bpo-43868: Remove PyOS_ReadlineFunctionPointer from the stable ABI list (GH-25442)
The inclusion of PyOS_ReadlineFunctionPointer in python3dll.c was a mistake.
According to PEP 384:
> functions expecting FILE* are not part of the ABI, to avoid depending
> on a specific version of the Microsoft C runtime DLL on Windows.
https://bugs.python.org/issue43868
diff --git a/Include/cpython/pythonrun.h b/Include/cpython/pythonrun.h
index ffca0e4..2e72d08 100644
--- a/Include/cpython/pythonrun.h
+++ b/Include/cpython/pythonrun.h
@@ -118,3 +118,4 @@ PyAPI_FUNC(PyObject *) PyRun_FileFlags(FILE *fp, const char *p, int s, PyObject
/* Stuff with no proper home (yet) */
PyAPI_FUNC(char *) PyOS_Readline(FILE *, FILE *, const char *);
PyAPI_DATA(PyThreadState*) _PyOS_ReadlineTState;
+PyAPI_DATA(char) *(*PyOS_ReadlineFunctionPointer)(FILE *, FILE *, const char *);
diff --git a/Include/pythonrun.h b/Include/pythonrun.h
index b87bc73..b0a2fc3 100644
--- a/Include/pythonrun.h
+++ b/Include/pythonrun.h
@@ -16,7 +16,6 @@ PyAPI_FUNC(void) PyErr_Display(PyObject *, PyObject *, PyObject *);
/* Stuff with no proper home (yet) */
PyAPI_DATA(int) (*PyOS_InputHook)(void);
-PyAPI_DATA(char) *(*PyOS_ReadlineFunctionPointer)(FILE *, FILE *, const char *);
/* Stack size, in "pointers" (so we get extra safety margins
on 64-bit platforms). On a 32-bit platform, this translates