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-rw-r--r--include/pugl/detail/x11.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/pugl/detail/x11.h b/include/pugl/detail/x11.h
index b5ca75c..9788191 100644
--- a/include/pugl/detail/x11.h
+++ b/include/pugl/detail/x11.h
@@ -19,6 +19,9 @@
@brief Shared definitions for X11 implementation.
*/
+#ifndef PUGL_DETAIL_X11_H
+#define PUGL_DETAIL_X11_H
+
#include "pugl/detail/types.h"
#include "pugl/pugl.h"
@@ -74,3 +77,5 @@ struct PuglInternalsImpl {
};
PuglStatus puglX11StubConfigure(PuglView* view);
+
+#endif // PUGL_DETAIL_X11_H