automatic dependency tracking

diff --git a/libasn1compiler/asn1c_internal.h b/libasn1compiler/asn1c_internal.h
index e32187f..fdf953d 100644
--- a/libasn1compiler/asn1c_internal.h
+++ b/libasn1compiler/asn1c_internal.h
@@ -51,7 +51,7 @@
 	struct compiler_streams *target;
 
 	asn1p_t		*asn;
-	asn1p_module_t	*mod;
+	//asn1p_module_t	*mod;
 	asn1p_expr_t	*expr;
 
 	int embed;