First time Boost user, trying to get it to build on VS C++ v8 .. and to be quite honest, haven't touched C++ itself for about 5 years so it's taken me a cuppla hours to even get to this point ;) I know the new version of Boost.build (2.0 v11) was only released this morning, but I think I may have found a bug. I get an assertion when I try to "build vc8" (which I've attached to the bottom of the email). For some reason it's trying to call _loctotime64_t, when I'm running on a 32 bit machine. While that's a little weird, what's weirder is that the assertion fails. And even weird than that - I've commented out the assertion from dtoxtm64.c, and it still comes up! Someone lend a hand to a newbie please ;) gleNN --------------------------- Microsoft Visual C++ Debug Library --------------------------- Debug Assertion Failed! Program: ... File: dtoxtm64.c Line: 67 Expression: ( ( ( long )( yr - 1900 ) >= _BASE_YEAR ) && ( ( long )( yr - 1900 ) <= _MAX_YEAR64 ) ) For information on how your program can cause an assertion failure, see the Visual C++ documentation on asserts. (Press Retry to debug the application) --------------------------- Abort Retry Ignore ---------------------------