--- a/wine-7.0-rc4/server/security.h	2021-10-12 19:52:55.876645306 +0200
+++ b/wine-7.0-rc4/server/security.h	2021-10-12 19:53:08.605490926 +0200
@@ -21,6 +21,8 @@
 #ifndef __WINE_SERVER_SECURITY_H
 #define __WINE_SERVER_SECURITY_H
 
+#include<unistd.h>
+
 extern const LUID SeIncreaseQuotaPrivilege;
 extern const LUID SeSecurityPrivilege;
 extern const LUID SeTakeOwnershipPrivilege;