diff -r cfe13185fd02 -r 6d97eb820cc1 thermferm/one-wire.c
--- a/thermferm/one-wire.c	Sat Apr 20 11:34:00 2024 +0200
+++ b/thermferm/one-wire.c	Sat Apr 20 11:48:20 2024 +0200
@@ -159,7 +159,7 @@
 		pthread_mutex_unlock(&mutexes[LOCK_ONE_WIRE]);
 	    }
 	} else if (strcmp(w1type, (char *)"00")) {
-	    syslog(LOG_NOTICE, "One-wire device %ld %s unknown", strlen(buffer), buffer);
+	    syslog(LOG_NOTICE, "One-wire device %ld %s unknown", (long)strlen(buffer), buffer);
 	}
     }
     fclose(fp);