#ifdef USE_ITHREADS
#define PM_GETRE(o) ((REGEXP*)SvIVX(PL_regex_pad[(o)->op_pmoffset]))
#define PM_SETRE(o,r) (sv_setiv(PL_regex_pad[(o)->op_pmoffset], (IV)r))
+#define PM_GETRE_SAFE(o) (PL_regex_pad ? PM_GETRE(o) : (REGEXP*)0)
+#define PM_SETRE_SAFE(o,r) if (PL_regex_pad) PM_SETRE(o,r)
#else
#define PM_GETRE(o) ((o)->op_pmregexp)
#define PM_SETRE(o,r) ((o)->op_pmregexp = (r))
+#define PM_GETRE_SAFE PM_GETRE
+#define PM_SETRE_SAFE PM_SETRE
#endif
#define PMdf_USED 0x01 /* pm has been used once already */