Constify filenames and scripts. Fixes #651362.
diff --git a/Python/errors.c b/Python/errors.c
index 95c24a6..e509606 100644
--- a/Python/errors.c
+++ b/Python/errors.c
@@ -637,9 +637,9 @@
/* Warning with explicit origin */
int
-PyErr_WarnExplicit(PyObject *category, char *message,
- char *filename, int lineno,
- char *module, PyObject *registry)
+PyErr_WarnExplicit(PyObject *category, const char *message,
+ const char *filename, int lineno,
+ const char *module, PyObject *registry)
{
PyObject *mod, *dict, *func = NULL;
@@ -679,7 +679,7 @@
to make printing of exceptions believe it is a syntax error. */
void
-PyErr_SyntaxLocation(char *filename, int lineno)
+PyErr_SyntaxLocation(const char *filename, int lineno)
{
PyObject *exc, *v, *tb, *tmp;
@@ -743,7 +743,7 @@
*/
PyObject *
-PyErr_ProgramText(char *filename, int lineno)
+PyErr_ProgramText(const char *filename, int lineno)
{
FILE *fp;
int i;