I'm working with 1.33.1 here and can't upgrade at this point. I'm trying to compile something I compile with VS using mingw. I'm running into this weird problem. The code in question saves and loads a boost::array to an archive. In visual studio the project compiles. With mingw it does not and issues an error about boost::array<double, 4u> not having a serialize member function. So in an effort to try and trick down why it is working fine in visual studio I decided to make a minimal program that saves a boost::array to an archive. I get the same error... I'm trying to include every system file and boost header that would be included but I can't seem to make anything work. Has anyone any idea at all? I've been working on this for a few hours now and just cannot get a minimal program to compile, yet I've compiled the original project many times in VS...including several times today. At a loss here...