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Re: [Xen-devel] [Qemu-devel] [PATCH] qemu/configure: fix CFLAGS handling for i386

On Sat, Mar 31, Peter Maydell wrote:

> On 31 March 2012 16:41, Andreas FÃrber <afaerber@xxxxxxx> wrote:
> > This is the only usage of += outside Makefile fragments, so I wonder if
> > its use may have been by accident. Is it safe in a POSIX context?
> > Or should we better use CFLAGS="$CFLAGS -march=486"?
> > For QEMU_CFLAGS we use the pattern QEMU_CFLAGS="-options $QEMU_CFLAGS"
> > to allow overriding options.
> For that matter, should this be setting QEMU_CFLAGS instead of
> CFLAGS? I have to say I'm not entirely sure what the difference
> is...

I havent looked into qemu build internals, but there is most likely a
concept of HOST_TOOLS_CFLAGS and TARGET_CFLAGS in qemus Makefiles.


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