#ifdef ENABLE_ERROR_MESSAGES
extern bool __wimlib_print_errors;
extern void wimlib_error(const char *format, ...);
+extern void wimlib_warning(const char *format, ...);
# define ERROR wimlib_error
+# define WARNING wimlib_warning
#else
# define ERROR(format, ...)
+# define WARNING(format, ...)
#endif /* ENABLE_ERROR_MESSAGES */
#if defined(ENABLE_DEBUG) || defined(ENABLE_MORE_DEBUG)