vfprintf(stderr, fmt, argp); \
va_end(argp); \
}
+/**
+ * Define the standard log function and activate it.
+ *
+ * \param loglevel_barrier See \ref DEFINE_STDERR_LOGGER.
+ */
#define INIT_STDERR_LOGGING(loglevel_barrier) \
DEFINE_STDERR_LOGGER(stderr_log, loglevel_barrier); \
__printf_2_3 void (*para_log)(int, const char*, ...) = stderr_log;