1 files changed, 14 insertions, 0 deletions
diff --git a/sv.h b/sv.h
index 37b79c96bf..8e2417cc7d 100644
--- a/sv.h
+++ b/sv.h
@@ -1441,6 +1441,20 @@ the scalar's value cannot change unless written to.
 		     }							\
 		 } STMT_END
 
+#ifdef PERL_CORE
+/* Code that crops up in three places to take a scalar and ready it to hold
+   a reference */
+#  define prepare_SV_for_RV(sv)						\
+    STMT_START {							\
+		    if (SvTYPE(sv) < SVt_PV && SvTYPE(sv) != SVt_IV)	\
+			sv_upgrade(sv, SVt_IV);				\
+		    else if (SvPVX_const(sv)) {				\
+			SvPV_free(sv);					\
+			SvLEN_set(sv, 0);				\
+                        SvCUR_set(sv, 0);				\
+		    }							\
+		 } STMT_END
+#endif
 
 #define PERL_FBM_TABLE_OFFSET 1	/* Number of bytes between EOS and table */