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-rw-r--r--ruby_assert.h23
1 files changed, 11 insertions, 12 deletions
diff --git a/ruby_assert.h b/ruby_assert.h
index fa15da1e25..d8f7ddd35b 100644
--- a/ruby_assert.h
+++ b/ruby_assert.h
@@ -1,15 +1,14 @@
+#ifndef RUBY_TOPLEVEL_ASSERT_H /*-*-C-*-vi:se ft=c:*/
+#define RUBY_TOPLEVEL_ASSERT_H
+/**
+ * @author Ruby developers <ruby-core@ruby-lang.org>
+ * @copyright This file is a part of the programming language Ruby.
+ * Permission is hereby granted, to either redistribute and/or
+ * modify this file, provided that the conditions mentioned in the
+ * file COPYING are met. Consult the file for details.
+ */
#include "ruby/assert.h"
-
-#if !defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L)
-/* C89 compilers are required to support strings of only 509 chars. */
-/* can't use RUBY_ASSERT for such compilers. */
-#include <assert.h>
-#else
#undef assert
-#define assert RUBY_ASSERT
-#endif
+#define assert RUBY_ASSERT_NDEBUG
-#ifdef NDEBUG
- #undef RUBY_NDEBUG
- #define RUBY_NDEBUG 1
-#endif
+#endif /* RUBY_TOPLEVEL_ASSERT_H */