First submitted in http://bugs.gentoo.org/show_bug.cgi?id=143753#c3

deps_cmp seems to expect a single NULL entry, but is unable to cope with two
NULL entries, causing member access through a null pointer and thus SIGSEGV.

2006-08-25 Martin von Gagern <Martin.vGagern@gmx.net>

--- prelink.orig/src/cache.c	2006-08-25 11:27:58.000000000 +0200
+++ prelink/src/cache.c	2006-08-25 11:29:40.000000000 +0200
@@ -336,6 +336,8 @@
   struct prelink_entry *a = * (struct prelink_entry **) A;
   struct prelink_entry *b = * (struct prelink_entry **) B;
 
+  if (a == NULL && b == NULL)
+    return 0; /* fixes http://bugs.gentoo.org/143753 */
   if (a == NULL && b != NULL)
     return 1;
   if (a != NULL && b == NULL)