https://git.ruby-lang.org/ruby.git/commit/?id=f44114b502

From f44114b502f4ae793f95d0be14b094cfe7c4c0e7 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Tue, 28 Jul 2020 16:43:38 +0900
Subject: Do not assume all compilers accept same flags as gcc


diff --git a/spec/ruby/optional/capi/spec_helper.rb b/spec/ruby/optional/capi/spec_helper.rb
index 3b13e08..2c36ead 100644
--- a/spec/ruby/optional/capi/spec_helper.rb
+++ b/spec/ruby/optional/capi/spec_helper.rb
@@ -76,7 +76,7 @@ def compile_extension(name) https://github.com/ruby/ruby/blob/trunk/spec/ruby/optional/capi/spec_helper.rb#L76
           $ruby = ENV.values_at('RUBY_EXE', 'RUBY_FLAGS').join(' ')
           # MRI magic to consider building non-bundled extensions
           $extout = nil
-          $warnflags << ' -Wno-declaration-after-statement'
+          append_cflags '-Wno-declaration-after-statement'
           create_makefile(#{ext.inspect})
         RUBY
         output = ruby_exe("extconf.rb")
-- 
cgit v0.10.2


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