$NetBSD: patch-as,v 1.1 2010/07/20 12:29:21 asau Exp $

Problems on FreeBSD 6.

--- tools/make_spec_method_call.orig	2005-09-12 07:03:08.000000000 +0400
+++ tools/make_spec_method_call	2010-01-11 15:35:47.000000000 +0300
@@ -134,5 +134,5 @@
     echo "MR_define_extern_entry(mercury__do_call_class_method_$variant);" >> mercury_method_call_declares.i
     echo "    MR_init_entry_an(mercury__do_call_class_method_$variant);" >> mercury_method_call_inits.i
 
-    spec_explicit_arg=`expr $spec_explicit_arg + 1`
+    spec_explicit_arg=`expr -- $spec_explicit_arg + 1`
 done
