Patch for #3865: Would somebody please commit on HEAD and branch?

[Tassilo Horn <tassilo@member.fsf.org>]

Hi all,

this patch fixes the inconveniences Reiner pointed out in #3865.  Could
somebody please commit it for me on branch and head?

I'm to busy to read up how to merge between branches with CVS -- I'm
going to marry tomorrow! :-)

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2009-07-16  Tassilo Horn  <tassilo@member.fsf.org>

	* doc-view.el (doc-view-initiate-display): Add yes-or-no-p if
	rendering of pngs is not possible instead of messaging a long
	description.
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Index: lisp/doc-view.el
===================================================================
RCS file: /sources/emacs/emacs/lisp/doc-view.el,v
retrieving revision 1.87
diff -u -r1.87 doc-view.el
--- lisp/doc-view.el	2 Apr 2009 21:12:56 -0000	1.87
+++ lisp/doc-view.el	17 Jul 2009 18:44:18 -0000
@@ -1078,15 +1078,12 @@
 		  "editing or viewing the document."))))
     (message
      "%s"
-     (substitute-command-keys
-      (concat "No PNG support available or some conversion utility for "
-	      (file-name-extension doc-view-buffer-file-name)" files is missing.  "
-	      "Type \\[doc-view-toggle-display] to switch to "
-	      (if (eq doc-view-doc-type 'ps)
-		  "ps-mode"
-		"fundamental-mode")
-	      ", \\[doc-view-open-text] to show the doc as text in a separate buffer "
-	      " or \\[doc-view-kill-proc-and-buffer] to kill this buffer.")))))
+     (concat "No PNG support available or some conversion utility for "
+	     (file-name-extension doc-view-buffer-file-name) " files is missing."))
+    (if (and (executable-find doc-view-pdftotext-program)
+	     (yes-or-no-p "Cannot render file.  View extracted text instead? "))
+	(doc-view-open-text)
+      (doc-view-toggle-display))))
 
 (defvar bookmark-make-record-function) 
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Bye,
Tassilo