From owner-freebsd-hackers  Mon Mar  6 12:16:12 2000
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To: chet@po.CWRU.Edu
Subject: Re: empty lists in for 
Cc: jhix@mindspring.com, Doug@gorean.org, hackers@FreeBSD.ORG
In-reply-to: Your message of "Mon, 06 Mar 2000 12:09:02 EST."
		<1000306170902.AA22857.SM@nike.ins.cwru.edu> 
References: <1000306170902.AA22857.SM@nike.ins.cwru.edu>  
Date: Mon, 06 Mar 2000 13:15:45 -0700
From: Warner Losh <imp@village.org>
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In message <1000306170902.AA22857.SM@nike.ins.cwru.edu> Chet Ramey writes:
: The idiomatic solution for this sort of thing is changing
: your makefile recipes from
: 
: 	for f in ${SUBDIRS} do ...
: 
: to
: 
: 	sh_subdirs=${SUBDIRS}; for f in $$sh_subdirs ; do ...

That's much better than what I've tended to do:
	for f in x ${FOO}; do
		if [  $f != x ]; then
		fi
	done

there's lots of other workarounds, from seeing if SUBDIRS is defined,
to using make's .foreach.

Warner


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