diff -r 47618b00405b Modules/_dbmmodule.c
--- a/Modules/_dbmmodule.c	Sat Oct 19 10:45:48 2013 +0300
+++ b/Modules/_dbmmodule.c	Sat Oct 19 18:52:36 2013 +0800
@@ -44,7 +44,7 @@
 static PyObject *DbmError;
 
 static PyObject *
-newdbmobject(const char *file, int flags, int mode)
+newdbmobject(char *file, int flags, int mode)
 {
     dbmobject *dp;
 
@@ -398,13 +398,13 @@
     {"open", (PyCFunction)dbmopen, METH_VARARGS, dbmopen__doc__},
 
 static PyObject *
-dbmopen_impl(PyObject *self, const char *filename, const char *flags, int mode);
+dbmopen_impl(PyObject *self, char *filename, const char *flags, int mode);
 
 static PyObject *
 dbmopen(PyObject *self, PyObject *args)
 {
     PyObject *return_value = NULL;
-    const char *filename;
+    char *filename;
     const char *flags = "r";
     int mode = 438;
 
@@ -419,7 +419,7 @@
 }
 
 static PyObject *
-dbmopen_impl(PyObject *self, const char *filename, const char *flags, int mode)
+dbmopen_impl(PyObject *self, char *filename, const char *flags, int mode)
 /*[clinic checksum: 61007c796d38af85c8035afa769fb4bb453429ee]*/
 {
     int iflags;