$OpenBSD: patch-cnagios_c,v 1.1 2009/10/01 14:09:55 sthen Exp $
--- cnagios.c.orig	Sat Apr 12 16:21:29 2008
+++ cnagios.c	Thu Oct  1 13:43:46 2009
@@ -12,6 +12,7 @@
 #include <signal.h>
 #include <sys/param.h>
 #include <getopt.h>
+#include <unistd.h>
 #include "cnagios.h"
 #include "version.h"
 
@@ -37,8 +38,11 @@ extern int age_filter_secs;
 extern int age_okay_filter_secs;
 extern int need_swipe;
 
+void usage();
+
 /*------------------------------------------------------------------*/
 
+int
 main(argc,argv)
 int argc;
 char *argv[];
@@ -253,12 +257,13 @@ debug("");
   /* destroy perl... */
 
   perl_hook_free();
+  return(0);
 
 }
 
 /*------------------------------------------------------------------*/
 
-usage()
+void usage()
 {
    printf("usage: cnagios [options]\n");
    printf("  -A <age>         filter UP/OKAY objects by age less than <age>\n");
