent:
-	${PERL} ${MAN2HWNOTES_CMD} ${MAN2HWNOTES_FLAGS} -a ${ARCHLIST} -o ${.TARGET} ${MAN4PAGES}
+	${PERL} ${MAN2HWNOTES_CMD} ${MAN2HWNOTES_FLAGS} -a ${ARCHLIST} -o ${.TARGET}.tmp ${MAN4PAGES}
+	${MV} ${.TARGET}.tmp ${.TARGET}
 
-beforebuild:	dev-auto.ent
-
+.if make(clean)
 beforeclean:
-.for _SD in ${D}
-	${MAKE} -C ${_SD} DOCINSTALLDIR=${DOCINSTALLDIR} clean
-.endfor
+SUBDIR+=	${D}
+.include "${DOC_PREFIX}/share/mk/doc.subdir.mk"
+.endif
 
 beforeinstall:
 .for _SD in ${D}
 . if (${_SD:Mhardware} != "")
 	${MAKE} -B -C ${.CURDIR} dev-auto.ent
 . endif
 	${MAKE} -C ${_SD} DOCINSTALLDIR=${DOCINSTALLDIR} all
 .endfor
 
 afterinstall:
 .for _SD in ${D}
 	${MAKE} -C ${_SD} DOCINSTALLDIR=${DOCINSTALLDIR} install
 .endfor
 
 .include "${DOC_PREFIX}/share/mk/web.site.mk"
Index: head/en_US.ISO8859-1/htdocs/releases/12.0R/errata/Makefile
===================================================================
--- head/en_US.ISO8859-1/htdocs/releases/12.0R/errata/Makefile	(revision 51067)
+++ head/en_US.ISO8859-1/htdocs/releases/12.0R/errata/Makefile	(revision 51068)
@@ -1,35 +1,34 @@
 # $FreeBSD$
 
 .if exists(../Makefile.conf)
 .include "../Makefile.conf"
 .endif
 .if exists(../Makefile.inc)
 .include "../Makefile.inc"
 .endif
 
 DOC_PREFIX?=	${.CURDIR}/../../../../..
 RELN_ROOT?=	${.CURDIR}/..
 
 DOC?=			errata
 FORMATS?=		html
 INSTALL_COMPRESSED?=	gz
 INSTALL_ONLY_COMPRESSED=
 
 JADEFLAGS+=		-V %generate-article-toc%
 
 SRCS?=			errata.xml
 
 DATA+=			${DOC}.html
 
-beforeclean:
 CLEANFILES+=		${DOC}.html \
 			${DOC}.txt \
 			catalog-cwd.xml \
 			autogen.ent \
 			${DOC}.parsed.*
 
 install: ${DOC}.html
 	mkdir -p ${DOCINSTALLDIR}
 	${INSTALL_DOCS} ${DATA} ${DOCINSTALLDIR}
 
 .include "${DOC_PREFIX}/share/mk/doc.project.mk"
Index: head/en_US.ISO8859-1/htdocs/releases/12.0R/hardware/Makefile
===================================================================
--- head/en_US.ISO8859-1/htdocs/releases/12.0R/hardware/Makefile	(revision 51067)
+++ head/en_US.ISO8859-1/htdocs/releases/12.0R/hardware/Makefile	(revision 51068)
@@ -1,35 +1,34 @@
 # $FreeBSD$
 
 .if exists(../Makefile.conf)
 .include "../Makefile.conf"
 .endif
 .if exists(../Makefile.inc)
 .include "../Makefile.inc"
 .endif
 
 DOC_PREFIX?=	${.CURDIR}/../../../../..
 RELN_ROOT?=	${.CURDIR}/..
 
 JADEFLAGS+=		-V %generate-article-toc%
 
 DOC?=			hardware
 FORMATS?=		html
 INSTALL_COMPRESSED?=	gz
 INSTALL_ONLY_COMPRESSED=
 
 SRCS?=			hardware.xml
 
 DATA+=			${DOC}.html
 
-beforeclean:
 CLEANFILES+=		${DOC}.html \
 			${DOC}.txt \
 			catalog-cwd.xml \
 			autogen.ent \
 			${DOC}.parsed.*
 
 install: ${DOC}.html
 	mkdir -p ${DOCINSTALLDIR}
 	${INSTALL_DOCS} ${DATA} ${DOCINSTALLDIR}
 
 .include "${DOC_PREFIX}/share/mk/doc.project.mk"
Index: head/en_US.ISO8859-1/htdocs/releases/12.0R/readme/Makefile
===================================================================
--- head/en_US.ISO8859-1/htdocs/releases/12.0R/readme/Makefile	(revision 51067)
+++ head/en_US.ISO8859-1/htdocs/releases/12.0R/readme/Makefile	(revision 51068)
@@ -1,35 +1,34 @@
 # $FreeBSD$
 
 .if exists(../Makefile.conf)
 .include "../Makefile.conf"
 .endif
 .if exists(../Makefile.inc)
 .include "../Makefile.inc"
 .endif
 
 DOC_PREFIX?=	${.CURDIR}/../../../../..
 RELN_ROOT?=	${.CURDIR}/..
 
 DOC=			readme
 FORMATS?=		html
 INSTALL_COMPRESSED?=	gz
 INSTALL_ONLY_COMPRESSED=
 
 JADEFLAGS+=		-V %generate-article-toc%
 
 SRCS?=			readme.xml
 
 DATA+=			${DOC}.html
 
-beforeclean:
 CLEANFILES+=		${DOC}.html \
 			${DOC}.txt \
 			catalog-cwd.xml \
 			autogen.ent \
 			${DOC}.parsed.*
 
 install: ${DOC}.html
 	mkdir -p ${DOCINSTALLDIR}
 	${INSTALL_DOCS} ${DATA} ${DOCINSTALLDIR}
 
 .include "${DOC_PREFIX}/share/mk/doc.project.mk"
Index: head/en_US.ISO8859-1/htdocs/releases/12.0R/relnotes/Makefile
===================================================================
--- head/en_US.ISO8859-1/htdocs/releases/12.0R/relnotes/Makefile	(revision 51067)
+++ head/en_US.ISO8859-1/htdocs/releases/12.0R/relnotes/Makefile	(revision 51068)
@@ -1,35 +1,34 @@
 # $FreeBSD$
 
 .if exists(../Makefile.conf)
 .include "../Makefile.conf"
 .endif
 .if exists(../Makefile.inc)
 .include "../Makefile.inc"
 .endif
 
 DOC_PREFIX?=	${.CURDIR}/../../../../..
 RELN_ROOT?=	${.CURDIR}/..
 
 DOC=			relnotes
 FORMATS?=		html
 INSTALL_COMPRESSED?=	gz
 INSTALL_ONLY_COMPRESSED=
 
 JADEFLAGS+=		-V %generate-article-toc%
 
 SRCS?=			relnotes.xml
 
 DATA+=			${DOC}.html
 
-beforeclean:
 CLEANFILES+=		${DOC}.html \
 			${DOC}.txt \
 			catalog-cwd.xml \
 			autogen.ent \
 			${DOC}.parsed.*
 
 install: ${DOC}.html
 	mkdir -p ${DOCINSTALLDIR}
 	${INSTALL_DOCS} ${DATA} ${DOCINSTALLDIR}
 
 .include "${DOC_PREFIX}/share/mk/doc.project.mk"