#define G_WARN_ALL_MASK (G_WARN_ALL_ON|G_WARN_ALL_OFF)
#define WARN_STD Nullsv
-#define WARN_ALL (&PL_sv_yes) /* use warnings 'all' */
-#define WARN_NONE (&PL_sv_no) /* no warnings 'all' */
+#define WARN_ALL (Nullsv+1) /* use warnings 'all' */
+#define WARN_NONE (Nullsv+2) /* no warnings 'all' */
#define specialWARN(x) ((x) == WARN_STD || (x) == WARN_ALL || \
(x) == WARN_NONE)