#define UPKG_FLAG_INSECURE 0x0010
#define UPKG_FLAG_REQUIRED 0x8000
+#define UPKG_OBJ_FLAG_TRANSACTIONAL 0x00000001
+#define UPKG_OBJ_FLAG_UNREACHABLE 0x00000002
+#define UPKG_OBJ_FLAG_PUBLIC 0x00000004
+#define UPKG_OBJ_FLAG_TAG_IMPORT 0x00000008
+#define UPKG_OBJ_FLAG_TAG_EXPORT 0x00000010
+#define UPKG_OBJ_FLAG_SOURCE_MODIFIED 0x00000020
+#define UPKG_OBJ_FLAG_TAG_GARBAGE 0x00000040
+#define UPKG_OBJ_FLAG_NEED_LOAD 0x00000200
+#define UPKG_OBJ_FLAG_HIGHLIGHT_NAME 0x00000400
+
#define UPKG_HDR_MAGIC 0x9e2a83c1
#define UPKG_HDR_SIZE 36