1 files changed, 34 insertions, 23 deletions

diff --git a/lisp/jka-compr.el b/lisp/jka-compr.el
index 78f544d4d2c..1bac9a7469d 100644
--- a/lisp/jka-compr.el
+++ b/lisp/jka-compr.el
@@ -298,7 +298,7 @@ to keep: LEN chars starting BEG chars from the beginning."
   (if jka-compr-use-shell
 
       (let ((err-file (jka-compr-make-temp-name))
-            (coding-system-for-read 'undecided)
+            (coding-system-for-read (or coding-system-for-read 'undecided))
             (coding-system-for-write 'no-conversion) )
 
         (unwind-protect
@@ -431,13 +431,16 @@ 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))
 
-            (jka-compr-call-process compress-program
-                                    (concat compress-message
-                                            " " base-name)
-                                    temp-file
-                                    temp-buffer
-                                    nil
-                                    compress-args)
+            ;; Here we must read the output of compress program as is
+            ;; without any code conversion.
+            (let ((coding-system-for-read 'no-conversion))
+              (jka-compr-call-process compress-program
+                                      (concat compress-message
+                                              " " base-name)
+                                      temp-file
+                                      temp-buffer
+                                      nil
+                                      compress-args))
 
             (with-current-buffer temp-buffer
               (let ((coding-system-for-write 'no-conversion))
@@ -496,7 +499,7 @@ There should be no more than seven characters after the final `/'."
                (jka-compr-run-real-handler 'file-local-copy (list filename)))
               local-file
               size start
-              (coding-system-for-read 'undecided) )
+              (coding-system-for-read (or coding-system-for-read 'undecided)) )
 
           (setq local-file (or local-copy filename))
 
@@ -625,20 +628,28 @@ There should be no more than seven characters after the final `/'."
                  uncompress-message
                  (message "%s %s..." uncompress-message base-name))
                   
-                (jka-compr-call-process uncompress-program
-                                        (concat uncompress-message
-                                                " " base-name)
-                                        local-file
-                                        t
-                                        nil
-                                        uncompress-args)
-
-                (and
-                 uncompress-message
-                 (message "%s %s...done" uncompress-message base-name))
-
-                (write-region
-                 (point-min) (point-max) temp-file nil 'dont))
+                ;; Here we must read the output of uncompress program
+                ;; and write it to TEMP-FILE without any code
+                ;; conversion.  An appropriate code conversion (if
+                ;; necessary) is done by the later I/O operation
+                ;; (e.g. load).
+                (let ((coding-system-for-read 'no-conversion)
+                      (coding-system-for-write 'no-conversion))
+
+                  (jka-compr-call-process uncompress-program
+                                          (concat uncompress-message
+                                                  " " base-name)
+                                          local-file
+                                          t
+                                          nil
+                                          uncompress-args)
+
+                  (and
+                   uncompress-message
+                   (message "%s %s...done" uncompress-message base-name))
+
+                  (write-region
+                   (point-min) (point-max) temp-file nil 'dont)))
 
             (and
              local-copy