+++ /dev/null
-#| -*-Scheme-*-
-
-$Id: optiondb.scm,v 1.4 2000/10/16 17:58:27 cph Exp $
-
-Copyright (c) 2000 Massachusetts Institute of Technology
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or (at
-your option) any later version.
-
-This program is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-|#
-
-(define (guarded-system-loader package-name place #!optional filename)
- (let ((directory
- (merge-pathnames place
- (directory-pathname (current-load-pathname)))))
- (lambda ()
- (if (not (name->package package-name))
- (with-working-directory-pathname directory
- (lambda ()
- (load
- (let ((test
- (lambda (name)
- (or (file-exists? name)
- (there-exists? load/default-types
- (lambda (type)
- (file-exists?
- (pathname-new-type name (car type)))))))))
- (cond ((not (default-object? filename)) filename)
- ((test "make") "make")
- ((test "load") "load")
- (else (error "Can't find loader.")))))))))))
-
-(define-load-option 'CREF
- (guarded-system-loader '(cross-reference) "cref"))
-
-(define-load-option 'SOS
- (guarded-system-loader '(runtime object-system) "sos"))
-
-(define-load-option 'IMAIL
- (guarded-system-loader '(edwin imail) "imail"))
-
-(further-load-options standard-load-options)
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