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-rw-r--r--app/x11_util_internal.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/app/x11_util_internal.h b/app/x11_util_internal.h
index 81f2820..9b65dcd 100644
--- a/app/x11_util_internal.h
+++ b/app/x11_util_internal.h
@@ -4,6 +4,7 @@
#ifndef APP_X11_UTIL_INTERNAL_H_
#define APP_X11_UTIL_INTERNAL_H_
+#pragma once
// This file declares utility functions for X11 (Linux only).
//