Fix exporting abi only func

Author: methane

Python/getargs.c

@@ -18,7 +18,6 @@ PyAPI_FUNC(int) _PyArg_Parse_SizeT(PyObject *, const char *, ...);
 PyAPI_FUNC(int) _PyArg_ParseTuple_SizeT(PyObject *, const char *, ...);
 PyAPI_FUNC(int) _PyArg_ParseTupleAndKeywords_SizeT(PyObject *, PyObject *,
                                                   const char *, char **, ...);
-PyAPI_FUNC(PyObject *) _Py_BuildValue_SizeT(const char *, ...);
 PyAPI_FUNC(int) _PyArg_VaParse_SizeT(PyObject *, const char *, va_list);
 PyAPI_FUNC(int) _PyArg_VaParseTupleAndKeywords_SizeT(PyObject *, PyObject *,
                                               const char *, char **, va_list);

Python/modsupport.c

@@ -486,7 +486,7 @@ Py_BuildValue(const char *format, ...)
     return retval;
 }
 
-PyObject *
+PyAPI_FUNC(PyObject *) /* abi only */
 _Py_BuildValue_SizeT(const char *format, ...)
 {
     va_list va;
@@ -503,7 +503,7 @@ Py_VaBuildValue(const char *format, va_list va)
     return va_build_value(format, va, 0);
 }
 
-PyObject *
+PyAPI_FUNC(PyObject *) /* abi only */
 _Py_VaBuildValue_SizeT(const char *format, va_list va)
 {
     return va_build_value(format, va, 0);