(jka-compr-write-region): Ensure

`last-coding-system-used' is updated, so that basic-save-buffer
sees the right value.

diff --git a/lisp/jka-compr.el b/lisp/jka-compr.el
index 207864293647269f61e90abfdcbf8ada9b79b473..0ee24e94c66b53c9e5613c9347cc1d1659744899 100644 (file)
--- a/lisp/jka-compr.el
+++ b/lisp/jka-compr.el
@@ -306,7 +306,7 @@ to keep: LEN chars starting BEG chars from the beginning."
 
       (let ((err-file (jka-compr-make-temp-name))
            (coding-system-for-read (or coding-system-for-read 'undecided))
-            (coding-system-for-write 'no-conversion) )
+            (coding-system-for-write 'no-conversion))
 
        (unwind-protect
 
@@ -413,7 +413,11 @@ There should be no more than seven characters after the final `/'."
                (compress-args (jka-compr-info-compress-args info))
                (uncompress-args (jka-compr-info-uncompress-args info))
                (base-name (file-name-nondirectory visit-file))
-               temp-file temp-buffer)
+               temp-file temp-buffer
+               ;; we need to leave `last-coding-system-used' set to its
+               ;; value after calling write-region the first time, so
+               ;; that `basic-save-buffer' sees the right value.
+               (coding-system-used last-coding-system-used))
 
            (setq temp-buffer (get-buffer-create " *jka-compr-wr-temp*"))
            (with-current-buffer temp-buffer
@@ -436,6 +440,8 @@ There should be no more than seven characters after the final `/'."
            
            (jka-compr-run-real-handler 'write-region
                                        (list start end temp-file t 'dont))
+           ;; save value used by the real write-region
+           (setq coding-system-used last-coding-system-used)
 
            ;; Here we must read the output of compress program as is
            ;; without any code conversion.
@@ -478,6 +484,9 @@ There should be no more than seven characters after the final `/'."
                     (stringp visit))
                 (message "Wrote %s" visit-file))
 
+           ;; ensure `last-coding-system-used' has an appropriate value
+           (setq last-coding-system-used coding-system-used)
+
            nil)
              
        (jka-compr-run-real-handler 'write-region