Ok, I solved it. The MS header file excpt.h has a
#define exception_code _exception_code
which leads to problems if not consistently included. Doh! What a mess.
The bottom line is, that archive_exception.cpp needs to be compiled with exactly the same windows headers included (excpt.h gets included by windows.h) as any sources including archive_exception.hpp, which is generally not possible to ensure.
The only fail-proof way I could see is to always have
#if defined(BOOST_WINDOWS) #include <excpt.h> #endif
inside archive_exception.hpp, globally mapping exception_code to _exception_code. Patch attached. Ok to commit?
Hmmm - let's think about this a little bit. We could change "exception_code" to something else. I don't think it would break user code since user code might refer to the enum member names rather than the "exception_code".
Any news? Regards Hartmut