diff -Naur claws-mail-4.1.1.orig/src/common/utils.h claws-mail-4.1.1/src/common/utils.h
--- claws-mail-4.1.1.orig/src/common/utils.h	2022-05-06 12:11:04.000000000 +0200
+++ claws-mail-4.1.1/src/common/utils.h	2022-11-18 15:52:41.647794172 +0100
@@ -24,6 +24,7 @@
 #define __UTILS_H__
 
 #ifdef HAVE_CONFIG_H
+#  include "config.h"
 #include "claws-features.h"
 #endif