PERLVAR(IArgv, char **) /* stuff to free from do_aexec, vfork safe */
PERLVAR(ICmd, char *) /* stuff to free from do_aexec, vfork safe */
PERLVAR(Imystrk, SV *) /* temp key string for do_each() */
-PERLVAR(Idumplvl, I32) /* indentation level on syntax tree dump */
PERLVAR(Ioldlastpm, PMOP *) /* for saving regexp context in debugger */
PERLVAR(Igensym, I32) /* next symbol for getsym() to define */
PERLVAR(Ipreambled, bool)
#ifdef USE_THREADS
PERLVAR(Ithrsv, SV *) /* struct perl_thread for main thread */
PERLVARI(Ithreadnum, U32, 0) /* incremented each thread creation */
+PERLVAR(Istrtab_mutex, perl_mutex) /* Mutex for string table access */
#endif /* USE_THREADS */
PERLVARI(Ibytecode_iv_overflows,int, 0) /* from bytecode.h */