1# $Id: dirdeps.mk,v 1.165 2023/08/19 17:35:32 sjg Exp $ 2 3# SPDX-License-Identifier: BSD-2-Clause 4# 5# Copyright (c) 2010-2023, Simon J. Gerraty 6# Copyright (c) 2010-2018, Juniper Networks, Inc. 7# All rights reserved. 8# 9# Redistribution and use in source and binary forms, with or without 10# modification, are permitted provided that the following conditions 11# are met: 12# 1. Redistributions of source code must retain the above copyright 13# notice, this list of conditions and the following disclaimer. 14# 2. Redistributions in binary form must reproduce the above copyright 15# notice, this list of conditions and the following disclaimer in the 16# documentation and/or other materials provided with the distribution. 17# 18# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 30# Much of the complexity here is for supporting cross-building. 31# If a tree does not support that, simply using plain Makefile.depend 32# should provide sufficient clue. 33# Otherwise the recommendation is to use Makefile.depend.${MACHINE} 34# as expected below. 35 36# Note: this file gets multiply included. 37# This is what we do with DIRDEPS 38 39# DIRDEPS: 40# This is a list of directories - relative to SRCTOP, it is 41# normally only of interest to .MAKE.LEVEL 0. 42# In some cases the entry may be qualified with a .<machine> 43# or .<target_spec> suffix (see TARGET_SPEC_VARS below), 44# for example to force building something for the pseudo 45# machines "host" or "common" regardless of current ${MACHINE}. 46# 47# All unqualified entries end up being qualified with .${TARGET_SPEC} 48# and partially qualified (if TARGET_SPEC_VARS has multiple 49# entries) are also expanded to a full .<target_spec>. 50# The _DIRDEP_USE target uses the suffix to set TARGET_SPEC 51# correctly when visiting each entry. 52# 53# The fully qualified directory entries are used to construct a 54# dependency graph that will drive the build later. 55# 56# Also, for each fully qualified directory target, we will search 57# using ${.MAKE.DEPENDFILE_PREFERENCE} to find additional 58# dependencies. We use Makefile.depend (default value for 59# .MAKE.DEPENDFILE_PREFIX) to refer to these makefiles to 60# distinguish them from others. 61# 62# Before each Makefile.depend file is read, we set 63# DEP_RELDIR to be the RELDIR (path relative to SRCTOP) for 64# its directory, and DEP_MACHINE etc according to the .<target_spec> 65# represented by the suffix of the corresponding target. 66# 67# Since each Makefile.depend file includes dirdeps.mk, this 68# processing is recursive and results in .MAKE.LEVEL 0 learning the 69# dependencies of the tree wrt the initial directory (_DEP_RELDIR). 70# 71# NOTE: given the extent of processing that DIRDEPS undergoes it 72# is important that any variables in entries use :U to guard 73# against surprises when undefined. 74# 75# TARGET_SPEC_VARS 76# The default value is just MACHINE, and for most environments 77# this is sufficient. The _DIRDEP_USE target actually sets 78# both MACHINE and TARGET_SPEC to the suffix of the current 79# target so that in the general case TARGET_SPEC can be ignored. 80# 81# If more than MACHINE is needed then sys.mk needs to decompose 82# TARGET_SPEC and set the relevant variables accordingly. 83# It is important that MACHINE be included in and actually be 84# the first member of TARGET_SPEC_VARS. This allows other 85# variables to be considered optional, and some of the treatment 86# below relies on MACHINE being the first entry. 87# Note: TARGET_SPEC cannot contain any '.'s so the target 88# triple used by compiler folk won't work (directly anyway). 89# 90# For example: 91# 92# # Always list MACHINE first, 93# # other variables might be optional. 94# TARGET_SPEC_VARS = MACHINE TARGET_OS 95# .if ${TARGET_SPEC:Uno:M*,*} != "" 96# _tspec := ${TARGET_SPEC:S/,/ /g} 97# MACHINE := ${_tspec:[1]} 98# TARGET_OS := ${_tspec:[2]} 99# # etc. 100# # We need to stop that TARGET_SPEC affecting any submakes 101# # and deal with MACHINE=${TARGET_SPEC} in the environment. 102# TARGET_SPEC = 103# # export but do not track 104# .export-env TARGET_SPEC 105# .export ${TARGET_SPEC_VARS} 106# .for v in ${TARGET_SPEC_VARS:O:u} 107# .if empty($v) 108# .undef $v 109# .endif 110# .endfor 111# .endif 112# # make sure we know what TARGET_SPEC is 113# # as we may need it to find Makefile.depend* 114# TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 115# 116# The following variables can influence the initial DIRDEPS 117# computation with regard to the TARGET_SPECs that will be 118# built. 119# Most should also be considered by init.mk 120# 121# ONLY_TARGET_SPEC_LIST 122# Defines a list of TARGET_SPECs for which the current 123# directory can be built. 124# If ALL_MACHINES is defined, we build for all the 125# TARGET_SPECs listed. 126# 127# ONLY_MACHINE_LIST 128# As for ONLY_TARGET_SPEC_LIST but only specifies 129# MACHINEs. 130# 131# NOT_TARGET_SPEC_LIST 132# A list of TARGET_SPECs for which the current 133# directory should not be built. 134# 135# NOT_MACHINE_LIST 136# A list of MACHINEs the current directory should not be 137# built for. 138# 139# DIRDEPS_EXPORT_VARS (DEP_EXPORT_VARS) 140# It is discouraged, but sometimes necessary for a 141# Makefile.depend file to influence the environment. 142# Doing this is correctly (especially if using DIRDEPS_CACHE) is 143# tricky so a Makefile.depend file can set DIRDEPS_EXPORT_VARS 144# and dirdeps.mk will do the deed: 145# 146# MK_UEFI = yes 147# DIRDEPS_EXPORT_VARS = MK_UEFI 148# 149# _build_xtra_dirs 150# local.dirdeps.mk can add targets to this variable. 151# They will be hooked into the build, but independent of 152# any other DIRDEP. 153# 154# This allows for adding TESTS to the build, such that the build 155# if any test fails, but without the risk of introducing 156# circular dependencies. 157 158now_utc ?= ${%s:L:localtime} 159.if !defined(start_utc) 160start_utc := ${now_utc} 161.endif 162 163.if !target(bootstrap) && (make(bootstrap) || \ 164 make(bootstrap-this) || \ 165 make(bootstrap-recurse) || \ 166 make(bootstrap-empty)) 167# disable most of below 168.MAKE.LEVEL = 1 169.endif 170 171# touch this at your peril 172_DIRDEP_USE_LEVEL?= 0 173.if ${.MAKE.LEVEL} == ${_DIRDEP_USE_LEVEL} 174# only the first instance is interested in all this 175 176# the first time we are included the _DIRDEP_USE target will not be defined 177# we can use this as a clue to do initialization and other one time things. 178.if !target(_DIRDEP_USE) 179 180# do some setup we only need once 181_CURDIR ?= ${.CURDIR} 182_OBJDIR ?= ${.OBJDIR} 183 184.if ${MAKEFILE:T} == ${.PARSEFILE} && empty(DIRDEPS) && ${.TARGETS:Uall:M*[/.]*} != "" 185# This little trick let's us do 186# 187# mk -f dirdeps.mk some/dir.${TARGET_SPEC} 188# 189all: 190${.TARGETS:Nall}: all 191DIRDEPS := ${.TARGETS:M*[/.]*} 192# so that -DNO_DIRDEPS works 193DEP_RELDIR := ${DIRDEPS:[1]:R} 194# this will become DEP_MACHINE below 195TARGET_MACHINE := ${DIRDEPS:[1]:E:C/,.*//} 196.if ${TARGET_MACHINE:N*/*} == "" 197TARGET_MACHINE := ${MACHINE} 198.endif 199# disable DIRDEPS_CACHE as it does not like this trick 200MK_DIRDEPS_CACHE = no 201# incase anyone needs to know 202_dirdeps_cmdline: 203.endif 204 205# make sure we get the behavior we expect 206.MAKE.SAVE_DOLLARS = no 207 208# make sure these are empty to start with 209_DEP_TARGET_SPEC = 210 211# If TARGET_SPEC_VARS is other than just MACHINE 212# it should be set by sys.mk or similar by now. 213# TARGET_SPEC must not contain any '.'s. 214TARGET_SPEC_VARS ?= MACHINE 215# we allow for this to be a subset 216TARGET_SPEC_VARS.host ?= MACHINE 217TARGET_SPEC_VARS.host32 = ${TARGET_SPEC_VARS.host} 218# this is what we started with 219TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 220# this is what we mostly use below 221DEP_TARGET_SPEC_VARS = ${TARGET_SPEC_VARS.${DEP_MACHINE}:U${TARGET_SPEC_VARS}} 222DEP_TARGET_SPEC = ${DEP_TARGET_SPEC_VARS:S,^,DEP_,:@v@${$v:U}@:ts,} 223# make sure we have defaults 224.for v in ${DEP_TARGET_SPEC_VARS} 225DEP_$v ?= ${$v} 226.endfor 227 228.if ${TARGET_SPEC_VARS:[#]} > 1 229# Ok, this gets more complex (putting it mildly). 230# In order to stay sane, we need to ensure that all the build_dirs 231# we compute below are fully qualified wrt DEP_TARGET_SPEC. 232# The makefiles may only partially specify (eg. MACHINE only), 233# so we need to construct a set of modifiers to fill in the gaps. 234_tspec_x := ${TARGET_SPEC_VARS:${M_RANGE:Urange}} 235# this handles unqualified entries 236M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC}; 237# there needs to be at least one item missing for these to make sense 238.for i in ${_tspec_x:[2..-1]} 239_tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,} 240_tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,} 241M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i}; 242.endfor 243TARGET_SPEC_VARSr := ${TARGET_SPEC_VARS:[-1..1]} 244.if ${TARGET_SPEC_VARS.host} == ${TARGET_SPEC_VARS} 245M_dep_qual_fixes.host = ${M_dep_qual_fixes} 246.elif ${TARGET_SPEC_VARS.host:[#]} > 1 247_htspec_x := ${TARGET_SPEC_VARS.host:${M_RANGE:Urange}} 248# this handles unqualified entries 249M_dep_qual_fixes.host = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC}; 250# there needs to be at least one item missing for these to make sense 251.for i in ${_htspec_x:[2..-1]} 252_htspec_m$i := ${TARGET_SPEC_VARS.host:[2..$i]:@w@[^,]+@:ts,} 253_htspec_a$i := ,${TARGET_SPEC_VARS.host:[$i..-1]:@v@$$$${DEP_$v}@:ts,} 254M_dep_qual_fixes.host += C;(\.${_htspec_m$i})$$;\1${_htspec_a$i}; 255.endfor 256.else 257M_dep_qual_fixes.host = U 258.endif 259.else 260# A harmless? default. 261M_dep_qual_fixes = U 262.endif 263M_dep_qual_fixes.host ?= ${M_dep_qual_fixes} 264M_dep_qual_fixes.host32 = ${M_dep_qual_fixes.host} 265 266.if !defined(.MAKE.DEPENDFILE_PREFERENCE) 267# .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater? 268# you really want this set by sys.mk or similar 269.MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T} 270.if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}" 271.if ${TARGET_SPEC} != ${MACHINE} 272.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}.$${MACHINE} 273.endif 274.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R} 275.endif 276.endif 277 278_default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T} 279_machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*} 280 281# for machine specific dependfiles we require ${MACHINE} to be at the end 282# also for the sake of sanity we require a common prefix 283.if !defined(.MAKE.DEPENDFILE_PREFIX) 284# knowing .MAKE.DEPENDFILE_PREFIX helps 285.if !empty(_machine_dependfiles) 286.MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R} 287.else 288.MAKE.DEPENDFILE_PREFIX := ${_default_dependfile:T} 289.endif 290.endif 291 292# turn a list into a set of :N modifiers 293# NskipFoo = ${Foo:${M_ListToSkip}} 294M_ListToSkip ?= O:u:S,^,N,:ts: 295 296# this is how we identify non-machine specific dependfiles 297N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}} 298 299# this gets reset for each dirdep we check 300DEP_RELDIR ?= ${RELDIR} 301 302# remember the initial value of DEP_RELDIR - we test for it below. 303_DEP_RELDIR := ${DEP_RELDIR} 304 305# this can cause lots of output! 306# set to a set of glob expressions that might match RELDIR 307DEBUG_DIRDEPS ?= no 308 309# make sure this target exists 310dirdeps: beforedirdeps .WAIT 311beforedirdeps: 312 313.endif # !target(_DIRDEP_USE) 314 315.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != "" 316_debug_reldir = 1 317.else 318_debug_reldir = 0 319.endif 320.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend depend:L:M$x}@} != "" 321_debug_search = 1 322.else 323_debug_search = 0 324.endif 325 326# First off, we want to know what ${MACHINE} to build for. 327# This can be complicated if we are using a mixture of ${MACHINE} specific 328# and non-specific Makefile.depend* 329 330# if we were included recursively _DEP_TARGET_SPEC should be valid. 331.if empty(_DEP_TARGET_SPEC) 332DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}} 333_DEP_TARGET_SPEC := ${DEP_TARGET_SPEC} 334.if ${.INCLUDEDFROMFILE:U:M${.MAKE.DEPENDFILE_PREFIX}*} != "" 335# record that we've read dependfile for this 336_dirdeps_checked.${_CURDIR}.${TARGET_SPEC}: 337.endif 338.endif 339 340# by now _DEP_TARGET_SPEC should be set, parse it. 341.if ${TARGET_SPEC_VARS:[#]} > 1 342# we need to parse DEP_MACHINE may or may not contain more info 343_tspec := ${_DEP_TARGET_SPEC:S/,/ /g} 344.for i in ${_tspec_x} 345DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]} 346.endfor 347.for v in ${DEP_TARGET_SPEC_VARS:O:u} 348.if empty(DEP_$v) 349.undef DEP_$v 350.endif 351.endfor 352.else 353DEP_MACHINE := ${_DEP_TARGET_SPEC} 354.endif 355 356# reset each time through 357_build_all_dirs = 358_build_xtra_dirs = 359 360# DIRDEPS_CACHE can be very handy for debugging. 361# Also if repeatedly building the same target, 362# we can avoid the overhead of re-computing the tree dependencies. 363MK_DIRDEPS_CACHE ?= no 364BUILD_DIRDEPS_CACHE ?= no 365BUILD_DIRDEPS ?= yes 366 367.if ${MK_DIRDEPS_CACHE} == "yes" 368# this is where we will cache all our work 369DIRDEPS_CACHE ?= ${_OBJDIR:tA}/dirdeps.cache${_TARGETS:U${.TARGETS}:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.} 370.endif 371 372# sanity check: Makefile.depend.options should *not* include us 373.if ${.INCLUDEDFROMFILE:U:M${.MAKE.DEPENDFILE_PREFIX}.options} != "" 374.error ${DEP_RELDIR}/${.MAKE.DEPENDFILE_PREFIX}.options: should include dirdeps-options.mk 375.endif 376 377# pickup customizations 378# as below you can use !target(_DIRDEP_USE) to protect things 379# which should only be done once. 380.-include <local.dirdeps.mk> 381 382.if !target(_DIRDEP_USE) 383# things we skip for host tools 384SKIP_HOSTDIR ?= 385 386NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}} 387 388# things we always skip 389# SKIP_DIRDEPS allows for adding entries on command line. 390SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS} 391SKIP_DIR.host += ${SKIP_HOSTDIR} 392 393DEP_SKIP_DIR = ${SKIP_DIR} \ 394 ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \ 395 ${TARGET_SPEC_VARS:@v@${SKIP_DIR.${DEP_$v}:U}@} \ 396 ${SKIP_DIRDEPS.${DEP_TARGET_SPEC}:U} \ 397 ${TARGET_SPEC_VARS:@v@${SKIP_DIRDEPS.${DEP_$v}:U}@} 398 399 400NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}} 401 402.if defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS) 403NO_DIRDEPS = 404.elif defined(WITHOUT_DIRDEPS_BELOW) 405NO_DIRDEPS_BELOW = 406.endif 407 408.if defined(NO_DIRDEPS) 409# confine ourselves to the original dir and below. 410DIRDEPS_FILTER += M${_DEP_RELDIR}* 411.elif defined(NO_DIRDEPS_BELOW) 412DIRDEPS_FILTER += M${_DEP_RELDIR} 413.endif 414 415# this is what we run below 416DIRDEP_MAKE ?= ${.MAKE} 417DIRDEP_DIR ?= ${.TARGET:R} 418# we normally want the default target 419DIRDEP_TARGETS ?= 420 421# if you want us to report load averages during build 422# DIRDEP_USE_PRELUDE += ${DIRDEP_LOADAVG_REPORT}; 423 424DIRDEP_LOADAVG_CMD ?= ${UPTIME:Uuptime} | sed 's,.*\(load\),\1,' 425DIRDEP_LOADAVG_LAST = 0 426# yes the expression here is a bit complicated, 427# the trick is to only eval ${DIRDEP_LOADAVG_LAST::=${now_utc}} 428# when we want to report. 429# Note: expr(1) will exit 1 if the expression evaluates to 0 430# hence the || true 431DIRDEP_LOADAVG_REPORT = \ 432 test -z "${"${expr ${now_utc} - ${DIRDEP_LOADAVG_INTERVAL:U60} - ${DIRDEP_LOADAVG_LAST} || true:L:sh:N-*}":?yes${DIRDEP_LOADAVG_LAST::=${now_utc}}:}" || \ 433 echo "${TRACER}`${DIRDEP_LOADAVG_CMD}`" 434 435# we suppress SUBDIR when visiting the leaves 436# we assume sys.mk will set MACHINE_ARCH 437# you can add extras to DIRDEP_USE_ENV 438# if there is no makefile in the target directory, we skip it. 439_DIRDEP_USE: .USE .MAKE 440 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \ 441 test -s ${.TARGET:R}/$$m || continue; \ 442 echo "${TRACER}Checking ${.TARGET:S,^${SRCTOP}/,,} for ${.TARGET:E} ..."; \ 443 ${DIRDEP_USE_PRELUDE} \ 444 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \ 445 TARGET_SPEC=${.TARGET:E} \ 446 MACHINE=${.TARGET:E} \ 447 ${DIRDEP_MAKE} -C ${DIRDEP_DIR} ${DIRDEP_TARGETS} || exit 1; \ 448 break; \ 449 done 450 451.ifdef ALL_MACHINES 452.if empty(ONLY_TARGET_SPEC_LIST) && empty(ONLY_MACHINE_LIST) 453# we start with everything 454_machine_list != echo; 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}* 2> /dev/null 455 456# some things we know we want to ignore 457DIRDEPS_TARGETS_SKIP_LIST += \ 458 *~ \ 459 *.bak \ 460 *.inc \ 461 *.old \ 462 *.options \ 463 *.orig \ 464 *.rej \ 465 466# first trim things we know we want to skip 467# and provide canonical form 468_machine_list := ${_machine_list:${DIRDEPS_TARGETS_SKIP_LIST:${M_ListToSkip}}:T:E} 469 470# cater for local complexities 471# local.dirdeps.mk can set 472# DIRDEPS_ALL_MACHINES_FILTER and 473# DIRDEPS_ALL_MACHINES_FILTER_XTRAS for final tweaks 474 475.if !empty(ALL_TARGET_SPEC_LIST) 476.if ${_debug_reldir} 477.info ALL_TARGET_SPEC_LIST=${ALL_TARGET_SPEC_LIST} 478.endif 479DIRDEPS_ALL_MACHINES_FILTER += \ 480 @x@$${ALL_TARGET_SPEC_LIST:@s@$${x:M$$s}@}@ 481.elif !empty(ALL_MACHINE_LIST) 482.if ${_debug_reldir} 483.info ALL_MACHINE_LIST=${ALL_MACHINE_LIST} 484.endif 485.if ${TARGET_SPEC_VARS:[#]} > 1 486# the space below can result in extraneous ':' 487DIRDEPS_ALL_MACHINES_FILTER += \ 488 @x@$${ALL_MACHINE_LIST:@m@$${x:M$$m,*} $${x:M$$m}@}@ 489.else 490DIRDEPS_ALL_MACHINES_FILTER += \ 491 @x@$${ALL_MACHINE_LIST:@m@$${x:M$$m}@}@ 492.endif 493.endif 494# add local XTRAS - default to something benign 495DIRDEPS_ALL_MACHINES_FILTER += \ 496 ${DIRDEPS_ALL_MACHINES_FILTER_XTRAS:UNbak} 497 498.if ${_debug_reldir} 499.info _machine_list=${_machine_list} 500.info DIRDEPS_ALL_MACHINES_FILTER=${DIRDEPS_ALL_MACHINES_FILTER} 501.endif 502 503_only_machines := ${_machine_list:${DIRDEPS_ALL_MACHINES_FILTER:ts:}:S,:, ,g} 504.else 505_only_machines := ${ONLY_TARGET_SPEC_LIST:U} ${ONLY_MACHINE_LIST:U} 506.endif 507 508.if empty(_only_machines) 509# we must be boot-strapping 510_only_machines := ${TARGET_MACHINE:U${ALL_TARGET_SPEC_LIST:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}}} 511.endif 512 513# cleanup the result 514_only_machines := ${_only_machines:O:u} 515 516.if ${_debug_reldir} 517.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: ALL_MACHINES _only_machines=${_only_machines} 518.endif 519 520.else # ! ALL_MACHINES 521# if ONLY_TARGET_SPEC_LIST or ONLY_MACHINE_LIST is set, we are limited to that. 522# Note that ONLY_TARGET_SPEC_LIST should be fully qualified. 523# if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST 524# otherwise DEP_MACHINE is it - so DEP_MACHINE will match. 525_only_machines := ${ONLY_TARGET_SPEC_LIST:U:M${DEP_MACHINE},*} 526.if empty(_only_machines) 527_only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}} 528.endif 529.endif 530 531.if !empty(NOT_MACHINE_LIST) 532_only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}} 533.endif 534.if !empty(NOT_TARGET_SPEC_LIST) 535# we must first qualify 536_dm := ${DEP_MACHINE} 537_only_machines := ${_only_machines:M*,*} ${_only_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 538DEP_MACHINE := ${_dm} 539_only_machines := ${_only_machines:${NOT_TARGET_SPEC_LIST:${M_ListToSkip}}} 540.endif 541# clean up 542_only_machines := ${_only_machines:O:u} 543 544.if ${_debug_reldir} 545.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _only_machines=${_only_machines} 546.endif 547 548# make sure we have a starting place? 549DIRDEPS ?= ${RELDIR} 550.endif # target 551 552.if !defined(NO_DIRDEPS) && !defined(NO_DIRDEPS_BELOW) 553.if ${MK_DIRDEPS_CACHE} == "yes" 554 555# just ensure this exists 556build-dirdeps: 557 558M_oneperline = @x@\\${.newline} $$x@ 559 560.if ${BUILD_DIRDEPS_CACHE} == "no" 561.if !target(dirdeps-cached) 562# we do this via sub-make 563BUILD_DIRDEPS = no 564 565# ignore anything but these 566.MAKE.META.IGNORE_FILTER = M*/${.MAKE.DEPENDFILE_PREFIX}* 567 568dirdeps: dirdeps-cached 569dirdeps-cached: ${DIRDEPS_CACHE} .MAKE 570 @echo "${TRACER}Using ${DIRDEPS_CACHE}" 571 @MAKELEVEL=${.MAKE.LEVEL} \ 572 TARGET_SPEC=${TARGET_SPEC} \ 573 ${TARGET_SPEC_VARS:@v@$v=${$v}@} \ 574 ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \ 575 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no 576 577# leaf makefiles rarely work for building DIRDEPS_CACHE 578.if ${RELDIR} != "." 579BUILD_DIRDEPS_MAKEFILE ?= -f dirdeps.mk 580.endif 581 582# these should generally do 583BUILD_DIRDEPS_MAKEFILE ?= 584BUILD_DIRDEPS_TARGETS ?= ${.TARGETS} 585 586.if ${DIRDEPS_CACHE} != ${STATIC_DIRDEPS_CACHE:Uno} && ${DIRDEPS_CACHE:M${SRCTOP}/*} == "" 587# export this for dirdeps-cache-update.mk 588DYNAMIC_DIRDEPS_CACHE := ${DIRDEPS_CACHE} 589.export DYNAMIC_DIRDEPS_CACHE 590# we need the .meta file to ensure we update if 591# any of the Makefile.depend* changed. 592# We do not want to compare the command line though. 593${DIRDEPS_CACHE}: .META .NOMETA_CMP 594 +@{ echo '# Autogenerated - do NOT edit!'; echo; \ 595 echo 'BUILD_DIRDEPS=no'; echo; \ 596 echo '.include <dirdeps.mk>'; echo; \ 597 } > ${.TARGET}.new 598 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \ 599 DIRDEPS="${DIRDEPS}" \ 600 TARGET_SPEC=${TARGET_SPEC} \ 601 MAKEFLAGS= ${DIRDEP_CACHE_MAKE:U${.MAKE}} -C ${_CURDIR} \ 602 ${BUILD_DIRDEPS_MAKEFILE} \ 603 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \ 604 .MAKE.DEPENDFILE=.none \ 605 ${"${DEBUG_DIRDEPS:Nno}":?DEBUG_DIRDEPS='${DEBUG_DIRDEPS}':} \ 606 ${.MAKEFLAGS:tW:S,-D ,-D,g:tw:M*WITH*} \ 607 ${.MAKEFLAGS:tW:S,-d ,-d,g:tw:M-d*} \ 608 3>&1 1>&2 | sed 's,${SRCTOP},_{SRCTOP},g;s,_{SRCTOP}/_{SRCTOP},_{SRCTOP},g;s,_{,$${,g' >> ${.TARGET}.new && \ 609 mv ${.TARGET}.new ${.TARGET} 610 611.endif 612.endif 613.elif !target(_count_dirdeps) 614# we want to capture the dirdeps count in the cache 615.END: _count_dirdeps 616_count_dirdeps: .NOMETA 617 @{ echo; echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} ${DIRDEP_INFO_XTRAS}'; } >&3 618 619.endif 620.elif !make(dirdeps) && !target(_count_dirdeps) 621beforedirdeps: _count_dirdeps 622_count_dirdeps: .NOMETA 623 @echo "${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} ${DIRDEP_INFO_XTRAS} seconds=`expr ${now_utc} - ${start_utc}`" 624 625.endif 626.endif 627 628.if ${BUILD_DIRDEPS} == "yes" 629 630# the rest is done repeatedly for every Makefile.depend we read. 631# if we are anything but the original dir we care only about the 632# machine type we were included for.. 633 634.if ${DEP_RELDIR} == "." 635_this_dir := ${SRCTOP} 636.else 637_this_dir := ${SRCTOP}/${DEP_RELDIR} 638.endif 639 640# on rare occasions, there can be a need for extra help 641_dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc 642.-include <${_dep_hack}> 643.-include <${_dep_hack:R}.options> 644 645.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC} 646# this should be all 647_machines := ${DEP_MACHINE} 648.else 649# this is the machine list we actually use below 650_machines := ${_only_machines} 651 652.if defined(HOSTPROG) || ${DEP_MACHINE:Nhost*} == "" 653# we need to build this guy's dependencies for host as well. 654.if ${DEP_MACHINE:Nhost*} == "" 655_machines += ${DEP_MACHINE} 656.else 657_machines += host 658.endif 659.endif 660 661_machines := ${_machines:O:u} 662.endif 663 664.if ${DEP_TARGET_SPEC_VARS:[#]} > 1 665# we need to tweak _machines 666_dm := ${DEP_MACHINE} 667# apply the same filtering that we do when qualifying DIRDEPS. 668# M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.' 669# Again we expect that any already qualified machines are fully qualified. 670_machines := ${_machines:M*,*} ${_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:S,^.,,} 671DEP_MACHINE := ${_dm} 672_machines := ${_machines:${M_dep_qual_fixes.${DEP_MACHINE}:U${M_dep_qual_fixes}:ts:}:O:u} 673.endif 674 675# reset each time through 676_build_dirs = 677 678.if ${DEP_RELDIR} == ${_DEP_RELDIR} && ${_CURDIR} != ${SRCTOP} 679# pickup other machines for this dir if necessary 680_build_dirs += ${_machines:@m@${_CURDIR}.$m@} 681.endif 682 683.if ${_debug_reldir} 684.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: nDIRDEPS=${DIRDEPS:[#]} 685.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS=${DIRDEPS:${DEBUG_DIRDEPS_LIST_FILTER:U:N/:ts:}} 686.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}' 687.endif 688 689.if !empty(DIRDEPS) 690# these we reset each time through as they can depend on DEP_MACHINE 691DEP_DIRDEPS_FILTER = \ 692 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \ 693 ${TARGET_SPEC_VARS:@v@${DIRDEPS_FILTER.${DEP_$v}:U}@} \ 694 ${DIRDEPS_FILTER:U} 695.if empty(DEP_DIRDEPS_FILTER) 696# something harmless 697DEP_DIRDEPS_FILTER = U 698.endif 699 700# this is what we start with 701__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@} 702 703# some entries may be qualified with .<machine> or .<target_spec> 704# we can tell the unqualified ones easily - because they exist 705__unqual_depdirs := ${__depdirs:@d@${exists($d):?$d:}@} 706__qual_depdirs := ${__depdirs:${__unqual_depdirs:Uno:${M_ListToSkip}}} 707 708.if ${DEP_RELDIR} == ${_DEP_RELDIR} 709# if it was called out - we likely need it. 710__hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} \ 711 ${DPADD:U.:M${HOST_OBJTOP32:Uno}/*:S,${HOST_OBJTOP32:Uno}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host32,:N.*:@d@${SRCTOP}/$d@} 712__qual_depdirs += ${__hostdpadd} 713.endif 714 715.if ${_debug_reldir} 716.info DEP_DIRDEPS_FILTER=${DEP_DIRDEPS_FILTER:ts:} 717.info depdirs=${__depdirs:S,^${SRCTOP}/,,:${DEBUG_DIRDEPS_LIST_FILTER:U:N/:ts:}} 718.info qualified=${__qual_depdirs:S,^${SRCTOP}/,,:${DEBUG_DIRDEPS_LIST_FILTER:U:N/:ts:}} 719.info unqualified=${__unqual_depdirs:S,^${SRCTOP}/,,:${DEBUG_DIRDEPS_LIST_FILTER:U:N/:ts:}} 720.endif 721 722# _build_dirs is what we will feed to _DIRDEP_USE 723_build_dirs += \ 724 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \ 725 ${__qual_depdirs:N*.host} \ 726 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \ 727 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@} 728 729# qualify everything now 730.if ${_debug_reldir} 731.info _build_dirs=${_build_dirs:${DEBUG_DIRDEPS_LIST_FILTER:U:N/:ts:}} 732.endif 733# make sure we do not mess with qualifying "host" entries 734_build_dirs := ${_build_dirs:M*.host*:${M_dep_qual_fixes.host:ts:}} \ 735 ${_build_dirs:N*.host*:${M_dep_qual_fixes:ts:}} 736_build_dirs := ${_build_dirs:O:u} 737.if ${_debug_reldir} 738.info _build_dirs=${_build_dirs:${DEBUG_DIRDEPS_LIST_FILTER:U:N/:ts:}} 739.endif 740 741.endif # empty DIRDEPS 742 743_build_all_dirs += ${_build_dirs} ${_build_xtra_dirs} 744_build_all_dirs := ${_build_all_dirs:O:u} 745 746# Normally if doing make -V something, 747# we do not want to waste time chasing DIRDEPS 748# but if we want to count the number of Makefile.depend* read, we do. 749.if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS:U}} == "" 750.if !empty(_build_all_dirs) 751.if ${BUILD_DIRDEPS_CACHE} == "yes" 752# we use _cache_script to minimize the number of times we fork the shell 753_cache_script = echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; 754# guard against _new_dirdeps being too big for a single command line 755_new_dirdeps := ${_build_all_dirs:@x@${target($x):?:$x}@:S,^${SRCTOP}/,,} 756_cache_xtra_deps := ${_build_xtra_dirs:S,^${SRCTOP}/,,} 757.export _cache_xtra_deps _new_dirdeps 758.if !empty(DIRDEPS_EXPORT_VARS) || !empty(DEP_EXPORT_VARS) 759# Discouraged, but there are always exceptions. 760# Handle it here rather than explain how. 761DIRDEPS_EXPORT_VARS ?= ${DEP_EXPORT_VARS} 762_cache_xvars := echo; ${DIRDEPS_EXPORT_VARS:@v@echo '$v = ${$v}';@} echo '.export ${DIRDEPS_EXPORT_VARS}'; echo; 763_cache_script += ${_cache_xvars} 764.endif 765.else 766# this makes it all happen 767dirdeps: ${_build_all_dirs} 768.endif 769${_build_all_dirs}: _DIRDEP_USE 770 771.if ${_debug_reldir} 772.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs:S,^${SRCTOP}/,,:${DEBUG_DIRDEPS_LIST_FILTER:U:N/:ts:}} 773.endif 774 775.if !empty(DIRDEPS_EXPORT_VARS) || !empty(DEP_EXPORT_VARS) 776.export ${DIRDEPS_EXPORT_VARS} ${DEP_EXPORT_VARS} 777DIRDEPS_EXPORT_VARS = 778DEP_EXPORT_VARS = 779.endif 780 781# this builds the dependency graph 782.for m in ${_machines} 783.if ${BUILD_DIRDEPS_CACHE} == "yes" && !empty(_build_dirs) 784_cache_deps = 785_cache_script += echo; echo 'DIRDEPS.${_this_dir}.$m = \'; 786.endif 787# it would be nice to do :N${.TARGET} 788.if !empty(__qual_depdirs) 789.for q in ${__qual_depdirs:M*.host*:${M_dep_qual_fixes.host:ts:}:E:O:u:N$m} \ 790 ${__qual_depdirs:N*.host*:${M_dep_qual_fixes:ts:}:E:O:u:N$m} 791.if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != "" 792.info ${DEP_RELDIR}.$m: q=$q graph: ${_build_dirs:M*.$q:S,^${SRCTOP}/,,} 793.endif 794.if ${BUILD_DIRDEPS_CACHE} == "yes" 795_cache_deps += ${_build_dirs:M*.$q:S,^${SRCTOP}/,,} 796.else 797${_this_dir}.$m: ${_build_dirs:M*.$q} 798.endif 799.endfor 800.endif 801.if ${_debug_reldir} 802.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m:S,^${SRCTOP}/,,} 803.endif 804.if ${BUILD_DIRDEPS_CACHE} == "yes" 805.if !empty(_build_dirs) 806_cache_deps += ${_build_dirs:M*.$m:N${_this_dir}.$m:S,^${SRCTOP}/,,} 807.if !empty(_cache_deps) 808.export _cache_deps 809_cache_script += for x in $$_cache_deps; do echo " _{SRCTOP}/$$x \\"; done; 810.endif 811# anything in _{build,env}_xtra_dirs is hooked to dirdeps: only 812x!= echo; { echo; ${_cache_script} echo; echo '${_this_dir}.$m: $${DIRDEPS.${_this_dir}.$m}'; \ 813 echo; echo 'dirdeps: ${_this_dir}.$m \'; \ 814 for x in $$_cache_xtra_deps; do echo " _{SRCTOP}/$$x \\"; done; \ 815 echo; for x in $$_new_dirdeps; do echo "_{SRCTOP}/$$x: _DIRDEP_USE"; done; } >&3 816.endif 817.else 818${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m} 819.endif 820.endfor 821 822.endif 823 824# Now find more dependencies - and recurse. 825.for d in ${_build_all_dirs} 826.if !target(_dirdeps_checked.$d) 827# once only 828_dirdeps_checked.$d: 829_dr := ${d:S,^${SRCTOP}/,,} 830.if ${_debug_search} 831.info checking ${_dr} 832.endif 833# Note: _build_all_dirs is fully qualifed so d:R is always the directory 834.if exists(${d:R}) 835# we pass _DEP_TARGET_SPEC to tell the next step what we want 836_DEP_TARGET_SPEC := ${d:E} 837# some makefiles may still look at this 838_DEP_MACHINE := ${d:E:C/,.*//} 839DEP_MACHINE := ${_DEP_MACHINE} 840# set these too in case Makefile.depend* uses them 841.if ${DEP_TARGET_SPEC_VARS:[#]} > 1 842_dtspec := ${_DEP_TARGET_SPEC:S/,/ /g} 843.for i in ${_tspec_x} 844DEP_${DEP_TARGET_SPEC_VARS:[$i]} := ${_dtspec:[$i]} 845.endfor 846.endif 847# Warning: there is an assumption here that MACHINE is always 848# the first entry in TARGET_SPEC_VARS. 849# If TARGET_SPEC and MACHINE are insufficient, you have a problem. 850_m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:C;${MACHINE}((,.+)?)$;${d:E:C/,.*//}\1;:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]} 851.if !empty(_m) 852# M_dep_qual_fixes isn't geared to Makefile.depend 853_qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes.${d:E}:U${M_dep_qual_fixes}:ts:}} 854.if ${_debug_search} 855.info Looking for ${_qm} 856.endif 857# set this "just in case" 858# we can skip :tA since we computed the path above 859DEP_RELDIR := ${_m:H:S,^${SRCTOP}/,,} 860# and reset this 861DIRDEPS = 862.if ${_debug_reldir} && ${_qm} != ${_m} 863.info loading ${_m:S,${SRCTOP}/,,} for ${_dr} 864.endif 865.include <${_m}> 866.else 867# set these as if we found Makefile.depend* 868DEP_RELDIR := ${_dr:R} 869DIRDEPS = 870.if ${_debug_reldir} 871.info loading local.dirdeps-missing.mk for ${_dr} 872.endif 873.-include <local.dirdeps-missing.mk> 874.endif 875.endif 876.endif 877.endfor 878 879.endif # -V 880.endif # BUILD_DIRDEPS 881 882.elif ${.MAKE.LEVEL} > 42 883.error You should have stopped recursing by now. 884.else 885# we are building something 886DEP_RELDIR := ${RELDIR} 887_DEP_RELDIR := ${RELDIR} 888# Since we are/should be included by .MAKE.DEPENDFILE 889# This is a final opportunity to add/hook global rules. 890.-include <local.dirdeps-build.mk> 891 892# skip _reldir_{finish,failed} if not included from Makefile.depend* 893# or not in meta mode 894.if !defined(WITHOUT_META_STATS) && ${.INCLUDEDFROMFILE:U:M${.MAKE.DEPENDFILE_PREFIX}*} != "" && ${.MAKE.MODE:Mmeta} != "" 895 896meta_stats= meta=${empty(.MAKE.META.FILES):?0:${.MAKE.META.FILES:[#]}} \ 897 created=${empty(.MAKE.META.CREATED):?0:${.MAKE.META.CREATED:[#]}} 898 899.if !target(_reldir_finish) 900.END: _reldir_finish 901_reldir_finish: .NOMETA 902 @echo "${TRACER}Finished ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 903.endif 904 905.if !target(_reldir_failed) 906.ERROR: _reldir_failed 907_reldir_failed: .NOMETA 908 @echo "${TRACER}Failed ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 909.endif 910 911.endif 912 913# pickup local dependencies 914.if ${MAKE_VERSION} < 20160220 915.-include <.depend> 916.else 917.dinclude <.depend> 918.endif 919.endif 920 921# bootstrapping new dependencies made easy? 922.if !target(bootstrap-empty) 923.if !target(bootstrap) && (make(bootstrap) || \ 924 make(bootstrap-this) || \ 925 make(bootstrap-recurse) || \ 926 make(bootstrap-empty)) 927 928# if we are bootstrapping create the default 929_want = ${.CURDIR}/${.MAKE.DEPENDFILE_DEFAULT:T} 930 931.if exists(${_want}) 932# stop here 933${.TARGETS:Mboot*}: 934.elif !make(bootstrap-empty) 935# find a Makefile.depend to use as _src 936_src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo 937.if empty(_src) 938.error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T}${.newline}Use: bootstrap-empty 939.endif 940 941_src?= ${.MAKE.DEPENDFILE} 942 943.MAKE.DEPENDFILE_BOOTSTRAP_SED+= -e 's/${_src:E:C/,.*//}/${MACHINE}/g' 944 945# just create Makefile.depend* for this dir 946bootstrap-this: .NOTMAIN 947 @echo Bootstrapping ${RELDIR}/${_want:T} from ${_src:T}; \ 948 echo You need to build ${RELDIR} to correctly populate it. 949.if ${_src:T} != ${.MAKE.DEPENDFILE_PREFIX:T} 950 (cd ${.CURDIR} && sed ${.MAKE.DEPENDFILE_BOOTSTRAP_SED} ${_src} > ${_want:T}) 951.else 952 cp ${.CURDIR}/${_src:T} ${_want} 953.endif 954 955# create Makefile.depend* for this dir and its dependencies 956bootstrap: bootstrap-recurse 957bootstrap-recurse: bootstrap-this 958 959_mf := ${.PARSEFILE} 960bootstrap-recurse: .NOTMAIN .MAKE 961 @cd ${SRCTOP} && \ 962 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \ 963 test -d $$d || d=$${d%.*}; \ 964 test -d $$d || continue; \ 965 echo "Checking $$d for bootstrap ..."; \ 966 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \ 967 done 968 969.endif 970 971# create an empty Makefile.depend* to get the ball rolling. 972bootstrap-empty: .NOTMAIN .NOMETA 973 @echo Creating empty ${RELDIR}/${_want:T}; \ 974 echo You need to build ${RELDIR} to correctly populate it. 975 @{ echo DIRDEPS=; echo ".include <dirdeps.mk>"; } > ${_want} 976 977.endif 978.endif 979