PERLVAR(Inomemok, bool) /* let malloc context handle nomem */
PERLVARI(Ian, U32, 0) /* malloc sequence number */
PERLVARI(Icop_seqmax, U32, 0) /* statement sequence number */
-PERLVARI(Iop_seqmax, U16, 0) /* op sequence number */
PERLVARI(Ievalseq, U32, 0) /* eval sequence number */
PERLVAR(Iorigenviron, char **)
PERLVAR(Iorigalen, U32)