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-rw-r--r--src/ruby.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/ruby.h b/src/ruby.h
index 343583dd..dd5dce29 100644
--- a/src/ruby.h
+++ b/src/ruby.h
@@ -32,6 +32,10 @@
*/
+#ifndef LIBDCP_RUBY_H
+#define LIBDCP_RUBY_H
+
+
#include <string>
@@ -69,3 +73,6 @@ bool operator!=(Ruby const& a, Ruby const& b);
}
+
+#endif
+