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-rw-r--r--include/ruby/backward/2/gcc_version_since.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/include/ruby/backward/2/gcc_version_since.h b/include/ruby/backward/2/gcc_version_since.h
index 4e2abc45f9..553b982147 100644
--- a/include/ruby/backward/2/gcc_version_since.h
+++ b/include/ruby/backward/2/gcc_version_since.h
@@ -1,4 +1,6 @@
-/** \noop-*-C++-*-vi:ft=cpp
+#ifndef RUBY_BACKWARD2_GCC_VERSION_SINCE_H /*-*-C++-*-vi:se ft=cpp:*/
+#define RUBY_BACKWARD2_GCC_VERSION_SINCE_H
+/**
* @file
* @author Ruby developers <ruby-core@ruby-lang.org>
* @copyright This file is a part of the programming language Ruby.
@@ -31,3 +33,5 @@
((RUBY3_COMPILER_VERSION_MINOR == (y)) && \
(RUBY3_COMPILER_VERSION_PATCH == (z))))))
#endif
+
+#endif /* RUBY_BACKWARD2_GCC_VERSION_SINCE_H */