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-rw-r--r--fpga_interchange/site_router.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/fpga_interchange/site_router.h b/fpga_interchange/site_router.h
index 561dae9d..6af32747 100644
--- a/fpga_interchange/site_router.h
+++ b/fpga_interchange/site_router.h
@@ -22,6 +22,9 @@
#error Include "site_router.h" via "nextpnr.h" only.
#endif
+#ifndef SITE_ROUTER_H
+#define SITE_ROUTER_H
+
NEXTPNR_NAMESPACE_BEGIN
struct Context;
@@ -43,3 +46,5 @@ struct SiteRouter
};
NEXTPNR_NAMESPACE_END
+
+#endif /* SITE_ROUTER_H */