https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61679
--- Comment #1 from Trevor Saunders <tsaunders at mozilla dot com> ---
The following patch compiles with 4.9 for me, but I don't have easy
access to a machine with 4.5 on it, would you mind testing if it works
for you?
diff --git a/gcc/hash-table.h b/gcc/hash-table.h
index 22af12f..2356f8d 100644
--- a/gcc/hash-table.h
+++ b/gcc/hash-table.h
@@ -663,7 +663,7 @@ hash_table<Descriptor, Allocator, false>::~hash_table ()
HASH is the hash value for the element to be inserted. */
template<typename Descriptor, template<typename Type> class Allocator>
-typename Descriptor::value_type **
+typename hash_table<Descriptor, Allocator, false>::value_type **
hash_table<Descriptor, Allocator, false>
::find_empty_slot_for_expand (hashval_t hash)
{
@@ -803,7 +803,7 @@ hash_table<Descriptor, Allocator, false>::clear_slot
(value_type **slot)
be used to insert or delete an element. */
template<typename Descriptor, template<typename Type> class Allocator>
-typename Descriptor::value_type *
+typename hash_table<Descriptor, Allocator, false>::value_type *
hash_table<Descriptor, Allocator, false>
::find_with_hash (const compare_type *comparable, hashval_t hash)
{
