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Re: [qemu-s390x] [PATCH v2] configure: Only build the s390-ccw bios if t

From: Cornelia Huck
Subject: Re: [qemu-s390x] [PATCH v2] configure: Only build the s390-ccw bios if the compiler supports -march=z900
Date: Mon, 14 Jan 2019 16:20:03 +0100

On Mon, 14 Jan 2019 13:52:26 +0100
Thomas Huth <address@hidden> wrote:

> We want to build our s390-ccw bios with -march=z900 so that it also
> works with the oldest s390x CPU that we support with TCG. However,
> Clang on s390x does not support -march=z900 anymore, so we can not
> use this compiler to build the s390-ccw bios. Thus add a proper test
> to the configure script to see whether the compiler is usable.
> Signed-off-by: Thomas Huth <address@hidden>
> ---
>  v2: Use compile_prog as suggested by Peter
>  configure | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)

With this, the fpu/softfloat patch, and Marcel's rdma patches, I can
compile with clang on my Fedora 29 s390x system. Yeah!

Should this patch go through the s390 tree, or take some other path?

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