+#if defined(PERL_IN_DOIO_C)
+s |IO * |openn_setup |NN GV *gv|NN char *mode|NN PerlIO **saveifp \
+ |NN PerlIO **saveofp|NN int *savefd \
+ |NN char *savetype
+s |bool |openn_cleanup |NN GV *gv|NN IO *io|NULLOK PerlIO *fp \
+ |NN char *mode|NN const char *oname \
+ |NULLOK PerlIO *saveifp|NULLOK PerlIO *saveofp \
+ |int savefd|char savetype|int writing \
+ |bool was_fdopen|NULLOK const char *type
+#endif