From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([209.51.188.92]:59970) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gj1jM-0007OE-Rq for qemu-devel@nongnu.org; Mon, 14 Jan 2019 07:52:41 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gj1jL-0000Iz-2s for qemu-devel@nongnu.org; Mon, 14 Jan 2019 07:52:40 -0500 From: Thomas Huth Date: Mon, 14 Jan 2019 13:52:26 +0100 Message-Id: <1547470346-18416-1-git-send-email-thuth@redhat.com> Subject: [Qemu-devel] [PATCH v2] configure: Only build the s390-ccw bios if the compiler supports -march=z900 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Cornelia Huck , qemu-devel@nongnu.org Cc: qemu-s390x@nongnu.org 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 --- v2: Use compile_prog as suggested by Peter configure | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/configure b/configure index 05b7e85..2b9ba7d 100755 --- a/configure +++ b/configure @@ -5905,8 +5905,12 @@ 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. -- 1.8.3.1