--- a/main.c	Wed Sep 28 09:04:16 2011 -0700
+++ b/main.c	Wed Sep 28 09:04:16 2011 -0700
@@ -54,9 +54,11 @@
 
 	/* get_opt vars */
 	int opt = 0;
-	opterr  = 0;
+	extern char *optarg;
+	extern int opterr, optind, optopt;
 
 	/* parse options */
+	opterr = 0;
 	while ( (opt = getopt( argc, argv, "d:f:hv" )) != -1 ) {
 		switch ( opt ) {