+# Check if setacl/setfacl is around and if it supports the -k or -s option.
+if setacl -k u::7,g::5,o:5 testsuite 2>/dev/null; then
+ setfacl_nodef='setacl -k'
+elif setfacl --help 2>&1 | grep ' -k,\|\[-[a-z]*k' >/dev/null; then
+ setfacl_nodef='setfacl -k'
+elif setfacl -s u::7,g::5,o:5 testsuite 2>/dev/null; then
+ setfacl_nodef='setfacl -s u::7,g::5,o:5'
+else
+ # The "true" command runs successfully, but does nothing.
+ setfacl_nodef=true
+fi