From 639f6e2799f33a7889c4ca48ae0e314e67214dfc Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Mon, 11 Feb 2019 15:17:56 +0900
Subject: [PATCH] No strict argument check for blocks when keyword arguments
 exist; ref #4270

---
 src/vm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/vm.c b/src/vm.c
index 49c2bb85c9..7904162be7 100644
--- a/src/vm.c
+++ b/src/vm.c
@@ -1810,7 +1810,8 @@ mrb_vm_exec(mrb_state *mrb, struct RProc *proc, mrb_code *pc)
             kdict = argv[argc-1];
             mrb_hash_check_kdict(mrb, kdict);
           }
-          else if (r || argc <= m1+m2+o) {
+          else if (r || argc <= m1+m2+o
+                   || !(mrb->c->ci->proc && MRB_PROC_STRICT_P(mrb->c->ci->proc))) {
             kdict = mrb_hash_new(mrb);
             kargs = 0;
           }