I have been creating a log with the macro BOOST_LOG_GLOBAL_LOGGER_INIT as :
typedef src::severity_logger_mt<severity_level> logger_t;
BOOST_LOG_GLOBAL_LOGGER_INIT(logger, src::severity_logger_mt)
{
logger_t lg;
logging::add_common_attributes();
...
but I could not find out how to specify my logger has to use a synchronous sink and enable auto-flushing after each log record written :-(
any idea on how to proceed ?