Mon, 03 Nov 1997 11:56:17 +0100 wenzelm adapted to new implicit claset mechanism;
Mon, 03 Nov 1997 11:48:56 +0100 wenzelm fix references to implicit claset and simpset;
Mon, 03 Nov 1997 11:48:29 +0100 wenzelm do not overwrite backup files;
Mon, 03 Nov 1997 11:48:02 +0100 wenzelm set_session renamed to add_session;
Mon, 03 Nov 1997 11:46:42 +0100 wenzelm tuned error msg;
Mon, 03 Nov 1997 11:46:25 +0100 wenzelm made SML/97 happy;
Mon, 03 Nov 1997 09:58:06 +0100 nipkow expand_option_bind -> split_option_bind
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