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Re: [Qemu-devel] qemu Makefile configure
From: |
Thiemo Seufer |
Subject: |
Re: [Qemu-devel] qemu Makefile configure |
Date: |
Wed, 3 Jan 2007 15:36:49 +0000 |
User-agent: |
Mutt/1.5.13 (2006-08-11) |
Daniel Jacobowitz wrote:
> On Wed, Jan 03, 2007 at 02:42:20PM +0000, Thiemo Seufer wrote:
> > +CFLAGS += $(OS_CFLAGS)
>
> Did you try this on any target that triggers one of the += cases?
>
> It's not the most intuitive thing in the world, but I believe make
> ignores Makefile += operators if the variable was overridden on the
> command line (i.e. the override effectively happens after the +=).
You are right.
> You'd need to leave CFLAGS for the overrideable bits unless you
> wanted to override all the += deliberately.
I think I have to use "override CFLAGS += -ffoo".
Thiemo