On Sun, Aug 29, 2004 at 01:06:57PM -0500, Frederick Bruckman wrote:
>[...]
>sendmail.cf: MAIL.IMMANENT.NET.mc
>	cp -p sendmail.cf sendmail.cf.old
>	${M4} ${.ALLSRC} > sendmail.cf
>
>submit.cf: SUBMIT.mc
>	cp -p submit.cf submit.cf.old
>	${M4} ${.ALLSRC} > submit.cf
>
>
>Season to taste. Note, you have to add
>
>
>define(`_CF_DIR_', `/usr/share/sendmail/')
>include(`/usr/share/sendmail/m4/cf.m4')
>
>
>to the top of your MC file to permit it to build anywhere, as the
>default is to take "_CF_DIR_" as the current working directory.

no, you don't.  all you have to do is specify the full path to cf.m4
(eg /usr/share/sendmail/m4/cf.m4) on the m4 line, like so:

	sendmail.cf: MAIL.IMMANENT.NET.mc
		cp -p sendmail.cf sendmail.cf.old
		${M4} /usr/share/sendmail/m4/cf.m4 ${.ALLSRC} > sendmail.cf
	
and the m4 "magic" in cf.m4 will figure out where _CF_DIR_ is.  :)

as an aside (more seasoning), i'd suggest using install ("install -B"
actually) instead of cp there.  then you get backups made each time
you rebuild instead of just the one in .old.  eg:

	M4?=		m4
	RM?=		rm -f
	CFDIR?=		/usr/share/sendmail
	CHMOD?=		chmod
	ROMODE?=	444
	DATE!=		date +%Y%m%d
	.SUFFIXES: .cf .mc
	.mc.cf:
		[ ! -f $@ ] || ${INSTALL} -m${ROMODE} -cB.%02d $@ $@.${DATE}
		${RM} $@
		${M4} ${CFDIR}/m4/cf.m4 ${.CURDIR}/${@:R}.mc > $@
		${CHMOD} ${ROMODE} $@
	.PHONY: all
	all:

that gives me this:

	# cd /etc/mail
	# for i in 1 2 3; do sleep 1; touch foo.mc; make foo.cf; done
	[output elided]
	# ls foo.cf*
	foo.cf              foo.cf.20040829.00
	foo.cf.20040829     foo.cf.20040829.01

adding implicit dependencies on the other files under ${CFDIR}
shouldn't be too hard either, and would be a good idea, since after
you update you probably want to rebuild your cf.

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