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-rw-r--r--lisp/jka-compr.el5
1 files changed, 4 insertions, 1 deletions
diff --git a/lisp/jka-compr.el b/lisp/jka-compr.el
index fa852bd19b6..59c6de846c2 100644
--- a/lisp/jka-compr.el
+++ b/lisp/jka-compr.el
@@ -229,7 +229,10 @@ invoked."
"The entry in `file-name-handler-alist' used by the jka-compr I/O functions.")
(defvar jka-compr-really-do-compress nil
- "Non-nil in a buffer whose visited file was uncompressed on visiting it.")
+ "Non-nil in a buffer whose visited file was uncompressed on visiting it.
+This means compress the data on writing the file, even if the
+data appears to be compressed already.")
+(make-variable-buffer-local 'jka-compr-really-do-compress)
(put 'jka-compr-really-do-compress 'permanent-local t)
;;; Functions for accessing the return value of jka-compr-get-compression-info