Hi, All - I am having some challenges mixing boost and c++0x. My configuration: Ubuntu 10.04, gcc 4.4.3, boost 1.46.1 I've updated the libraries and headers from Ubuntu's stock boost 1.40 level, and I've tried bjam with and without 'toolset=gcc cxxflags=-std=c++0x' Either way, my Eclipse reports several errors in the external libraries: Undefined references to boost::system::generic_category() Undefined references to boost::system::system_category() (both from system and asio error headers) Undefined references to pthread_key_create and pthread_key_delete from asio/detail headers { apologies for not giving specific error details but it'd have to come from a screen shot and that's not appreciated on a mailing list } I do have access to gcc 4.5.1, but it's a custom one for our embedded Atom-based SoC. That is the eventual target, but I haven't seen how to use a specific g++ binary yet. I did see a bug tracker post in one of my google searches but I haven't been able to get back to it. I understand that this is a known issue and a moving target but I would appreciate it if someone would summarize the current state for me. Thanks in advance! -- Don Wilde