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From: Gerd Hoffmann <kraxel@redhat.com>
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Subject: Re: [Qemu-devel] [PATCH 2/2] pixman: fix warning
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To: =?UTF-8?B?QW5kcmVhcyBGw6RyYmVy?= <afaerber@suse.de>
Cc: Blue Swirl <blauwirbel@gmail.com>, qemu-devel@nongnu.org, agraf@suse.de

  Hi,

> Unfortunately this did not help on SLES11 SP2. I don't spot any typo in
> your patches, it looked neat; CONFIG_PRAGMA_DIAGNOSTIC_AVAILABLE does
> not get defined in config-host.h it seems.

Hmm, anything in config.log?  Maybe the sles11 gcc doesn't support the
-Wunused-but-set-variable used in the configure test?

> Using the pragmas unconditionally results in change from:
>=20
>   CC    qemu-timer.o
> cc1: warnings being treated as errors
> In file included from
> /home/andreas/QEMU/qemu-s390/include/ui/qemu-pixman.h:13,
>                  from /home/andreas/QEMU/qemu-s390/include/ui/console.h=
:4,
>                  from /home/andreas/QEMU/qemu-s390/qemu-timer.c:27:
> /usr/include/pixman-1/pixman.h:225: error: redundant redeclaration of
> =E2=80=98pixman_transform_from_pixman_f_transform=E2=80=99
> /usr/include/pixman-1/pixman.h:221: error: previous declaration of
> =E2=80=98pixman_transform_from_pixman_f_transform=E2=80=99 was here
> make: *** [qemu-timer.o] Fehler 1
>=20
> to:
>=20
>   CC    qemu-timer.o
> cc1: warnings being treated as errors
> In file included from
> /home/andreas/QEMU/qemu-s390/include/ui/qemu-pixman.h:13,
>                  from /home/andreas/QEMU/qemu-s390/include/ui/console.h=
:4,
>                  from /home/andreas/QEMU/qemu-s390/qemu-timer.c:27:
> /usr/include/pixman-1/pixman.h:221: error: previous declaration of
> =E2=80=98pixman_transform_from_pixman_f_transform=E2=80=99 was here
> make: *** [qemu-timer.o] Fehler 1

That looks like a gcc bug to me.

cheers,
  Gerd