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From: =?UTF-8?q?Alex=20Benn=C3=A9e?= <alex.bennee@linaro.org>
Date: Tue,  9 Aug 2016 16:55:26 +0100
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Subject: [Qemu-devel] [RFC for 2.8 2/3] configure: filter 64 bit machines on
 32 bit builds
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Cc: peter.maydell@linaro.org, rth@twiddle.net, =?UTF-8?q?Alex=20Benn=C3=A9e?= <alex.bennee@linaro.org>

If the user doesn't specify any targets we build a default_target_list
from the target .mak fragements. If we don't filter out the 64 bit
targets when building on 32 bit machines we'll error out later on.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
 configure | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/configure b/configure
index 7b779c1..5499dbc 100755
--- a/configure
+++ b/configure
@@ -1252,7 +1252,21 @@ if [ "$bsd_user" = "yes" ]; then
 fi
 
 for config in $mak_wilds; do
-    default_target_list="${default_target_list} $(basename "$config" .mak)"
+
+    target=$(basename "$config" .mak)
+
+    if test "$cpu_width" = "32"; then
+        case $target in
+            *64*|s390x-*)
+                # skip 64 bit machines
+                ;;
+            *)
+                default_target_list="${default_target_list} ${target}"
+                ;;
+        esac
+    else
+        default_target_list="${default_target_list} ${target}"
+    fi
 done
 
 if test x"$show_help" = x"yes" ; then
-- 
2.7.4