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From: Szabolcs Nagy <nsz@port70.net>
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Subject: Re: Build system adjustments for subarchs
Date: Wed, 14 Aug 2013 17:09:50 +0200
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* Rich Felker <dalias@aerifal.cx> [2013-08-14 00:02:26 -0400]:
> > 
> > define archrule =
> > $(dir $(patsubst %/,%,$(dir $(s))))$(notdir $(s:.s=.o)): $(s)
> > endef
> > 
> > $(foreach s,$(wildcard src/*/$(ARCH)*/*.s),$(eval $(call archrule,$(s))))
> > 
> > [...]
> > 
> > I'm going to run some tests on arm, and it if works, I'll commit.
> 
> I think it should be $(1) rather than $(s) in the archrule, but for
> some reason, the $(eval ...) is not doing _anything_ on make 3.81 on
> my Debian box. With my usual make 3.82, it works fine. This is not
> really a show-stopper, since no errors occur; it just means
> dependencies aren't getting honored on some versions of make that
> might still be out there in the wild. But I would very much appreciate
> some insight on why this is happening, from any GNU make experts...

i had to fight this fight for the test repo

define foo =
a:b
endef

does not work for some reason, but

define foo
a:b
endef

does