Issue #28748: Private variable _Py_PackageContext is now of type "const char *"
rather of "char *".
diff --git a/Python/modsupport.c b/Python/modsupport.c
index 35b529b..06bdcab 100644
--- a/Python/modsupport.c
+++ b/Python/modsupport.c
@@ -9,7 +9,7 @@
static PyObject *va_build_value(const char *, va_list, int);
/* Package context -- the full module name for package imports */
-char *_Py_PackageContext = NULL;
+const char *_Py_PackageContext = NULL;
/* Helper for mkvalue() to scan the length of a format */