Remove nonexistant glamor flags from glamor_init

index b8bca17..ca84df6 100644
@@ -217,10 +217,14 @@ nouveau_glamor_init(ScreenPtr screen)
    ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
    NVPtr pNv = NVPTR(scrn);
 
+#ifndef GLAMOR_USE_SCREEN
+    if (!glamor_init(screen, GLAMOR_USE_EGL_SCREEN)) {
+#else
    if (!glamor_init(screen, GLAMOR_INVERTED_Y_AXIS |
                 GLAMOR_USE_EGL_SCREEN |
                 GLAMOR_USE_SCREEN |
                 GLAMOR_USE_PICTURE_SCREEN)) {
+#endif
        xf86DrvMsg(scrn->scrnIndex, X_ERROR,
               "[GLAMOR] failed to initialise\n");
        return FALSE;