#if defined(USE_ITHREADS)
PERLVAR(Iregex_pad, SV**) /* All regex objects */
PERLVAR(Iregex_padav, AV*) /* All regex objects */
+
+#ifdef USE_REENTRANT_API
+PERLVAR(Ireentrant_buffer, REBUF*) /* were we store _r buffers */
+#endif
+
#endif
/* New variables must be added to the very end for binary compatibility.