1 files changed, 2 insertions, 0 deletions
diff --git a/perliol.h b/perliol.h
index 124589b493..76d74a7abb 100644
--- a/perliol.h
+++ b/perliol.h
@@ -24,6 +24,7 @@ struct _PerlIO_funcs {
 		     const char *mode,
 		     int fd, int imode, int perm,
 		     PerlIO *old, int narg, SV **args);
+    IV (*Binmode)(pTHX_ PerlIO *f);
     SV *(*Getarg) (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags);
     IV (*Fileno) (pTHX_ PerlIO *f);
     PerlIO *(*Dup) (pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param, int flags);
@@ -125,6 +126,7 @@ extern IV PerlIOBase_fileno(pTHX_ PerlIO *f);
 extern PerlIO *PerlIOBase_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param, int flags);
 extern IV PerlIOBase_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg);
 extern IV PerlIOBase_popped(pTHX_ PerlIO *f);
+extern IV PerlIOBase_binmode(pTHX_ PerlIO *f);
 extern SSize_t PerlIOBase_read(pTHX_ PerlIO *f, void *vbuf, Size_t count);
 extern SSize_t PerlIOBase_unread(pTHX_ PerlIO *f, const void *vbuf,
 				 Size_t count);