Backport fix for issue #11149.

1 files changed, 6 insertions, 0 deletions

diff --git a/configure b/configure
index 99a7c71..7d6423a 100755
--- a/configure
+++ b/configure
@@ -5411,6 +5411,12 @@ then
         if "$CC" -v --help 2>/dev/null |grep -- -fwrapv > /dev/null; then
            WRAP="-fwrapv"
         fi
+
+        # Clang also needs -fwrapv
+        if test "$CC" = "clang" ; then
+            WRAP="-fwrapv"
+        fi
+
 	case $ac_cv_prog_cc_g in
 	yes)
 	    if test "$Py_DEBUG" = 'true' ; then