Differential D27300 Diff 79951 head/share/mk/meta.sys.mk

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head/share/mk/meta.sys.mk

	# $FreeBSD$			# $FreeBSD$
	# $Id: meta.sys.mk,v 1.34 2019/01/24 19:36:25 sjg Exp $			# $Id: meta.sys.mk,v 1.38 2020/08/19 17:51:53 sjg Exp $

	#			#
	# @(#) Copyright (c) 2010, Simon J. Gerraty			# @(#) Copyright (c) 2010-2020, Simon J. Gerraty
	#			#
	# This file is provided in the hope that it will			# This file is provided in the hope that it will
	# be of use. There is absolutely NO WARRANTY.			# be of use. There is absolutely NO WARRANTY.
	# Permission to copy, redistribute or otherwise			# Permission to copy, redistribute or otherwise
	# use this file is hereby granted provided that			# use this file is hereby granted provided that
	# the above copyright notice and this notice are			# the above copyright notice and this notice are
	# left intact.			# left intact.
	#			#
	# Please send copies of changes and bug-fixes to:			# Please send copies of changes and bug-fixes to:
	# sjg@crufty.net			# sjg@crufty.net
	#			#

	# include this if you want to enable meta mode			# include this if you want to enable meta mode
	# for maximum benefit, requires filemon(4) driver.			# for maximum benefit, requires filemon(4) driver.

	.if ${MAKE_VERSION:U0} > 20100901			.if ${MAKE_VERSION:U0} > 20100901
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	META_COOKIE_TOUCH?= touch ${COOKIE.${.TARGET}:U${.OBJDIR}/${.TARGET:T}}			META_COOKIE_TOUCH?= touch ${COOKIE.${.TARGET}:U${.OBJDIR}/${.TARGET:T}}
	META_NOPHONY=			META_NOPHONY=
	META_NOECHO= :			META_NOECHO= :

	# some targets involve old pre-built targets			# some targets involve old pre-built targets
	# ignore mtime of shell			# ignore mtime of shell
	# and mtime of makefiles does not matter in meta mode			# and mtime of makefiles does not matter in meta mode
	.MAKE.META.IGNORE_PATHS += \			.MAKE.META.IGNORE_PATHS += \
	${MAKEFILE} \			${MAKEFILE} \
				${MAKE_SHELL} \
	${SHELL} \			${SHELL} \
	${SYS_MK_DIR}			${SYS_MK_DIR} \


	.if ${UPDATE_DEPENDFILE:Uyes:tl} != "no"			.if ${UPDATE_DEPENDFILE:Uyes:tl} != "no"
	.if ${.MAKEFLAGS:Uno:M-k} != ""			.if ${.MAKEFLAGS:Uno:M-k} != ""
	# make this more obvious			# make this more obvious
	.warning Setting UPDATE_DEPENDFILE=NO due to -k			.warning Setting UPDATE_DEPENDFILE=NO due to -k
	UPDATE_DEPENDFILE= NO			UPDATE_DEPENDFILE= NO
	.export UPDATE_DEPENDFILE			.export UPDATE_DEPENDFILE
	.elif !exists(/dev/filemon)			.elif !exists(/dev/filemon)
	.error ${.newline}ERROR: The filemon module (/dev/filemon) is not loaded.			.error ${.newline}ERROR: The filemon module (/dev/filemon) is not loaded.
	.endif			.endif
	.endif			.endif

	.if ${.MAKE.LEVEL} == 0			.if ${.MAKE.LEVEL} == 0
	# make sure dirdeps target exists and do it first			# make sure dirdeps target exists and do it first
	all: dirdeps .WAIT			all: dirdeps .WAIT
	dirdeps:			dirdeps:
	.NOPATH: dirdeps			.NOPATH: dirdeps

	.if defined(ALL_MACHINES)			.if defined(ALL_MACHINES)
	# the first .MAIN: is what counts			# the first .MAIN: is what counts
	# by default dirdeps is all we want at level0			# by default dirdeps is all we want at level0
	.MAIN: dirdeps			.MAIN: dirdeps
	# tell dirdeps.mk what we want
	BUILD_AT_LEVEL0 = no
	.endif
	.if ${.TARGETS:Nall} == ""
	# it works best if we do everything via sub-makes
	BUILD_AT_LEVEL0 ?= no
	.endif			.endif

	.endif			.endif
	.else			.else
	META_COOKIE_TOUCH=			META_COOKIE_TOUCH=
	# some targets need to be .PHONY in non-meta mode			# some targets need to be .PHONY in non-meta mode
	META_NOPHONY= .PHONY			META_NOPHONY= .PHONY
	META_NOECHO= echo			META_NOECHO= echo
	.endif			.endif
	.endif			.endif