commit 0b60f64e4343913b4931dc27379d9808e5b78fe1
author Vinay Sajip <vinay_sajip@yahoo.co.uk> Tue Oct 15 08:26:12 2019 +0100
committer GitHub <noreply@github.com> Tue Oct 15 08:26:12 2019 +0100
tree 197eeeff16c9146b5040bed69d1e0d95c5fdc87b
parent 4d202281c128e2026e78fc5f4cc752b1dafbf3ad

bpo-11410: Standardize and use symbol visibility attributes across POSIX and Windows. (GH-16347)

Modules/_io/_iomodule.h

diff --git a/Modules/_io/_iomodule.h b/Modules/_io/_iomodule.h
index 4d318ac..a8f3951 100644
--- a/Modules/_io/_iomodule.h
+++ b/Modules/_io/_iomodule.h
@@ -2,6 +2,8 @@
  * Declarations shared between the different parts of the io module
  */
 
+#include "exports.h"
+
 /* ABCs */
 extern PyTypeObject PyIOBase_Type;
 extern PyTypeObject PyRawIOBase_Type;
@@ -183,4 +185,4 @@
 extern PyObject *_PyIO_empty_str;
 extern PyObject *_PyIO_empty_bytes;
 
-extern PyTypeObject _PyBytesIOBuffer_Type;
+extern Py_EXPORTED_SYMBOL PyTypeObject _PyBytesIOBuffer_Type;

Modules/_io/bytesio.c

diff --git a/Modules/_io/bytesio.c b/Modules/_io/bytesio.c
index a5f4c47..b5d308a 100644
--- a/Modules/_io/bytesio.c
+++ b/Modules/_io/bytesio.c
@@ -1124,7 +1124,7 @@
     (releasebufferproc) bytesiobuf_releasebuffer,
 };
 
-PyTypeObject _PyBytesIOBuffer_Type = {
+Py_EXPORTED_SYMBOL PyTypeObject _PyBytesIOBuffer_Type = {
     PyVarObject_HEAD_INIT(NULL, 0)
     "_io._BytesIOBuffer",                      /*tp_name*/
     sizeof(bytesiobuf),                        /*tp_basicsize*/