fix compiler warning in toke.c

The third arg to newSVOP must be non-null, and the macro expansion
for SvREFCNT_inc can give a null value sometimes. So replace it
with SvREFCNT_inc_NN and everyone's happy..

1 files changed, 1 insertions, 1 deletions

diff --git a/toke.c b/toke.c
index 6933e62af4..9642ad331e 100644
--- a/toke.c
+++ b/toke.c
@@ -6597,7 +6597,7 @@ Perl_yylex(pTHX)
 		    goto safe_bareword;
 
 		{
-		    OP *const_op = newSVOP(OP_CONST, 0, SvREFCNT_inc(sv));
+		    OP *const_op = newSVOP(OP_CONST, 0, SvREFCNT_inc_NN(sv));
 		    const_op->op_private = OPpCONST_BARE;
 		    rv2cv_op = newCVREF(0, const_op);
 		}