Date: Fri, 31 May 2002 23:46:03 -0500 From: Dan Nelson <dnelson@allantgroup.com> To: Jos Backus <jos@catnook.com> Cc: Julian Elischer <julian@elischer.org>, freebsd-hackers@FreeBSD.ORG Subject: Re: Improving GNU make compatibility in BSD make (+ patch) Message-ID: <20020601044603.GD91922@dan.emsphone.com> In-Reply-To: <20020601025457.GA1457@lizzy.catnook.com> References: <20020601015343.GA1132@lizzy.catnook.com> <Pine.BSF.4.21.0205311855390.29361-100000@InterJet.elischer.org> <20020601025457.GA1457@lizzy.catnook.com>
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In the last episode (May 31), Jos Backus said: > On Fri, May 31, 2002 at 06:55:54PM -0700, Julian Elischer wrote: > > On Fri, 31 May 2002, Jos Backus wrote: > > > Fyi: it appears nobody is really interested in having BSD make > > > and GNU make converge a little, so I am not going waste any more > > > time on this. > > > what would you want to do? > > BSD make and GNU make use different symbols for .ALLSRC: GNU make > uses $^ and BSD make uses $>. All my tiny patch to BSD make does is > have BSD make treat $^ as $>. This fixes the problem of the mktool > Makefile which with this patch is executed properly by both make's. > Perhaps there is a better way to achieve this but I don't see it. > Since BSD make (or OpenBSD make, for that matter) doesn't currently > use $^ I thought it was a pretty safe and useful change. That doesn't fix Tru64 make, which uses $> like BSD make, or Solaris make, which has neither. In fact, based on this sample, I suggest you submit a patch to the gmake people adding $>, which obviously is the defacto standard :) Automake avoids the issue entirely by simply listing the dependencies itself, so > envuidgid: envuidgid.o > $(CC) $(LDFLAGS) -o $@ $^ becomes > $(CC) $(LDFLAGS) -o $@ envuidgid.o -- Dan Nelson dnelson@allantgroup.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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