Hi all. I've tried to test the boost IPC communication using: - boost::interprocess::shared_memory_object - boost::interprocess::mapped_region - boost::interprocess::interprocess_mutex - boost::interprocess::interprocess_condition So I created shared memory, and when the first process put the data into the shared memory, call the notify_one() method, to let the second process know, taht there are data in the shared memory. Everything is OK, when I'm using gcc 4.4.1 on linux. But when I tried to cross-compile the sources using arm-linux toolchain, which is based on gcc 3.3.2, I'm always geting error: "#error No atomic operations implemented for this platform, sorry!" I know, that if I will use gcc 4 and above, it will works. But is there any workaround or fix, how to compile boost::interprocess on gcc 3.3.2? Thank you for your advices. Dundee.