vlc.h: Don't actually put the __attribute__((deprecated)) when the header is used by libvlc.

include/vlc/vlc.h

@@ -169,11 +169,16 @@ struct vlc_list_t
  *****************************************************************************/
 
 #ifndef VLC_DEPRECATED_API
-#if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
+# ifdef __LIBVLC__
+/* Avoid unuseful warnings from libvlc with our deprecated APIs */
+#    define VLC_DEPRECATED_API VLC_PUBLIC_API
+# else /* __LIBVLC__ */
+#  if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
 #    define VLC_DEPRECATED_API VLC_PUBLIC_API __attribute__((deprecated))
-#else
+#  else
 #    define VLC_DEPRECATED_API VLC_PUBLIC_API
-#endif
+#  endif
+# endif /* __LIBVLC__ */
 #endif
 
 /*****************************************************************************