2 files changed, 8 insertions, 8 deletions

diff --git a/perlio.c b/perlio.c
index 24293c04f9..b0649df087 100644
--- a/perlio.c
+++ b/perlio.c
@@ -2485,7 +2485,7 @@ PerlIOUnix_write(pTHX_ PerlIO *f, const void *vbuf, Size_t count)
     }
 }
 
-Off_t
+IV
 PerlIOUnix_seek(pTHX_ PerlIO *f, Off_t offset, int whence)
 {
     int fd = PerlIOSelf(f, PerlIOUnix)->fd;
@@ -3061,18 +3061,18 @@ PerlIOStdio_write(pTHX_ PerlIO *f, const void *vbuf, Size_t count)
     return got;
 }
 
-Off_t
+IV
 PerlIOStdio_seek(pTHX_ PerlIO *f, Off_t offset, int whence)
 {
     FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio;
-    return fseek(stdio, offset, whence);
+    return PerlSIO_fseek(stdio, offset, whence);
 }
 
 Off_t
 PerlIOStdio_tell(pTHX_ PerlIO *f)
 {
     FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio;
-    return ftell(stdio);
+    return PerlSIO_ftell(stdio);
 }
 
 IV
@@ -3713,7 +3713,7 @@ PerlIOBuf_write(pTHX_ PerlIO *f, const void *vbuf, Size_t count)
     return written;
 }
 
-Off_t
+IV
 PerlIOBuf_seek(pTHX_ PerlIO *f, Off_t offset, int whence)
 {
     IV code;
@@ -3912,7 +3912,7 @@ PerlIOPending_close(pTHX_ PerlIO *f)
     return PerlIO_close(f);
 }
 
-Off_t
+IV
 PerlIOPending_seek(pTHX_ PerlIO *f, Off_t offset, int whence)
 {
     /*
diff --git a/perliol.h b/perliol.h
index a0d442947d..47fe6fc679 100644
--- a/perliol.h
+++ b/perliol.h
@@ -33,7 +33,7 @@ struct _PerlIO_funcs {
      SSize_t(*Read) (pTHX_ PerlIO *f, void *vbuf, Size_t count);
      SSize_t(*Unread) (pTHX_ PerlIO *f, const void *vbuf, Size_t count);
      SSize_t(*Write) (pTHX_ PerlIO *f, const void *vbuf, Size_t count);
-     Off_t (*Seek) (pTHX_ PerlIO *f, Off_t offset, int whence);
+    IV (*Seek) (pTHX_ PerlIO *f, Off_t offset, int whence);
      Off_t(*Tell) (pTHX_ PerlIO *f);
     IV (*Close) (pTHX_ PerlIO *f);
     /* Stdio-like buffered IO functions */
@@ -176,7 +176,7 @@ extern PerlIO *PerlIOBuf_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param, in
 extern SSize_t PerlIOBuf_read(pTHX_ PerlIO *f, void *vbuf, Size_t count);
 extern SSize_t PerlIOBuf_unread(pTHX_ PerlIO *f, const void *vbuf, Size_t count);
 extern SSize_t PerlIOBuf_write(pTHX_ PerlIO *f, const void *vbuf, Size_t count);
-extern Off_t PerlIOBuf_seek(pTHX_ PerlIO *f, Off_t offset, int whence);
+extern IV PerlIOBuf_seek(pTHX_ PerlIO *f, Off_t offset, int whence);
 extern Off_t PerlIOBuf_tell(pTHX_ PerlIO *f);
 extern IV PerlIOBuf_close(pTHX_ PerlIO *f);
 extern IV PerlIOBuf_flush(pTHX_ PerlIO *f);