+++ /dev/null
-diff -urN texinfo-4.5.org/makeinfo/index.c texinfo-4.5/makeinfo/index.c
---- texinfo-4.5.org/makeinfo/index.c Sun Feb 16 19:00:50 2003
-+++ texinfo-4.5/makeinfo/index.c Sun Feb 16 19:01:33 2003
-@@ -342,9 +342,14 @@
- here; otherwise, when we try to define the pg index again
- just below, it will still point to cp. */
- undefindex (name_index_alist[i]->name);
-- free (name_index_alist[i]->name);
-- free (name_index_alist[i]);
-- name_index_alist[i] = NULL;
-+
-+ /* undefindex sets all this to null in some cases. */
-+ if (name_index_alist[i])
-+ {
-+ free (name_index_alist[i]->name);
-+ free (name_index_alist[i]);
-+ name_index_alist[i] = NULL;
-+ }
- }
- }
-