--- a/warning.c
+++ b/warning.c
@@ -2,6 +2,9 @@
 #include "netwatch.h"
 #include <syslog.h>
 #include <stdio.h>
+#include <time.h> /* time() ctime() */
+#include <stdlib.h> /* system() */
+#include <unistd.h> /* unlink() */
 
 static FILE *tmpfp;
 static char tmpname[256];
--- a/netwatch.c
+++ b/netwatch.c
@@ -71,6 +71,7 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <unistd.h>
+#include <ctype.h> /* isalnum() isspace() ispunct() */
 /*
    * #include <sys/socket.h> 
 */