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[Qemu-devel] [PATCH] configure: Only build the s390-ccw bios if the comp
From: |
Thomas Huth |
Subject: |
[Qemu-devel] [PATCH] configure: Only build the s390-ccw bios if the compiler supports -march=z900 |
Date: |
Mon, 14 Jan 2019 13:23:09 +0100 |
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>
---
configure | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/configure b/configure
index 05b7e85..df34974 100755
--- a/configure
+++ b/configure
@@ -5906,7 +5906,10 @@ if test "$cpu" = "ppc64" -a "$targetos" != "Darwin" ;
then
fi
if test "$cpu" = "s390x" ; then
- roms="$roms s390-ccw"
+ # Only build the s390-ccw bios if the compiler supports -march=z900
+ if "$cc" -dumpspecs 2>/dev/null | grep -q "march=z900"; then
+ roms="$roms s390-ccw"
+ fi
fi
# Probe for the need for relocating the user-only binary.
--
1.8.3.1
- [Qemu-devel] [PATCH] configure: Only build the s390-ccw bios if the compiler supports -march=z900,
Thomas Huth <=