1*c59c3bf3SSimon J. Gerraty# SPDX-License-Identifier: BSD-2-Clause 2*c59c3bf3SSimon J. Gerraty# 3*c59c3bf3SSimon J. Gerraty# $Id: dirdeps-options.mk,v 1.22 2024/02/17 17:26:57 sjg Exp $ 4494f7191SSimon J. Gerraty# 51d3f2ddcSSimon J. Gerraty# @(#) Copyright (c) 2018-2022, Simon J. Gerraty 6494f7191SSimon J. Gerraty# 7494f7191SSimon J. Gerraty# This file is provided in the hope that it will 8494f7191SSimon J. Gerraty# be of use. There is absolutely NO WARRANTY. 9494f7191SSimon J. Gerraty# Permission to copy, redistribute or otherwise 10494f7191SSimon J. Gerraty# use this file is hereby granted provided that 11494f7191SSimon J. Gerraty# the above copyright notice and this notice are 12494f7191SSimon J. Gerraty# left intact. 13494f7191SSimon J. Gerraty# 14494f7191SSimon J. Gerraty# Please send copies of changes and bug-fixes to: 15494f7191SSimon J. Gerraty# sjg@crufty.net 16494f7191SSimon J. Gerraty# 17494f7191SSimon J. Gerraty 18494f7191SSimon J. Gerraty## 19494f7191SSimon J. Gerraty# 20494f7191SSimon J. Gerraty# This makefile is used to deal with optional DIRDEPS. 21494f7191SSimon J. Gerraty# 22494f7191SSimon J. Gerraty# It is to be included by Makefile.depend.options in a 23494f7191SSimon J. Gerraty# directory which has DIRDEPS affected by optional features. 24494f7191SSimon J. Gerraty# Makefile.depend.options should set DIRDEPS_OPTIONS and 25494f7191SSimon J. Gerraty# may also set specific DIRDEPS.* for those options. 26494f7191SSimon J. Gerraty# 27494f7191SSimon J. Gerraty# If a Makefile.depend.options file exists, it will be included by 28494f7191SSimon J. Gerraty# dirdeps.mk and meta.autodep.mk 29494f7191SSimon J. Gerraty# 302eae894cSSimon J. Gerraty# We include local.dirdeps-options.mk which may also define DIRDEPS.* 31494f7191SSimon J. Gerraty# for options. 32494f7191SSimon J. Gerraty# 33494f7191SSimon J. Gerraty# Thus a directory, that is affected by an option FOO would have 34494f7191SSimon J. Gerraty# a Makefile.depend.options that sets 35494f7191SSimon J. Gerraty# DIRDEPS_OPTIONS= FOO 36494f7191SSimon J. Gerraty# It can also set either/both of 37494f7191SSimon J. Gerraty# DIRDEPS.FOO.yes 38494f7191SSimon J. Gerraty# DIRDEPS.FOO.no 39494f7191SSimon J. Gerraty# to whatever applies for that dir, or it can rely on globals 402eae894cSSimon J. Gerraty# set in local.dirdeps-options.mk 41494f7191SSimon J. Gerraty# Either way, we will .undef DIRDEPS.* when done. 422c3632d1SSimon J. Gerraty# 432c3632d1SSimon J. Gerraty# In some cases the value of MK_FOO might depend on TARGET_SPEC 442c3632d1SSimon J. Gerraty# so we qualify MK_FOO with .${TARGET_SPEC} and each component 452c3632d1SSimon J. Gerraty# TARGET_SPEC_VAR (in reverse order) before using MK_FOO. 462c3632d1SSimon J. Gerraty# 474fde40d9SSimon J. Gerraty# Because Makefile.depend.options are processed at both level 0 (when 484fde40d9SSimon J. Gerraty# computing DIRDEPS to build) and higher (when updating 494fde40d9SSimon J. Gerraty# Makefile.depend* after successful build), it is important that 504fde40d9SSimon J. Gerraty# all references to TARGET_SPEC_VARs should use the syntax 514fde40d9SSimon J. Gerraty# ${DEP_${TARGET_SPEC_VAR}:U${TARGET_SPEC_VAR}} to ensure correct 524fde40d9SSimon J. Gerraty# behavior. 534fde40d9SSimon J. Gerraty# 54494f7191SSimon J. Gerraty 55494f7191SSimon J. Gerraty# This should have been set by Makefile.depend.options 56494f7191SSimon J. Gerraty# before including us 57494f7191SSimon J. GerratyDIRDEPS_OPTIONS ?= 58494f7191SSimon J. Gerraty 59494f7191SSimon J. Gerraty# pickup any DIRDEPS.* we need 602eae894cSSimon J. Gerraty.-include <local.dirdeps-options.mk> 61494f7191SSimon J. Gerraty 62494f7191SSimon J. Gerraty.if ${.MAKE.LEVEL} == 0 63494f7191SSimon J. Gerraty# :U below avoids potential errors when we := 642c3632d1SSimon J. Gerraty# some options can depend on TARGET_SPEC! 652c3632d1SSimon J. GerratyDIRDEPS_OPTIONS_QUALIFIER_LIST ?= \ 661d3f2ddcSSimon J. Gerraty ${DEP_RELDIR} \ 672c3632d1SSimon J. Gerraty ${DEP_TARGET_SPEC:U${TARGET_SPEC}} \ 682c3632d1SSimon J. Gerraty ${TARGET_SPEC_VARSr:U${TARGET_SPEC_VARS}:@v@${DEP_$v:U${$v}}@} 692c3632d1SSimon J. Gerraty# note that we need to include $o in the variable _o$o 702c3632d1SSimon J. Gerraty# to ensure correct evaluation. 712c3632d1SSimon J. Gerraty.for o in ${DIRDEPS_OPTIONS} 7206b9b3e0SSimon J. Gerraty.undef _o$o 7306b9b3e0SSimon J. Gerraty.undef _v$o 741d3f2ddcSSimon J. Gerraty.for x in ${DIRDEPS_OPTIONS_QUALIFIER_LIST:S,^,${DEP_RELDIR}.,} \ 751d3f2ddcSSimon J. Gerraty ${DIRDEPS_OPTIONS_QUALIFIER_LIST} 761d3f2ddcSSimon J. Gerraty#.info MK_$o.$x=${MK_$o.$x:Uundefined} 772c3632d1SSimon J. Gerraty.if defined(MK_$o.$x) 782c3632d1SSimon J. Gerraty_o$o ?= MK_$o.$x 792c3632d1SSimon J. Gerraty_v$o ?= ${MK_$o.$x} 802c3632d1SSimon J. Gerraty.endif 812c3632d1SSimon J. Gerraty.endfor 822c3632d1SSimon J. Gerraty_v$o ?= ${MK_$o} 832c3632d1SSimon J. Gerraty.if ${_debug_reldir:U0} 842c3632d1SSimon J. Gerraty.info ${DEP_RELDIR:U${RELDIR}}.${DEP_TARGET_SPEC:U${TARGET_SPEC}}: o=$o ${_o$o:UMK_$o}=${_v$o:U} DIRDEPS += ${DIRDEPS.$o.${_v$o:U}:U} 852c3632d1SSimon J. Gerraty.endif 862c3632d1SSimon J. GerratyDIRDEPS += ${DIRDEPS.$o.${_v$o:U}:U} 87494f7191SSimon J. Gerraty.endfor 88494f7191SSimon J. GerratyDIRDEPS := ${DIRDEPS:O:u} 892c3632d1SSimon J. Gerraty.if ${_debug_reldir:U0} 902c3632d1SSimon J. Gerraty.info ${DEP_RELDIR:U${RELDIR}}: DIRDEPS=${DIRDEPS} 912c3632d1SSimon J. Gerraty.endif 92494f7191SSimon J. Gerraty# avoid cross contamination 932c3632d1SSimon J. Gerraty.for o in ${DIRDEPS_OPTIONS} 942eae894cSSimon J. Gerraty.undef DIRDEPS.$o.yes 952eae894cSSimon J. Gerraty.undef DIRDEPS.$o.no 962c3632d1SSimon J. Gerraty.undef _o$o 972c3632d1SSimon J. Gerraty.undef _v$o 982eae894cSSimon J. Gerraty.endfor 99494f7191SSimon J. Gerraty.else 100494f7191SSimon J. Gerraty# whether options are enabled or not, 101494f7191SSimon J. Gerraty# we want to filter out the relevant DIRDEPS.* 102494f7191SSimon J. Gerraty# we should only be included by meta.autodep.mk 103494f7191SSimon J. Gerraty# if dependencies are to be updated 1042c3632d1SSimon J. Gerraty.for o in ${DIRDEPS_OPTIONS} 105494f7191SSimon J. Gerraty.for d in ${DIRDEPS.$o.yes} ${DIRDEPS.$o.no} 106494f7191SSimon J. Gerraty.if exists(${SRCTOP}/$d) 107494f7191SSimon J. GerratyGENDIRDEPS_FILTER += N$d* 108494f7191SSimon J. Gerraty.elif exists(${SRCTOP}/${d:R}) 109494f7191SSimon J. GerratyGENDIRDEPS_FILTER += N${d:R}* 110494f7191SSimon J. Gerraty.endif 111494f7191SSimon J. Gerraty.endfor 112494f7191SSimon J. Gerraty.endfor 113494f7191SSimon J. Gerraty.endif 114