region: Add #include to make header dependency explicit

diff --git a/include/regions.h b/include/regions.h
index e77cd3f0da068843363b3af17d2b4dd4a918ec33..7324255206eb6e4a93551b1a78effa83e6136fd8 100644 (file)
--- a/include/regions.h
+++ b/include/regions.h
@@ -2,6 +2,8 @@
 #ifndef __LABWC_REGIONS_H
 #define __LABWC_REGIONS_H
 
+#include <wlr/util/box.h>
+
 struct seat;
 struct view;
 struct server;