#define specialWARN(x) ((x) == pWARN_STD || (x) == pWARN_ALL || \
(x) == pWARN_NONE)
+/* if PL_warnhook is set to this value, then warnings die */
+#define PERL_WARNHOOK_FATAL (((SV*)0) + 1)
+
/* Warnings Categories added in Perl 5.008 */
#define WARN_ALL 0