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-rw-r--r--variable.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/variable.h b/variable.h
index 67fe480149..ec62023a8b 100644
--- a/variable.h
+++ b/variable.h
@@ -1,3 +1,13 @@
+#ifndef RUBY_TOPLEVEL_VARIABLE_H /*-*-C-*-vi:se ft=c:*/
+#define RUBY_TOPLEVEL_VARIABLE_H
+/**
+ * @file
+ * @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.
+ */
/* per-object */
@@ -7,3 +17,5 @@ struct gen_ivtbl {
};
struct st_table *rb_ivar_generic_ivtbl(void);
+
+#endif /* RUBY_TOPLEVEL_VARIABLE_H */