From c3ac2d6d6c872f7cb42fd87bcdf5894d7c34b5ca Mon Sep 17 00:00:00 2001
From: ueno <ueno>
Date: Wed, 12 Apr 2006 07:11:06 +0000
Subject: [PATCH] Don't call set-buffer-multibyte if it is not fbound.

---
 epg-file.el |   14 ++++++++++----
 epg.el      |    3 ++-
 2 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/epg-file.el b/epg-file.el
index d3f5da1..fc2123f 100644
--- a/epg-file.el
+++ b/epg-file.el
@@ -20,6 +20,8 @@ with GnuPG."
 	(inhibit-file-name-operation operation))
     (apply operation args)))
 
+(defvar buffer-file-type)
+(defvar last-coding-system-used)
 (defun epg-file-write-region (start end filename &optional append visit
 				    lockname mustbenew)
   (let* ((visit-file (if (stringp visit)
@@ -29,7 +31,8 @@ with GnuPG."
          (coding-system (condition-case nil
 			    (epg-file-run-real-handler
 			     'write-region (list start end "/"))
-                          (file-error last-coding-system-used)))
+                          (file-error (if (boundp 'last-coding-system-used)
+					  last-coding-system-used))))
          ;; start and end are normally buffer positions
          ;; specifying the part of the buffer to write.
          ;; If start is nil, that means to use the entire buffer contents.
@@ -44,7 +47,8 @@ with GnuPG."
                                          (buffer-substring start end)))
                                        coding-system)))
     (with-temp-buffer
-      (set-buffer-multibyte nil)
+      (if (fboundp 'set-buffer-multibyte)
+	  (set-buffer-multibyte nil))
       ;; Optional fourth argument append if non-nil means
       ;;   append to existing file contents (if any).  If it is an integer,
       ;;   seek to that offset in the file before writing.
@@ -64,7 +68,8 @@ with GnuPG."
 	    (context (epg-make-context))
 	    cipher)
 	(when (setq cipher (epg-encrypt-string context (buffer-string) nil))
-	  (if (memq system-type '(ms-dos windows-nt))
+	  (if (and (memq system-type '(ms-dos windows-nt))
+		   (boundp 'buffer-file-type))
 	      (setq buffer-file-type t))
 	  (epg-file-run-real-handler
 	   'write-region
@@ -84,7 +89,8 @@ with GnuPG."
       (setq buffer-file-name visit))
     (when (or (eq visit t) (eq visit nil) (stringp visit))
       (message "Wrote %s" visit-file))
-    (setq last-coding-system-used coding-system)
+    (if (boundp 'last-coding-system-used)
+	(setq last-coding-system-used coding-system))
     nil))
 
 (defun epg-file-insert-file-contents (filename &optional visit beg end replace)
diff --git a/epg.el b/epg.el
index 9b42d60..330e7c4 100644
--- a/epg.el
+++ b/epg.el
@@ -260,7 +260,8 @@ This function is for internal use only."
 
 (defun epg-read-output (context)
   (with-temp-buffer
-    (set-buffer-multibyte nil)
+    (if (fboundp 'set-buffer-multibyte)
+	(set-buffer-multibyte nil))
     (if (file-exists-p (epg-context-output-file context))
 	(let ((coding-system-for-read (if (epg-context-textmode context)
 					  'raw-text
-- 
1.7.10.4