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Date: Mon, 18 May 2009 11:25:03 +0300
From: Riku Voipio <riku.voipio@iki.fi>
Subject: Re: [Qemu-devel] Re: [PATCH 3/4] Update makefile to build roms
Message-ID: <20090518082503.GA12681@kos.to>
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To: Jamie Lokier <jamie@shareable.org>
Cc: Alex Graf <alex@csgraf.de>, Anthony Liguori <aliguori@us.ibm.com>, Avi Kivity <avi@redhat.com>, qemu-devel@nongnu.org, Dustin Kirkland <kirkland@canonical.com>

On Mon, May 18, 2009 at 05:24:45AM +0100, Jamie Lokier wrote:
> Paul Brook wrote:
> > > Having multiple packages therefore makes little sense because they can
> > > never be independent of each other.

> > Depends how your build system is setup.  IMHO building a ROM and
> > building qemu itself are different tasks that effectively need
> > separate packages anyway.

> And when built for a distribution, perhaps QEMU, BIOS and PXE should
> be separate packages anyway, with QEMU depending on the others (or
> perhaps "recommending").

This is indeed how it is done in Debian, roms are built in separate packages.
There is also the complication of building ROMs for non-native archs.
Say building openbios-sparc when building qemu on x86, or vgabios when
building qemu on ppc. Then you need a crosscompiler at hand.

While it is not useful for distributions, making it possible to build roms as
part of qemu build process is still usefull for people hacking on qemu.