diff options
Diffstat (limited to 'share/mk/dirdeps.mk')
| -rw-r--r-- | share/mk/dirdeps.mk | 652 |
1 files changed, 652 insertions, 0 deletions
diff --git a/share/mk/dirdeps.mk b/share/mk/dirdeps.mk new file mode 100644 index 000000000000..c3c19d22d0a0 --- /dev/null +++ b/share/mk/dirdeps.mk @@ -0,0 +1,652 @@ +# $FreeBSD$ +# $Id: dirdeps.mk,v 1.54 2015/06/08 20:55:11 sjg Exp $ + +# Copyright (c) 2010-2013, Juniper Networks, Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +# Much of the complexity here is for supporting cross-building. +# If a tree does not support that, simply using plain Makefile.depend +# should provide sufficient clue. +# Otherwise the recommendation is to use Makefile.depend.${MACHINE} +# as expected below. + +# Note: this file gets multiply included. +# This is what we do with DIRDEPS + +# DIRDEPS: +# This is a list of directories - relative to SRCTOP, it is +# normally only of interest to .MAKE.LEVEL 0. +# In some cases the entry may be qualified with a .<machine> +# or .<target_spec> suffix (see TARGET_SPEC_VARS below), +# for example to force building something for the pseudo +# machines "host" or "common" regardless of current ${MACHINE}. +# +# All unqualified entries end up being qualified with .${TARGET_SPEC} +# and partially qualified (if TARGET_SPEC_VARS has multiple +# entries) are also expanded to a full .<target_spec>. +# The _DIRDEP_USE target uses the suffix to set TARGET_SPEC +# correctly when visiting each entry. +# +# The fully qualified directory entries are used to construct a +# dependency graph that will drive the build later. +# +# Also, for each fully qualified directory target, we will search +# using ${.MAKE.DEPENDFILE_PREFERENCE} to find additional +# dependencies. We use Makefile.depend (default value for +# .MAKE.DEPENDFILE_PREFIX) to refer to these makefiles to +# distinguish them from others. +# +# Each Makefile.depend file sets DEP_RELDIR to be the +# the RELDIR (path relative to SRCTOP) for its directory, and +# since each Makefile.depend file includes dirdeps.mk, this +# processing is recursive and results in .MAKE.LEVEL 0 learning the +# dependencies of the tree wrt the initial directory (_DEP_RELDIR). +# +# BUILD_AT_LEVEL0 +# Indicates whether .MAKE.LEVEL 0 builds anything: +# if "no" sub-makes are used to build everything, +# if "yes" sub-makes are only used to build for other machines. +# It is best to use "no", but this can require fixing some +# makefiles to not do anything at .MAKE.LEVEL 0. +# +# TARGET_SPEC_VARS +# The default value is just MACHINE, and for most environments +# this is sufficient. The _DIRDEP_USE target actually sets +# both MACHINE and TARGET_SPEC to the suffix of the current +# target so that in the general case TARGET_SPEC can be ignored. +# +# If more than MACHINE is needed then sys.mk needs to decompose +# TARGET_SPEC and set the relevant variables accordingly. +# It is important that MACHINE be included in and actually be +# the first member of TARGET_SPEC_VARS. This allows other +# variables to be considered optional, and some of the treatment +# below relies on MACHINE being the first entry. +# Note: TARGET_SPEC cannot contain any '.'s so the target +# triple used by compiler folk won't work (directly anyway). +# +# For example: +# +# # Always list MACHINE first, +# # other variables might be optional. +# TARGET_SPEC_VARS = MACHINE TARGET_OS +# .if ${TARGET_SPEC:Uno:M*,*} != "" +# _tspec := ${TARGET_SPEC:S/,/ /g} +# MACHINE := ${_tspec:[1]} +# TARGET_OS := ${_tspec:[2]} +# # etc. +# # We need to stop that TARGET_SPEC affecting any submakes +# # and deal with MACHINE=${TARGET_SPEC} in the environment. +# TARGET_SPEC = +# # export but do not track +# .export-env TARGET_SPEC +# .export ${TARGET_SPEC_VARS} +# .for v in ${TARGET_SPEC_VARS:O:u} +# .if empty($v) +# .undef $v +# .endif +# .endfor +# .endif +# # make sure we know what TARGET_SPEC is +# # as we may need it to find Makefile.depend* +# TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} +# + +# touch this at your peril +_DIRDEP_USE_LEVEL?= 0 +.if ${.MAKE.LEVEL} == ${_DIRDEP_USE_LEVEL} +# only the first instance is interested in all this + +# First off, we want to know what ${MACHINE} to build for. +# This can be complicated if we are using a mixture of ${MACHINE} specific +# and non-specific Makefile.depend* + +.if !target(_DIRDEP_USE) +# do some setup we only need once +_CURDIR ?= ${.CURDIR} +_OBJDIR ?= ${.OBJDIR} + +now_utc = ${%s:L:gmtime} +.if !defined(start_utc) +start_utc := ${now_utc} +.endif + +# make sure these are empty to start with +_DEP_TARGET_SPEC = +_DIRDEP_CHECKED = + +# If TARGET_SPEC_VARS is other than just MACHINE +# it should be set by sys.mk or similar by now. +# TARGET_SPEC must not contain any '.'s. +TARGET_SPEC_VARS ?= MACHINE +# this is what we started with +TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} +# this is what we mostly use below +DEP_TARGET_SPEC = ${TARGET_SPEC_VARS:S,^,DEP_,:@v@${$v:U}@:ts,} +# make sure we have defaults +.for v in ${TARGET_SPEC_VARS} +DEP_$v ?= ${$v} +.endfor + +.if ${TARGET_SPEC_VARS:[#]} > 1 +# Ok, this gets more complex (putting it mildly). +# In order to stay sane, we need to ensure that all the build_dirs +# we compute below are fully qualified wrt DEP_TARGET_SPEC. +# The makefiles may only partially specify (eg. MACHINE only), +# so we need to construct a set of modifiers to fill in the gaps. +# jot 10 should output 1 2 3 .. 10 +JOT ?= jot +_tspec_x := ${${JOT} ${TARGET_SPEC_VARS:[#]}:L:sh} +# this handles unqualified entries +M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC}; +# there needs to be at least one item missing for these to make sense +.for i in ${_tspec_x:[2..-1]} +_tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,} +_tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,} +M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i}; +.endfor +.else +# A harmless? default. +M_dep_qual_fixes = U +.endif + +.if !defined(.MAKE.DEPENDFILE_PREFERENCE) +# .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater? +# you really want this set by sys.mk or similar +.MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T} +.if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}" +.if ${TARGET_SPEC} != ${MACHINE} +.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}.$${MACHINE} +.endif +.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R} +.endif +.endif + +_default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T} +_machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*} + +# for machine specific dependfiles we require ${MACHINE} to be at the end +# also for the sake of sanity we require a common prefix +.if !defined(.MAKE.DEPENDFILE_PREFIX) +# knowing .MAKE.DEPENDFILE_PREFIX helps +.if !empty(_machine_dependfiles) +.MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R} +.else +.MAKE.DEPENDFILE_PREFIX := ${_default_dependfile:T} +.endif +.endif + + +# this is how we identify non-machine specific dependfiles +N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}} + +.endif # !target(_DIRDEP_USE) + +# if we were included recursively _DEP_TARGET_SPEC should be valid. +.if empty(_DEP_TARGET_SPEC) +# we may or may not have included a dependfile yet +.if defined(.INCLUDEDFROMFILE) +_last_dependfile := ${.INCLUDEDFROMFILE:M${.MAKE.DEPENDFILE_PREFIX}*} +.else +_last_dependfile := ${.MAKE.MAKEFILES:M*/${.MAKE.DEPENDFILE_PREFIX}*:[-1]} +.endif +.if ${_debug_reldir:U0} +.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _last_dependfile='${_last_dependfile}' +.endif + +.if empty(_last_dependfile) || ${_last_dependfile:E:${N_notmachine}} == "" +# this is all we have to work with +DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}} +_DEP_TARGET_SPEC := ${DEP_TARGET_SPEC} +.else +_DEP_TARGET_SPEC = ${_last_dependfile:${M_dep_qual_fixes:ts:}:E} +.endif +.if !empty(_last_dependfile) +# record that we've read dependfile for this +_DIRDEP_CHECKED += ${_CURDIR}.${TARGET_SPEC} +.endif +.endif + +# by now _DEP_TARGET_SPEC should be set, parse it. +.if ${TARGET_SPEC_VARS:[#]} > 1 +# we need to parse DEP_MACHINE may or may not contain more info +_tspec := ${_DEP_TARGET_SPEC:S/,/ /g} +.for i in ${_tspec_x} +DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]} +.endfor +.for v in ${TARGET_SPEC_VARS:O:u} +.if empty(DEP_$v) +.undef DEP_$v +.endif +.endfor +.else +DEP_MACHINE := ${_DEP_TARGET_SPEC} +.endif + +# pickup customizations +# as below you can use !target(_DIRDEP_USE) to protect things +# which should only be done once. +.-include "local.dirdeps.mk" + +# the first time we are included the _DIRDEP_USE target will not be defined +# we can use this as a clue to do initialization and other one time things. +.if !target(_DIRDEP_USE) +# make sure this target exists +dirdeps: beforedirdeps .WAIT +beforedirdeps: + +# We normally expect to be included by Makefile.depend.* +# which sets the DEP_* macros below. +DEP_RELDIR ?= ${RELDIR} + +# this can cause lots of output! +# set to a set of glob expressions that might match RELDIR +DEBUG_DIRDEPS ?= no + +# remember the initial value of DEP_RELDIR - we test for it below. +_DEP_RELDIR := ${DEP_RELDIR} + +# things we skip for host tools +SKIP_HOSTDIR ?= + +NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}} + +# things we always skip +# SKIP_DIRDEPS allows for adding entries on command line. +SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS} +SKIP_DIR.host += ${SKIP_HOSTDIR} + +DEP_SKIP_DIR = ${SKIP_DIR} \ + ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \ + ${SKIP_DIR.${DEP_MACHINE}:U} \ + ${SKIP_DIRDEPS.${DEP_MACHINE}:U} + +NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}} + +.if defined(NO_DIRDEPS) || defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS) +# confine ourselves to the original dir +DIRDEPS_FILTER += M${_DEP_RELDIR}* +.endif + +# this is what we run below +DIRDEP_MAKE?= ${.MAKE} + +# we suppress SUBDIR when visiting the leaves +# we assume sys.mk will set MACHINE_ARCH +# you can add extras to DIRDEP_USE_ENV +# if there is no makefile in the target directory, we skip it. +_DIRDEP_USE: .USE .MAKE + @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \ + test -s ${.TARGET:R}/$$m || continue; \ + echo "${TRACER}Checking ${.TARGET:R} for ${.TARGET:E} ..."; \ + MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \ + TARGET_SPEC=${.TARGET:E} \ + MACHINE=${.TARGET:E} \ + ${DIRDEP_MAKE} -C ${.TARGET:R} || exit 1; \ + break; \ + done + +.ifdef ALL_MACHINES +# this is how you limit it to only the machines we have been built for +# previously. +.if empty(ONLY_MACHINE_LIST) +.if !empty(ALL_MACHINE_LIST) +# ALL_MACHINE_LIST is the list of all legal machines - ignore anything else +_machine_list != cd ${_CURDIR} && 'ls' -1 ${ALL_MACHINE_LIST:O:u:@m@${.MAKE.DEPENDFILE:T:R}.$m@} 2> /dev/null; echo +.else +_machine_list != 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.* 2> /dev/null; echo +.endif +_only_machines := ${_machine_list:${NIgnoreFiles:UN*.bak}:E:O:u} +.else +_only_machines := ${ONLY_MACHINE_LIST} +.endif + +.if empty(_only_machines) +# we must be boot-strapping +_only_machines := ${TARGET_MACHINE:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}} +.endif + +.else # ! ALL_MACHINES +# if ONLY_MACHINE_LIST is set, we are limited to that +# if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST +# otherwise DEP_MACHINE is it - so DEP_MACHINE will match. +_only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}} +.endif + +.if !empty(NOT_MACHINE_LIST) +_only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}} +.endif + +# make sure we have a starting place? +DIRDEPS ?= ${RELDIR} +.endif # target + +# if repeatedly building the same target, +# we can avoid the overhead of re-computing the tree dependencies. +MK_DIRDEPS_CACHE ?= no +BUILD_DIRDEPS_CACHE ?= no +BUILD_DIRDEPS ?= yes + +.if !defined(NO_DIRDEPS) +.if ${MK_DIRDEPS_CACHE} == "yes" +# this is where we will cache all our work +DIRDEPS_CACHE?= ${_OBJDIR}/dirdeps.cache${.TARGETS:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.} + +# just ensure this exists +build-dirdeps: + +M_oneperline = @x@\\${.newline} $$x@ + +.if ${BUILD_DIRDEPS_CACHE} == "no" +.if !target(dirdeps-cached) +# we do this via sub-make +BUILD_DIRDEPS = no + +dirdeps: dirdeps-cached +dirdeps-cached: ${DIRDEPS_CACHE} .MAKE + @echo "${TRACER}Using ${DIRDEPS_CACHE}" + @MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \ + dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no + +# these should generally do +BUILD_DIRDEPS_MAKEFILE ?= ${MAKEFILE} +BUILD_DIRDEPS_TARGETS ?= ${.TARGETS} + +# we need the .meta file to ensure we update if +# any of the Makefile.depend* changed. +# We do not want to compare the command line though. +${DIRDEPS_CACHE}: .META .NOMETA_CMP + +@{ echo '# Autogenerated - do NOT edit!'; echo; \ + echo 'BUILD_DIRDEPS=no'; echo; \ + echo '.include <dirdeps.mk>'; \ + } > ${.TARGET}.new + +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \ + DIRDEPS="${DIRDEPS}" \ + MAKEFLAGS= ${.MAKE} -C ${_CURDIR} -f ${BUILD_DIRDEPS_MAKEFILE} \ + ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \ + .MAKE.DEPENDFILE=.none \ + 3>&1 1>&2 | sed 's,${SRCTOP},$${SRCTOP},g' >> ${.TARGET}.new && \ + mv ${.TARGET}.new ${.TARGET} + +.endif +.elif !target(_count_dirdeps) +# we want to capture the dirdeps count in the cache +.END: _count_dirdeps +_count_dirdeps: .NOMETA + @echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]}' >&3 + +.endif +.elif !make(dirdeps) && !target(_count_dirdeps) +beforedirdeps: _count_dirdeps +_count_dirdeps: .NOMETA + @echo "${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} seconds=`expr ${now_utc} - ${start_utc}`" + +.endif +.endif + +.if ${BUILD_DIRDEPS} == "yes" +.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != "" +_debug_reldir = 1 +.else +_debug_reldir = 0 +.endif +.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != "" +_debug_search = 1 +.else +_debug_search = 0 +.endif + +# the rest is done repeatedly for every Makefile.depend we read. +# if we are anything but the original dir we care only about the +# machine type we were included for.. + +.if ${DEP_RELDIR} == "." +_this_dir := ${SRCTOP} +.else +_this_dir := ${SRCTOP}/${DEP_RELDIR} +.endif + +# on rare occasions, there can be a need for extra help +_dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc +.-include "${_dep_hack}" + +.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC} +# this should be all +_machines := ${DEP_MACHINE} +.else +# this is the machine list we actually use below +_machines := ${_only_machines} + +.if defined(HOSTPROG) || ${DEP_MACHINE} == "host" +# we need to build this guy's dependencies for host as well. +_machines += host +.endif + +_machines := ${_machines:O:u} +.endif + +.if ${TARGET_SPEC_VARS:[#]} > 1 +# we need to tweak _machines +_dm := ${DEP_MACHINE} +# apply the same filtering that we do when qualifying DIRDEPS. +# M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.' +_machines := ${_machines:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} +DEP_MACHINE := ${_dm} +.endif + +# reset each time through +_build_dirs = + +.if ${DEP_RELDIR} == ${_DEP_RELDIR} +# pickup other machines for this dir if necessary +.if ${BUILD_AT_LEVEL0:Uyes} == "no" +_build_dirs += ${_machines:@m@${_CURDIR}.$m@} +.else +_build_dirs += ${_machines:N${DEP_TARGET_SPEC}:@m@${_CURDIR}.$m@} +.if ${DEP_TARGET_SPEC} == ${TARGET_SPEC} +# pickup local dependencies now +.-include <.depend> +.endif +.endif +.endif + +.if ${_debug_reldir} +.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}' +.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}' +.endif + +.if !empty(DIRDEPS) +# these we reset each time through as they can depend on DEP_MACHINE +DEP_DIRDEPS_FILTER = \ + ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \ + ${DIRDEPS_FILTER.${DEP_MACHINE}:U} \ + ${DIRDEPS_FILTER:U} +.if empty(DEP_DIRDEPS_FILTER) +# something harmless +DEP_DIRDEPS_FILTER = U +.endif + +# this is what we start with +__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@} + +# some entries may be qualified with .<machine> +# the :M*/*/*.* just tries to limit the dirs we check to likely ones. +# the ${d:E:M*/*} ensures we don't consider junos/usr.sbin/mgd +__qual_depdirs := ${__depdirs:M*/*/*.*:@d@${exists($d):?:${"${d:E:M*/*}":?:${exists(${d:R}):?$d:}}}@} +__unqual_depdirs := ${__depdirs:${__qual_depdirs:Uno:${M_ListToSkip}}} + +.if ${DEP_RELDIR} == ${_DEP_RELDIR} +# if it was called out - we likely need it. +__hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} +__qual_depdirs += ${__hostdpadd} +.endif + +.if ${_debug_reldir} +.info depdirs=${__depdirs} +.info qualified=${__qual_depdirs} +.info unqualified=${__unqual_depdirs} +.endif + +# _build_dirs is what we will feed to _DIRDEP_USE +_build_dirs += \ + ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \ + ${__qual_depdirs:N*.host} \ + ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \ + ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@} + +# qualify everything now +_build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u} + +.endif # empty DIRDEPS + +# Normally if doing make -V something, +# we do not want to waste time chasing DIRDEPS +# but if we want to count the number of Makefile.depend* read, we do. +.if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS}} == "" +.if !empty(_build_dirs) +.if ${BUILD_DIRDEPS_CACHE} == "yes" +x!= { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; \ + echo 'dirdeps: ${_build_dirs:${M_oneperline}}'; echo; } >&3; echo +x!= { ${_build_dirs:@x@${target($x):?:echo '$x: _DIRDEP_USE';}@} echo; } >&3; echo +.else +# this makes it all happen +dirdeps: ${_build_dirs} +.endif +${_build_dirs}: _DIRDEP_USE + +.if ${_debug_reldir} +.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs} +.endif + +# this builds the dependency graph +.for m in ${_machines} +# it would be nice to do :N${.TARGET} +.if !empty(__qual_depdirs) +.for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m} +.if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != "" +.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q} +.endif +.if ${BUILD_DIRDEPS_CACHE} == "yes" +x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$q:${M_oneperline}}'; echo; } >&3; echo +.else +${_this_dir}.$m: ${_build_dirs:M*.$q} +.endif +.endfor +.endif +.if ${_debug_reldir} +.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m} +.endif +.if ${BUILD_DIRDEPS_CACHE} == "yes" +x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m:${M_oneperline}}'; echo; } >&3; echo +.else +${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m} +.endif +.endfor + +.endif + +# Now find more dependencies - and recurse. +.for d in ${_build_dirs} +.if ${_DIRDEP_CHECKED:M$d} == "" +# once only +_DIRDEP_CHECKED += $d +.if ${_debug_search} +.info checking $d +.endif +# Note: _build_dirs is fully qualifed so d:R is always the directory +.if exists(${d:R}) +# Warning: there is an assumption here that MACHINE is always +# the first entry in TARGET_SPEC_VARS. +# If TARGET_SPEC and MACHINE are insufficient, you have a problem. +_m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:S;${MACHINE};${d:E:C/,.*//};:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]} +.if !empty(_m) +# M_dep_qual_fixes isn't geared to Makefile.depend +_qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}} +.if ${_debug_search} +.info Looking for ${_qm} +.endif +# we pass _DEP_TARGET_SPEC to tell the next step what we want +_DEP_TARGET_SPEC := ${d:E} +# some makefiles may still look at this +_DEP_MACHINE := ${d:E:C/,.*//} +# set this "just in case" +# we can skip :tA since we computed the path above +DEP_RELDIR := ${_m:H:S,${SRCTOP}/,,} +# and reset this +DIRDEPS = +.if ${_debug_reldir} && ${_qm} != ${_m} +.info loading ${_m} for ${d:E} +.endif +.include <${_m}> +.endif +.endif +.endif +.endfor + +.endif # -V +.endif # BUILD_DIRDEPS + +.elif ${.MAKE.LEVEL} > 42 +.error You should have stopped recursing by now. +.else +# we are building something +DEP_RELDIR := ${RELDIR} +_DEP_RELDIR := ${RELDIR} +# pickup local dependencies +.-include <.depend> +.endif + +# bootstrapping new dependencies made easy? +.if (make(bootstrap) || make(bootstrap-recurse)) && !target(bootstrap) + +.if exists(${.CURDIR}/${.MAKE.DEPENDFILE:T}) +# stop here +${.TARGETS:Mboot*}: +.else +# find a Makefile.depend to use as _src +_src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo +.if empty(_src) +.error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T} +.endif + +_src?= ${.MAKE.DEPENDFILE:T} + +bootstrap-this: .NOTMAIN + @echo Bootstrapping ${RELDIR}/${.MAKE.DEPENDFILE:T} from ${_src:T} + (cd ${.CURDIR} && sed 's,${_src:E},${MACHINE},g' ${_src} > ${.MAKE.DEPENDFILE:T}) + +bootstrap: bootstrap-recurse +bootstrap-recurse: bootstrap-this + +_mf := ${.PARSEFILE} +bootstrap-recurse: .NOTMAIN .MAKE + @cd ${SRCTOP} && \ + for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \ + test -d $$d || d=$${d%.*}; \ + test -d $$d || continue; \ + echo "Checking $$d for bootstrap ..."; \ + (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \ + done + +.endif +.endif |