1# $FreeBSD$ 2# $Id: dirdeps-options.mk,v 1.8 2018/05/29 22:31:21 sjg Exp $ 3# 4# @(#) Copyright (c) 2018, Simon J. Gerraty 5# 6# This file is provided in the hope that it will 7# be of use. There is absolutely NO WARRANTY. 8# Permission to copy, redistribute or otherwise 9# use this file is hereby granted provided that 10# the above copyright notice and this notice are 11# left intact. 12# 13# Please send copies of changes and bug-fixes to: 14# sjg@crufty.net 15# 16 17## 18# 19# This makefile is used to deal with optional DIRDEPS. 20# 21# It is to be included by Makefile.depend.options in a 22# directory which has DIRDEPS affected by optional features. 23# Makefile.depend.options should set DIRDEPS_OPTIONS and 24# may also set specific DIRDEPS.* for those options. 25# 26# If a Makefile.depend.options file exists, it will be included by 27# dirdeps.mk and meta.autodep.mk 28# 29# We include local.dirdeps-options.mk which may also define DIRDEPS.* 30# for options. 31# 32# Thus a directory, that is affected by an option FOO would have 33# a Makefile.depend.options that sets 34# DIRDEPS_OPTIONS= FOO 35# It can also set either/both of 36# DIRDEPS.FOO.yes 37# DIRDEPS.FOO.no 38# to whatever applies for that dir, or it can rely on globals 39# set in local.dirdeps-options.mk 40# Either way, we will .undef DIRDEPS.* when done. 41 42# This should have been set by Makefile.depend.options 43# before including us 44DIRDEPS_OPTIONS ?= 45 46# pickup any DIRDEPS.* we need 47.-include <local.dirdeps-options.mk> 48 49.if ${.MAKE.LEVEL} == 0 50# :U below avoids potential errors when we := 51.for o in ${DIRDEPS_OPTIONS:tu} 52DIRDEPS += ${DIRDEPS.$o.${MK_$o:U}:U} 53.endfor 54DIRDEPS := ${DIRDEPS:O:u} 55# avoid cross contamination 56.for o in ${DIRDEPS_OPTIONS:tu} 57.undef DIRDEPS.$o.yes DIRDEPS.$o.no 58.endfor 59.else 60# whether options are enabled or not, 61# we want to filter out the relevant DIRDEPS.* 62# we should only be included by meta.autodep.mk 63# if dependencies are to be updated 64.for o in ${DIRDEPS_OPTIONS:tu} 65.for d in ${DIRDEPS.$o.yes} ${DIRDEPS.$o.no} 66.if exists(${SRCTOP}/$d) 67GENDIRDEPS_FILTER += N$d* 68.elif exists(${SRCTOP}/${d:R}) 69GENDIRDEPS_FILTER += N${d:R}* 70.endif 71.endfor 72.endfor 73.endif 74