From 795fb51f80e0cda19d39480bdaa26ecdab3557a9 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Wed, 28 Apr 2021 18:40:45 +0900
Subject: NDEBUG is ignored since Ruby 3.0

---
 ext/digest/rmd160/extconf.rb | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'ext')

diff --git a/ext/digest/rmd160/extconf.rb b/ext/digest/rmd160/extconf.rb
index ffa70ee803..a923dcf9be 100644
--- a/ext/digest/rmd160/extconf.rb
+++ b/ext/digest/rmd160/extconf.rb
@@ -6,7 +6,10 @@
 require "mkmf"
 require File.expand_path("../../digest_conf", __FILE__)
 
-$defs << "-DNDEBUG" << "-DHAVE_CONFIG_H"
+if try_static_assert("RUBY_API_VERSION_MAJOR < 3", "ruby/version.h")
+  $defs << "-DNDEBUG"
+end
+$defs << "-DHAVE_CONFIG_H"
 
 $objs = [ "rmd160init.#{$OBJEXT}" ]
 
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