dxdiag: Display a usage message box when unknown options are requested.
diff --git a/configure.ac b/configure.ac
index ba36dda..2ae64f7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2943,7 +2943,7 @@
 WINE_CONFIG_TEST(programs/cmd/tests)
 WINE_CONFIG_PROGRAM(cmdlgtst)
 WINE_CONFIG_PROGRAM(control,,[install])
-WINE_CONFIG_PROGRAM(dxdiag,,[install])
+WINE_CONFIG_PROGRAM(dxdiag,,[install,po])
 WINE_CONFIG_PROGRAM(eject,,[install])
 WINE_CONFIG_PROGRAM(expand,,[install])
 WINE_CONFIG_PROGRAM(explorer,,[install])