pack_cis: Add declarations of yyparse and yylex
diff --git a/pack_cis.h b/pack_cis.h
index 5f2378f..29608cb 100644
--- a/pack_cis.h
+++ b/pack_cis.h
@@ -36,3 +36,5 @@
 extern u_int nf;
 
 void parse_cis(FILE *f);
+int yyparse(void);
+int yylex(void);