--- a/wine-7.1/server/security.h	2022-01-29 08:23:43.759508270 +0100
+++ b/wine-7.1/server/security.h	2022-01-29 08:24:07.976443565 +0100
@@ -22,6 +22,7 @@
 #define __WINE_SERVER_SECURITY_H
 
 #include <sys/types.h>
+#include <unistd.h>
 
 extern const struct luid SeIncreaseQuotaPrivilege;
 extern const struct luid SeSecurityPrivilege;