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# $Id: autoconf.mk,v 1.8 2012/11/19 05:37:48 sjg Exp $
#
# @(#) Copyright (c) 1996-2009, 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
#
.NOPATH: config.h config.status
.if !target(config.h)
config.h: ${.CURDIR}/config.h.in config.status
./config.status
.endif
.if !target(config.status)
# avoid the targets behaving differently
.if exists(${.OBJDIR}/config.status)
config.status: config.recheck
.else
config.status: config.gen
.endif
config.recheck: config.h.in ${.CURDIR}/configure
./config.status --recheck
@touch $@
config.gen: config.h.in ${.CURDIR}/configure
CC="${CC} ${CCMODE}" ${.CURDIR}/configure --no-create ${CONFIGURE_ARGS}
@touch $@ config.recheck
CLEANFILES+= config.recheck config.gen config.status *.meta
.endif
# avoid things blowing up if these are not here...
# this is not quite per the autoconf manual,
# and is extremely convoluted - but all utterly necessary!
.if make(autoconf-in) || make(configure) || make(config.h.in) || ${AUTO_AUTOCONF:Uno:tl} == "yes"
AUTOCONF ?= autoconf
AUTOHEADER ?= autoheader
# expand it to a full path
AUTOCONF := ${AUTOCONF:${M_whence}}
.if exists(${AUTOCONF})
.PRECIOUS: configure config.h.in config.status
ACLOCAL =
ACCONFIG =
.if exists(${.CURDIR}/aclocal.m4)
ACLOCAL += aclocal.m4
.endif
# use of acconfig.h is deprecated!
.if exists(${.CURDIR}/acconfig.h)
ACCONFIG += acconfig.h
.endif
config.h.in: ${.CURDIR}/configure.in ${ACCONFIG}
(cd ${.CURDIR} && ${AUTOHEADER})
configure: ${.CURDIR}/configure.in ${ACLOCAL}
(cd ${.CURDIR} && ${AUTOCONF})
AUTOCONF_INPUTS += configure
autoconf-input: ${AUTOCONF_INPUTS}
.endif
.endif
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