add PyErr_SyntaxLocationEx, to support adding a column offset
diff --git a/Include/pyerrors.h b/Include/pyerrors.h
index 243bc01..fb9ce91 100644
--- a/Include/pyerrors.h
+++ b/Include/pyerrors.h
@@ -229,6 +229,7 @@
/* Support for adding program text to SyntaxErrors */
PyAPI_FUNC(void) PyErr_SyntaxLocation(const char *, int);
+PyAPI_FUNC(void) PyErr_SyntaxLocationEx(const char *, int, int);
PyAPI_FUNC(PyObject *) PyErr_ProgramText(const char *, int);
/* The following functions are used to create and modify unicode