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+;;; -*-Scheme-*-
+;;;
+;;;    $Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/edwin/compile.scm,v 1.1 1992/03/24 23:31:41 cph Exp $
+;;;
+;;;    Copyright (c) 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.
+;;;
+;;; NOTE: Parts of this program (Edwin) were created by translation
+;;; from corresponding parts of GNU Emacs.  Users should be aware that
+;;; the GNU GENERAL PUBLIC LICENSE may apply to these parts.  A copy
+;;; of that license should have been included along with this file.
+;;;
+
+;;;; Compilation Subprocess
+
+(declare (usual-integrations))
+
+(define-variable compile-command
+  "Last shell command used to do a compilation; default for next compilation."
+  "make -k")
+
+(define-command compile
+  "Compile the program including the current buffer.  Default: run `make'.
+Runs COMMAND, a shell command, in a separate process asynchronously
+with output going to the buffer *compilation*."
+  (lambda ()
+    (list (prompt-for-string "Compile command"
+                            (ref-variable compile-command)
+                            'INSERTED-DEFAULT)))
+  (lambda (command)
+    (set-variable! compile-command command)
+    (run-compilation command)))
+
+(define-command kill-compilation
+  "Kill the process made by the \\[compile] command."
+  ()
+  (lambda ()
+    (let ((process compilation-process))
+      (if (and process (eq? (process-status process) 'RUN))
+         (interrupt-process process true)))))
+\f
+(define (run-compilation command)
+  ((ref-command save-some-buffers) false)
+  (let ((process compilation-process))
+    (if process
+       (begin
+         (if (eq? (process-status process) 'RUN)
+             (begin
+               (if (not (prompt-for-yes-or-no?
+                         "A compilation process is running; kill it"))
+                   (editor-error "Cannot have two compilation processes"))
+               (interrupt-process process true)
+               (sit-for 1000)))
+         (delete-process process))))
+  (let ((buffer (temporary-buffer "*compilation*"))
+       (directory (buffer-default-directory (current-buffer))))
+    (disable-group-undo! (buffer-group buffer))
+    (set-buffer-default-directory! buffer directory)
+    (set-buffer-major-mode! buffer (ref-mode-object fundamental))
+    (add-buffer-initialization!
+     buffer
+     (lambda ()
+       (define-variable-local-value! buffer
+        (ref-variable-object mode-line-process)
+        '(": %s"))))
+    (let ((mark (mark-left-inserting-copy (buffer-start buffer))))
+      (let ((window (get-buffer-window buffer)))
+       (if window
+           (set-window-start-mark! window mark true)))
+      (insert-string "cd " mark)
+      (insert-string (->namestring directory) mark)
+      (insert-newline mark)
+      (insert-string command mark)
+      (insert-newline mark)
+      (mark-temporary! mark))
+    (let ((process
+          (start-process "compilation"
+                         buffer
+                         scheme-subprocess-environment
+                         "/bin/sh"
+                         "-c"
+                         (string-append "exec " command))))
+      (set-process-sentinel! process compilation-process-sentinel)
+      (set! compilation-process process))
+    (pop-up-buffer buffer false)))
+
+(define (compilation-process-sentinel process status reason)
+  (let ((buffer (process-buffer process)))
+    (if buffer
+       (if (memq (process-status process) '(EXIT SIGNAL))
+           (let ((mark (mark-left-inserting-copy (buffer-end buffer))))
+             (insert-newline mark)
+             (insert-string "Process " mark)
+             (insert-string (process-name process) mark)
+             (insert-string " " mark)
+             (insert-string (process-status-message status reason) mark)
+             (insert-newline mark)
+             (mark-temporary! mark)))))
+  (without-interrupts
+   (lambda ()
+     (if (eq? process compilation-process)
+        (set! compilation-process false))))
+  unspecific)
+
+(define compilation-process
+  false)
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