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-rw-r--r--intrpvar.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/intrpvar.h b/intrpvar.h
index 4a62779288..3a55eb9b3d 100644
--- a/intrpvar.h
+++ b/intrpvar.h
@@ -674,6 +674,10 @@ PERLVARI(Islab_count, U32, 0) /* Size of the array */
/* Can shared object be destroyed */
PERLVARI(Idestroyhook, destroyable_proc_t, MEMBER_TO_FPTR(Perl_sv_destroyable))
+#ifdef DEBUG_LEAKING_SCALARS
+PERLVARI(Isv_serial, U32, 0) /* SV serial number, used in sv.c */
+#endif
+
/* If you are adding a U8 or U16, check to see if there are 'Space' comments
* above on where there are gaps which currently will be structure padding. */