58 lines
2.1 KiB
Makefile
58 lines
2.1 KiB
Makefile
# $Id: sys.dependfile.mk,v 1.6 2014/08/02 18:02:06 sjg Exp $
|
|
#
|
|
# @(#) Copyright (c) 2012, Simon J. Gerraty
|
|
#
|
|
# This file is provided in the hope that it will
|
|
# be of use. There is absolutely NO WARRANTY.
|
|
# Permission to copy, redistribute or otherwise
|
|
# use this file is hereby granted provided that
|
|
# the above copyright notice and this notice are
|
|
# left intact.
|
|
#
|
|
# Please send copies of changes and bug-fixes to:
|
|
# sjg@crufty.net
|
|
#
|
|
|
|
# This only makes sense in meta mode.
|
|
# This allows a mixture of auto generated as well as manually edited
|
|
# dependency files, which can be differentiated by their names.
|
|
# As per dirdeps.mk we only require:
|
|
# 1. a common prefix
|
|
# 2. that machine specific files end in .${MACHINE}
|
|
#
|
|
# The .MAKE.DEPENDFILE_PREFERENCE below is an example.
|
|
|
|
# All depend file names should start with this
|
|
.MAKE.DEPENDFILE_PREFIX ?= Makefile.depend
|
|
|
|
.if !empty(.MAKE.DEPENDFILE) && \
|
|
${.MAKE.DEPENDFILE:M${.MAKE.DEPENDFILE_PREFIX}*} == ""
|
|
# let us do our thing below...
|
|
.undef .MAKE.DEPENDFILE
|
|
.endif
|
|
|
|
# The order of preference: we will use the first one of these we find.
|
|
# It usually makes sense to order from most specific to least.
|
|
.MAKE.DEPENDFILE_PREFERENCE ?= \
|
|
${.CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.${MACHINE} \
|
|
${.CURDIR}/${.MAKE.DEPENDFILE_PREFIX}
|
|
|
|
# Normally the 1st entry is our default choice
|
|
# Another useful default is ${.MAKE.DEPENDFILE_PREFIX}
|
|
.MAKE.DEPENDFILE_DEFAULT ?= ${.MAKE.DEPENDFILE_PREFERENCE:[1]}
|
|
|
|
_e := ${.MAKE.DEPENDFILE_PREFERENCE:@m@${exists($m):?$m:}@}
|
|
.if !empty(_e)
|
|
.MAKE.DEPENDFILE := ${_e:[1]}
|
|
.elif ${.MAKE.DEPENDFILE_PREFERENCE:M*${MACHINE}} != "" && ${.MAKE.DEPENDFILE_DEFAULT:E} != ${MACHINE}
|
|
# MACHINE specific depend files are supported, but *not* default.
|
|
# If any already exist, we should follow suit.
|
|
_aml = ${ALL_MACHINE_LIST:Uarm amd64 i386 powerpc:N${MACHINE}} ${MACHINE}
|
|
# MACHINE must be the last entry in _aml ;-)
|
|
_e := ${_aml:@MACHINE@${.MAKE.DEPENDFILE_PREFERENCE:@m@${exists($m):?$m:}@}@}
|
|
.if !empty(_e)
|
|
.MAKE.DEPENDFILE ?= ${.MAKE.DEPENDFILE_PREFERENCE:M*${MACHINE}:[1]}
|
|
.endif
|
|
.endif
|
|
.MAKE.DEPENDFILE ?= ${.MAKE.DEPENDFILE_DEFAULT}
|