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Message-ID: <20080711102310.GA17033@elte.hu>
Date: Fri, 11 Jul 2008 12:23:10 +0200
From: Ingo Molnar <mingo@...e.hu>
To: Sam Ravnborg <sam@...nborg.org>
Cc: Robert Richter <robert.richter@....com>,
Thomas Gleixner <tglx@...utronix.de>,
LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/5] x86/pci: patches for tip/x86/unify-pci
* Sam Ravnborg <sam@...nborg.org> wrote:
> > > >
> > > > So if I am not mistaken you can kill pci-y entirely:
> >
> > Yes, but...
> >
> > > >
> > > > obj-y := fixup.o
> >
> > ... this is with a plus:
> >
> > obj-y += fixup.o
>
> obj-y is empty when you enter the Makefile.
> So if you start out with ':=' or '+=' is no difference.
i guess it's safer to use +=, because it's ordering invariant.
We should use := only if we absolutely want to override the current
rules.
Ingo
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