So, boost 1.34.1 was released back in July 2007. It is however still the current boost shipped with Fedora 10. This is extremely unfortunate as there are many cool advancements in boost over the nearly 2 years since 1.34x. At least rawhide has 1.37, even though 1.38 has been released for over a month.
Looks like I'll have to add another switch to libferris configure.ac to drop some features to be able to compile against old boosts. めんどうくさい!