Issue #7622: Improve the split(), rsplit(), splitlines() and replace()
methods of bytes, bytearray and unicode objects by using a common
implementation based on stringlib's fast search.  Patch by Florent Xicluna.
diff --git a/Objects/stringlib/stringdefs.h b/Objects/stringlib/stringdefs.h
index 4a95258..84e4616 100644
--- a/Objects/stringlib/stringdefs.h
+++ b/Objects/stringlib/stringdefs.h
@@ -11,6 +11,8 @@
 #define STRINGLIB_TYPE_NAME      "string"
 #define STRINGLIB_PARSE_CODE     "S"
 #define STRINGLIB_EMPTY          nullstring
+#define STRINGLIB_ISSPACE        Py_ISSPACE
+#define STRINGLIB_ISLINEBREAK(x) ((x == '\n') || (x == '\r'))
 #define STRINGLIB_ISDECIMAL(x)   ((x >= '0') && (x <= '9'))
 #define STRINGLIB_TODECIMAL(x)   (STRINGLIB_ISDECIMAL(x) ? (x - '0') : -1)
 #define STRINGLIB_TOUPPER        Py_TOUPPER
@@ -21,8 +23,11 @@
 #define STRINGLIB_NEW            PyString_FromStringAndSize
 #define STRINGLIB_RESIZE         _PyString_Resize
 #define STRINGLIB_CHECK          PyString_Check
+#define STRINGLIB_CHECK_EXACT    PyString_CheckExact
 #define STRINGLIB_TOSTR          PyObject_Str
 #define STRINGLIB_GROUPING       _PyString_InsertThousandsGrouping
 #define STRINGLIB_GROUPING_LOCALE _PyString_InsertThousandsGroupingLocale
 
+#define STRINGLIB_WANT_CONTAINS_OBJ 1
+
 #endif /* !STRINGLIB_STRINGDEFS_H */