From c75de1e3304e804be9c073940f396c8a506a005f Mon Sep 17 00:00:00 2001
From: Kenta Murata <mrkn@mrkn.jp>
Date: Tue, 15 Nov 2022 15:58:56 +0900
Subject: [PATCH] [ruby/bigdecimal] Add fallback definition of MAYBE_UNUSED

https://github.com/ruby/bigdecimal/commit/b2123faa52
---
 ext/bigdecimal/bigdecimal.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ext/bigdecimal/bigdecimal.c b/ext/bigdecimal/bigdecimal.c
index 9b1d33ed9d..d6ea35c615 100644
--- a/ext/bigdecimal/bigdecimal.c
+++ b/ext/bigdecimal/bigdecimal.c
@@ -107,6 +107,10 @@ static struct {
 # define RB_OBJ_STRING(obj) StringValueCStr(obj)
 #endif
 
+#ifndef MAYBE_UNUSED
+# define MAYBE_UNUSED(x) x
+#endif
+
 #define BIGDECIMAL_POSITIVE_P(bd) ((bd)->sign > 0)
 #define BIGDECIMAL_NEGATIVE_P(bd) ((bd)->sign < 0)