--- bin/named/os.c.orig	2024-07-08 23:09:16
+++ bin/named/os.c	2024-07-25 10:59:00
@@ -635,7 +635,12 @@
 		return;
 	}
 
-	rl.rlim_cur = rl.rlim_max;
+#if defined(__APPLE__)
+	/* asking for more than OPEN_MAX fails on some macOS versions */
+    rl.rlim_cur = (OPEN_MAX < rl.rlim_max ? OPEN_MAX : rl.rlim_max);
+#else
+    rl.rlim_cur = rl.rlim_max;
+#endif
 	r = setrlimit(RLIMIT_NOFILE, &rl);
 	if (r != 0) {
 		goto fail;