#define INIT_STDERR_LOGGING(loglevel_barrier) \
DEFINE_STDERR_LOGGER(stderr_log, loglevel_barrier); \
__printf_2_3 void (*para_log)(int, const char*, ...) = stderr_log;
#define INIT_STDERR_LOGGING(loglevel_barrier) \
DEFINE_STDERR_LOGGER(stderr_log, loglevel_barrier); \
__printf_2_3 void (*para_log)(int, const char*, ...) = stderr_log;