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--- a/src/qtgui/advsearch_w.h
+++ b/src/qtgui/advsearch_w.h
@@ -16,6 +16,7 @@
  */
 #ifndef _ADVSEARCH_W_H_INCLUDED_
 #define _ADVSEARCH_W_H_INCLUDED_
+#include "autoconfig.h"
 
 #include <vector>