Remove unnecessary require when compiling sgml-mode.el

* lisp/textmodes/sgml-mode.el: Don't require outline when compiling.
(outline-regexp, outline-heading-end-regexp, outline-level): Declare.

1 files changed, 4 insertions, 1 deletions

diff --git a/lisp/textmodes/sgml-mode.el b/lisp/textmodes/sgml-mode.el
index 67d7f8c01f9..46c65b25b37 100644
--- a/lisp/textmodes/sgml-mode.el
+++ b/lisp/textmodes/sgml-mode.el
@@ -34,7 +34,6 @@
 
 (eval-when-compile
   (require 'skeleton)
-  (require 'outline)
   (require 'cl-lib))
 
 (defgroup sgml nil
@@ -1938,6 +1937,10 @@ This takes effect when first loading the library.")
     ("wbr" . "Enable <br> within <nobr>"))
   "Value of `sgml-tag-help' for HTML mode.")
 
+(defvar outline-regexp)
+(defvar outline-heading-end-regexp)
+(defvar outline-level)
+
 
 ;;;###autoload
 (define-derived-mode html-mode sgml-mode '(sgml-xml-mode "XHTML" "HTML")