Crossposting to Boost.Build...
error_code.cpp contains the following #defines:
#define _CRT_SECURE_NO_DEPRECATE #define _SCL_SECURE_NO_DEPRECATE
It should first check that these macros are not defined already. Otherwise users who #define these macros on the command line will received duplicate definition errors, as I am. Also, you might consider adding:
#define _SECURE_SCL 0
for VC 9.
I'ld rather have it somewhere in Boost.Config. Every library has to deal with these, so why not silence the warnings once and for all.
In fact I'ld suggest to add: // // silence 'secure' and 'deprecate' warnings // #if (_MSC_VER >= 1400) && !defined(BOOST_ENABLE_DEPRECATE_WARNINGS) #define _CRT_SECURE_NO_DEPRECATE #define _SCL_SECURE_NO_DEPRECATE #endif #if (_MSC_VER >= 1400) && !defined(BOOST_ENABLE_SECURE_WARNINGS) #define _CRT_SECURE_NO_WARNINGS #define _SCL_SECURE_NO_WARNINGS #endif to the file boost/config/compiler/visual.hpp, which should solve the issue for all libraries. I'm not sure about the _SECURE_SCL for VC9 (I don't use this compiler). Any comments? Regards Hartmut