https://git.ruby-lang.org/ruby.git/commit/?id=c4fc737f75

From c4fc737f755f35ae1ddcf41dd06aad7b23be21da Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=8D=9C=E9=83=A8=E6=98=8C=E5=B9=B3?=
 <shyouhei@r...>
Date: Wed, 22 Jul 2020 16:11:08 +0900
Subject: include/ruby/util.h: delete unused codes

- util.h includes defines.h,
- ... which includes ruby/backward/2/stdarg.h,
- ... which always defines _.

This `#ifndef _` must never happen.

diff --git a/include/ruby/util.h b/include/ruby/util.h
index 07d9f32..af022da 100644
--- a/include/ruby/util.h
+++ b/include/ruby/util.h
@@ -14,27 +14,6 @@ https://github.com/ruby/ruby/blob/trunk/include/ruby/util.h#L14
 #include "ruby/internal/dllexport.h"
 #include "ruby/defines.h"
 
-#ifndef _
-#ifdef __cplusplus
-# ifndef  HAVE_PROTOTYPES
-#  define HAVE_PROTOTYPES 1
-# endif
-# ifndef  HAVE_STDARG_PROTOTYPES
-#  define HAVE_STDARG_PROTOTYPES 1
-# endif
-#endif
-#ifdef HAVE_PROTOTYPES
-# define _(args) args
-#else
-# define _(args) ()
-#endif
-#ifdef HAVE_STDARG_PROTOTYPES
-# define __(args) args
-#else
-# define __(args) ()
-#endif
-#endif
-
 RBIMPL_SYMBOL_EXPORT_BEGIN()
 
 #define DECIMAL_SIZE_OF_BITS(n) (((n) * 3010 + 9998) / 9999)
-- 
cgit v0.10.2


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