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Diffstat (limited to 'clang/test/Modules/Inputs/dummy.h')
-rw-r--r--clang/test/Modules/Inputs/dummy.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/clang/test/Modules/Inputs/dummy.h b/clang/test/Modules/Inputs/dummy.h
index 6e1ac74e44f..cad83154dc2 100644
--- a/clang/test/Modules/Inputs/dummy.h
+++ b/clang/test/Modules/Inputs/dummy.h
@@ -1,3 +1,5 @@
// This module only exists to make local decl IDs and global decl IDs different.
-
+#ifndef DUMMY_H
+#define DUMMY_H
struct Dummy {} extern *dummy1, *dummy2, *dummy3;
+#endif
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