diff -up mozilla-release/dom/plugins/base/npapi.h.BAD mozilla-release/dom/plugins/base/npapi.h
--- mozilla-release/dom/plugins/base/npapi.h.BAD	2011-12-06 13:31:16.364405916 -0500
+++ mozilla-release/dom/plugins/base/npapi.h	2011-12-06 13:31:47.131109006 -0500
@@ -379,7 +379,7 @@ typedef enum {
   , NPPVpluginCoreAnimationLayer = 1003
 #endif
 
-#if (MOZ_PLATFORM_MAEMO == 5) || (MOZ_PLATFORM_MAEMO == 6)
+#if defined(MOZ_PLATFORM_MAEMO) && ((MOZ_PLATFORM_MAEMO == 5) || (MOZ_PLATFORM_MAEMO == 6))
   , NPPVpluginWindowlessLocalBool = 2002
 #endif
 } NPPVariable;
@@ -432,7 +432,7 @@ typedef enum {
   , NPNVsupportsCompositingCoreAnimationPluginsBool = 74656 /* TRUE if the browser supports
                                                                CA model compositing */
 #endif
-#if (MOZ_PLATFORM_MAEMO == 5) || (MOZ_PLATFORM_MAEMO == 6)
+#if defined(MOZ_PLATFORM_MAEMO) && ((MOZ_PLATFORM_MAEMO == 5) || (MOZ_PLATFORM_MAEMO == 6))
   , NPNVSupportsWindowlessLocal = 2002
 #endif
 } NPNVariable;