It appears that almost all of the Boost.Intrusive tests (at URL:http://tinyurl.com/2bzhglh, for example) fail on IBM's compiler. I get similar results, like the following from the test suite, from my own code: An expression of type "overloaded function: U::to_node_ptr" cannot be converted to type "boost::intrusive::list_node *(boost::intrusive::detail::base_hook_traits,0>,boost::intrusive::list_node_traits,1,boost::intrusive::default_tag,1>::*)(testvalue,0> &)" Is there an easy workaround for this issue? Is there a plan to fix it? This has also been reported a couple of months ago as bug 4412 (URL:https://svn.boost.org/trac/boost/ticket/4412). Thank you. -- Jeremiah Willcock