trivial diff: add io__gc_init for Prolog

[Zoltan Somogyi]

library/io.nu.nl:
	Add an implementation of io__gc_init for Prolog.

Zoltan.

cvs diff: Diffing .
Index: io.nu.nl
===================================================================
RCS file: /home/mercury1/repository/mercury/library/io.nu.nl,v
retrieving revision 1.61
diff -u -u -r1.61 io.nu.nl
--- 1.61	1998/07/09 07:15:07
+++ io.nu.nl	1998/07/27 06:33:15
@@ -140,6 +140,11 @@
 	),
 	assert(io__save_exit_status(0)).
 
+:- pred io__gc_init(type_info, type_info, io__state, io__state).
+:- mode io__gc_init(in, in, di, uo) is det.
+
+io__gc_init(_, _) --> [].
+
 :- pred io__gc_init(io__state, io__state).
 :- mode io__gc_init(di, uo) is det.
 io__gc_init --> [].