--- a/main.c	2019-01-28 18:21:37.000000000 +0100
+++ b/main.c	2019-06-01 18:59:48.889202981 +0200
@@ -20,6 +20,10 @@
 #include "archcommon.h"
 #include "header.h"
 
+#ifndef FNM_EXTMATCH
+#define FNM_EXTMATCH 0
+#endif
+
 static const char *argv0;
 bool do_interface_lock = true;
 bool no_act = false;