+#ifdef DEBUG
+static int check_debug (const char* option, unsigned long p,
+ char* errbuf, size_t errlen) {
+ if ((int) p <= DEBUG_MAX_LEVEL &&
+ (int) p >= DEBUG_MIN_LEVEL)
+ return (1);
+
+ if (errbuf)
+ snprintf (errbuf, errlen, _("'%d' is invalid for $%s"), (int) p, option);
+ return (0);
+}
+#endif
+