From 2e33c3f848a729ec549062b4ca9064ee6c83216d Mon Sep 17 00:00:00 2001 From: Thomas Huth Date: Mon, 14 Jan 2019 13:52:26 +0100 Subject: [PATCH] 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 Message-Id: <1547470346-18416-1-git-send-email-thuth@redhat.com> Acked-by: Christian Borntraeger Signed-off-by: Cornelia Huck --- configure | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) 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.