Connect 12-CURRENT release notes and related documentation to the

build.

Sponsored by:	The FreeBSD Foundation

en_US.ISO8859-1/htdocs/releases/12.0R/Makefile

@@ -7,6 +7,8 @@
 .include "../Makefile.inc"
 .endif
 
+RELN_ROOT?=	${.CURDIR}
+
 _OS?=		FreeBSD
 _REVISION?=	12.0
 _BRANCH?=	RELEASE
@@ -53,4 +55,62 @@ _ARM?=		BANANAPI \
 . endfor
 .endfor
 
+_hardware?=	hardware
+.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=	${DOC_PREFIX}/../share/man/man4
+. elfi exists(${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?=	${.CURDIR}/../../share/misc/dev.archlist.txt
+CLEANFILES+=	dev-auto.ent
+
+MAN2HWNOTES_CMD=${.CURDIR}/../../share/misc/man2hwnotes.pl
+.if defined(HWNOTES_MI)
+MAN2HWNOTES_FLAGS=
+.else
+MAN2HWNOTES_FLAGS=	-c
+.endif
+
+dev-auto.ent: ${MAN4PAGES} ${ARCHLIST} ${MAN2HWNOTES_CMD} .PHONY
+	${PERL} ${MAN2HWNOTES_CMD} ${MAN2HWNOTES_FLAGS} -a ${ARCHLIST} -o ${.TARGET} ${MAN4PAGES}
+
+.ORDER:		all dev-auto.ent
+.ORDER:		all ${DOC}.html
+
+beforebuild:	dev-auto.ent
+
+beforeclean:
+.for _SD in ${D}
+	${MAKE} -C ${_SD} DOCINSTALLDIR=${DOCINSTALLDIR} clean
+.endfor
+
+beforeinstall:
+.for _SD in ${D}
+. if (${_SD:Mhardware} != "")
+	${MAKE} -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"