Tell ppport.h that we need newRV_noinc.

diff --git a/MOP.xs b/MOP.xs
index 9be66a1..fe86360 100644 (file)
--- a/MOP.xs
+++ b/MOP.xs
@@ -9,6 +9,7 @@ This shuts up warnings from gcc -Wall
 #include "perl.h"
 #include "XSUB.h"
 
+#define NEED_newRV_noinc
 #define NEED_sv_2pv_flags
 #define NEED_sv_2pv_nolen
 #include "ppport.h"