+ # Check whether to support alternative target configurations
+--- a/gdb/gdbserver/configure
++++ b/gdb/gdbserver/configure
+@@ -2181,7 +2181,7 @@ $as_echo "$as_me: error: \`$ac_var' was
+ ac_cache_corrupted=: ;;
+ ,);;
+ *)
+- if test "x$ac_old_val" != "x$ac_new_val"; then
++ if test "`echo x$ac_old_val`" != "`echo x$ac_new_val`"; then
+ # differences in whitespace do not lead to failure.
+ ac_old_val_w=`echo x $ac_old_val`
+ ac_new_val_w=`echo x $ac_new_val`