From b14957f31fc72a8b69394fc3bccc8df1baf22498 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Fri, 14 Feb 2020 15:59:36 +0900
Subject: [PATCH] Prefer keyword arguments

---
 ext/io/console/console.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/ext/io/console/console.c b/ext/io/console/console.c
index bfba1e7..1b899af 100644
--- a/ext/io/console/console.c
+++ b/ext/io/console/console.c
@@ -111,6 +111,11 @@ rawmode_opt(int *argcp, VALUE *argv, int min_argc, int max_argc, rawmode_arg_t *
     int argc = *argcp;
     rawmode_arg_t *optp = NULL;
     VALUE vopts = Qnil;
+#ifdef RB_SCAN_ARGS_PASS_CALLED_KEYWORDS
+    if (argc > 0) {
+	argc = rb_scan_args(argc, argv, "*:", NULL, &vopts);
+    }
+#else
     if (argc > min_argc)  {
 	vopts = rb_check_hash_type(argv[argc-1]);
 	if (!NIL_P(vopts)) {
@@ -120,6 +125,7 @@ rawmode_opt(int *argcp, VALUE *argv, int min_argc, int max_argc, rawmode_arg_t *
 	    if (!vopts) vopts = Qnil;
 	}
     }
+#endif
     rb_check_arity(argc, min_argc, max_argc);
     if (!NIL_P(vopts)) {
 	VALUE vmin = rb_hash_aref(vopts, ID2SYM(id_min));