Re: [uml-devel] UML fails to build with CONFIG_MK7 set

[Daniel Gryniewicz <dang@gentoo.org>]

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On Wed, 2006-07-12 at 20:52 +0200, Blaisorblade wrote:
> On Monday 10 July 2006 03:08, Daniel Gryniewicz wrote:
> > Hi, all.
> >
> > I got a bug report (http://bugs.gentoo.org/show_bug.cgi?id=138536) about
> > UML 2.6.16-bs2 failing to build.  I've checked it out, and it fails to
> > build because CONFIG_MK7 is set, which sets CONFIG_X86_USE_3DNOW, which
> > causes asm/arch/string.h to pull in asm/mmx.h, which doesn't exist
> > (because it's in asm/arch/mxx.h, this being UML).  The obvious solution
> > is to symlink it in, but this raises another question:
> 
> Does it compile then? I tried at the time (it wasn't K7 but another setting 
> giving the same error) but I recall it didn't work because it needed further 
> work (and part of the content wasn't valid for i386).

Honestly, I didn't try to make it build with K7 at all.  The person
reporting the bug was happy to switch to i686, so it's not an issue from
a gentoo point of view.

> The best temporary solution would be to mark as working only the choices which 
> actually do, and block them for UML (not for i386, and the code is shared - 
> it suffices a dependency on !UML in the appropriate Kconfig). And it's a 
> shame I didn't do this already. I hope to work on this on the weekend but 
> it's a bit difficult.

I'll give this a shot, and see if I can work up a patch.

Daniel

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