Change file-touch to give an error only if the result of the primitive

is an error string.

diff --git a/v7/src/runtime/unxprm.scm b/v7/src/runtime/unxprm.scm
index 755945654aeebd20a49e6bdb7b422e1d40fc3d77..fc80fc1a0995c6f647dd3be45c3cd9ebc1f12a8a 100644 (file)
--- a/v7/src/runtime/unxprm.scm
+++ b/v7/src/runtime/unxprm.scm
@@ -1,6 +1,6 @@
 #| -*-Scheme-*-
 
-$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/runtime/unxprm.scm,v 1.6 1989/12/08 01:52:05 cph Exp $
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/runtime/unxprm.scm,v 1.7 1990/04/04 18:23:16 jinx Exp $
 
 Copyright (c) 1988, 1989 Massachusetts Institute of Technology
 
@@ -140,7 +140,7 @@ MIT in each case. |#
                (or (pathname->input-truename pathname)
                    (pathname-new-version pathname false)))))))
     (let ((result ((ucode-primitive file-touch) filename)))
-      (if result
+      (if (string? result)
          (error error-type:file
                 result
                 (error-irritant/noise #\newline)