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+#| -*-Scheme-*-
+
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/runtime/site.scm.dos,v 1.1 1992/05/13 00:56:46 mhwu Exp $
+
+Copyright (c) 1988-1992 Massachusetts Institute of Technology
+
+This material was developed by the Scheme project at the Massachusetts
+Institute of Technology, Department of Electrical Engineering and
+Computer Science.  Permission to copy this software, to redistribute
+it, 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. Users of this software agree to make their best efforts (a) to
+return to the MIT Scheme project any improvements or extensions that
+they make, so that these may be included in future releases; and (b)
+to inform MIT of noteworthy uses of this software.
+
+3. All materials developed as a consequence of the use of this
+software shall duly acknowledge such use, in accordance with the usual
+standards of acknowledging credit in academic research.
+
+4. MIT has made no warrantee or representation that the operation of
+this software will be error-free, and MIT is under no obligation to
+provide any services, by way of maintenance, update, or otherwise.
+
+5. In conjunction with products arising from the use of this material,
+there shall be no use of the name of the Massachusetts Institute of
+Technology nor of any adaptation thereof in any advertising,
+promotional, or sales literature without prior written consent from
+MIT in each case. |#
+
+;;;; Switzerland site specific stuff
+
+(declare (usual-integrations))
+
+;;; Local hacks
+
+(define (call/cc . args)
+  (warn "call/cc: Invoking the C compiler:" command-line)
+  (warn "Segmentation fault (core dumped)"))
+
+;;; Normalization of various directory structures.
+
+(let ((add-directory-rewriting-rule!
+       (access add-directory-rewriting-rule!
+              (->environment '(runtime compiler-info)))))
+  (for-each
+   (lambda (path)
+     (add-directory-rewriting-rule! path "/scheme/"))
+   '("/scheme/300/"
+     "/altdorf/scheme/300/"
+     "/nfs/altdorf/root/scheme/300/"
+     "/scheme/800/"
+     "/altdorf/scheme/800"
+     "/nfs/altdorf/root/scheme/800/"
+     "/scheme/700/"
+     "/altdorf/scheme/700"
+     "/nfs/altdorf/root/scheme/700/"
+     "/scheme/SONY/"
+     "/nfs/altdorf/root/scheme/SONY/"))
+  (for-each
+   (lambda (path)
+     (add-directory-rewriting-rule! path "/scheme/runtime"))
+   '("/scheme/runtime/scm/"
+     "/scheme/runtime/bin/"
+     "/scheme/runtime/com/"))
+  )
+
+\f
+;;; Dos specific:
+;;; Timer hook to get interrupt keys
+
+(in-package (->environment '(runtime interrupt-handler))
+
+  (define (typeahead-timer-interrupt a b)
+    ((ucode-primitive consume-typeahead))
+    (timer-interrupt-handler a b))
+
+  (let ((sv (vector-ref
+            (get-fixed-objects-vector)
+            (fixed-objects-vector-slot 'SYSTEM-INTERRUPT-VECTOR))))
+    (vector-set! sv timer-slot typeahead-timer-interrupt))
+
+  )
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