#define CvEVAL_on(cv) (CvUNIQUE_on(cv),SvFAKE_off(cv))
#define CvEVAL_off(cv) CvUNIQUE_off(cv)
-/* BEGIN|CHECK|INIT|END */
+/* BEGIN|CHECK|INIT|UNITCHECK|END */
#define CvSPECIAL(cv) (CvUNIQUE(cv) && SvFAKE(cv))
#define CvSPECIAL_on(cv) (CvUNIQUE_on(cv),SvFAKE_on(cv))
#define CvSPECIAL_off(cv) (CvUNIQUE_off(cv),SvFAKE_off(cv))
#define CvISXSUB_on(cv) (CvFLAGS(cv) |= CVf_ISXSUB)
#define CvISXSUB_off(cv) (CvFLAGS(cv) &= ~CVf_ISXSUB)
+/* Flags for newXS_flags */
+#define XS_DYNAMIC_FILENAME 0x01 /* The filename isn't static */
+
/*
=head1 CV reference counts and CvOUTSIDE