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authorThomas Huth <thuth@redhat.com>2019-01-14 13:52:26 +0100
committerCornelia Huck <cohuck@redhat.com>2019-01-18 11:52:01 +0100
commit2e33c3f848a729ec549062b4ca9064ee6c83216d (patch)
treedd1318490ae7616156db1aeb7f748c7de8c7b905 /configure
parent37dbd1f4d4805edcd18d94eb202bb3461b3cd52d (diff)
configure: Only build the s390-ccw bios if the compiler supports -march=z900
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 <thuth@redhat.com> Message-Id: <1547470346-18416-1-git-send-email-thuth@redhat.com> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'configure')
-rwxr-xr-xconfigure6
1 files changed, 5 insertions, 1 deletions
diff --git a/configure b/configure
index 3eee3fcf70..87273d1c12 100755
--- a/configure
+++ b/configure
@@ -5889,8 +5889,12 @@ if test "$cpu" = "ppc64" -a "$targetos" != "Darwin" ; then
roms="$roms spapr-rtas"
fi
+# Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
if test "$cpu" = "s390x" ; then
- roms="$roms s390-ccw"
+ write_c_skeleton
+ if compile_prog "-march=z900" ""; then
+ roms="$roms s390-ccw"
+ fi
fi
# Probe for the need for relocating the user-only binary.