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+ SLIB LICENSE
+
+Each file in SLIB (over a dozen lines in length) is either in the public
+domain, or comes with a statement of terms permitting users to copy,
+modify, and redistribute it.
+
+The comments at the beginning each file (containing over a dozen lines)
+must specify its terms. For instance, the comments at the beginning of
+"Template.scm" declare that it is in the public domain:
+
+ ;;; "Template.scm" configuration template of *features* for Scheme
+ ;;; Author: Aubrey Jaffer
+ ;;;
+ ;;; This code is in the public domain.
+
+Each copyrighted file lists the names of the copyright holders and gives
+permissions to copy, modify, and redistribute the file. For instance,
+the beginning of "require.scm" states:
+
+ ;;;; Implementation of VICINITY and MODULES for Scheme
+ ;Copyright (C) 1991, 1992, 1993, 1994, 1997 Aubrey Jaffer
+ ;
+ ;Permission to copy this software, to modify it, to redistribute it,
+ ;to distribute modified versions, and to use it for any purpose is
+ ;granted, subject to the following restrictions and understandings.
+ ;
+ ;1. Any copy made of this software must include this copyright notice
+ ;in full.
+ ;
+ ;2. I have made no warrantee or representation that the operation of
+ ;this software will be error-free, and I am under no obligation to
+ ;provide any services, by way of maintenance, update, or otherwise.
+ ;
+ ;3. In conjunction with products arising from the use of this
+ ;material, there shall be no use of my name in any advertising,
+ ;promotional, or sales literature without prior written consent in
+ ;each case.