--- lrzsz-0.12.20.orig/src/lsyslog.c	1998-12-29 18:27:46.000000000 +0100
+++ lrzsz-0.12.20/src/lsyslog.c	2026-05-12 20:50:34.361582055 +0200
@@ -18,12 +18,14 @@
   02111-1307, USA.
 
 */
+#define _GNU_SOURCE
 #include "config.h"
 #ifdef ENABLE_SYSLOG
 #include "zglobal.h"
 #include <pwd.h>
 #include <stdlib.h>
 #include <string.h>
+#include <stdio.h>
 #endif
 
 #if __STDC__
