From 0a5bb093d08386df6e5044a666c9271cd83d72ee Mon Sep 17 00:00:00 2001
From: Jon Evans <jon@craftyjon.com>
Date: Sat, 11 Sep 2021 15:02:59 -0400
Subject: [PATCH] Fix gcc build

---
 common/plugins/cadstar/cadstar_archive_parser.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/common/plugins/cadstar/cadstar_archive_parser.h b/common/plugins/cadstar/cadstar_archive_parser.h
index 239f9277e1..5fa81a3737 100644
--- a/common/plugins/cadstar/cadstar_archive_parser.h
+++ b/common/plugins/cadstar/cadstar_archive_parser.h
@@ -28,6 +28,7 @@
 
 #include <richio.h>
 #include <wx/gdicmn.h>
+#include <functional>
 #include <map>
 #include <set>
 #include <vector>