* Now it is byte compilable

racket-mode.el

@@ -144,13 +144,14 @@ http://www.gnu.org/licenses/ for details.")
   (set (make-local-variable 'imenu-syntax-alist)
        '(("+-*/.<>=?!$%_&~^:" . "w"))))
 
-(when (fboundp 'helm)
-  (require 'helm)
 
-  (defun racket-helm-apropos-init ()
-    (with-current-buffer (helm-candidate-buffer 'global)
-      (dolist (elem (racket--eval/sexpr ",apropos"))
-	(insert (car elem) "\n"))))
+(when (require 'helm nil 't)
+
+  (when (fboundp 'helm-candidate-buffer)
+    (defun racket-helm-apropos-init ()
+      (with-current-buffer (helm-candidate-buffer 'global)
+	(dolist (elem (racket--eval/sexpr ",apropos"))
+	  (insert (car elem) "\n")))))
 
   (defun racket-helm-apropos-match-part (candidate)
     candidate)
@@ -166,10 +167,11 @@ http://www.gnu.org/licenses/ for details.")
       (match-part . racket-helm-apropos-match-part)
       (action . racket-helm-apropos-action)))
 
-  (defun racket-helm-apropos ()
-    "Equivalent of helm-apropos but for the racket installed documentation"
-    (interactive)
-    (helm :sources 'helm-source-racket-apropos :buffer "*helm racket apropos*")))
+  (when (fboundp 'helm)
+    (defun racket-helm-apropos ()
+      "Equivalent of helm-apropos but for the racket installed documentation"
+      (interactive)
+      (helm :sources 'helm-source-racket-apropos :buffer "*helm racket apropos*"))))
 
 ;;;###autoload
 (define-derived-mode racket-mode prog-mode

scribble.rkt

@@ -1,18 +1,18 @@
 #lang racket/base
 
 (require racket/file
-	 racket/list
+         racket/list
          racket/match
          scribble/xref
          setup/xref
          (only-in xml xml->xexpr element xexpr->string)
          (only-in html read-html-as-xml))
 
 (provide scribble-doc/html
-	 scribble-decl-list)
+         scribble-decl-list)
 
 (define (scribble-decl-list)
-  (define xref (fix-load-collections-xref))
+  (define xref (load-collections-xref))
   (map entry-words (xref-index xref)))
 
 (module+ test
@@ -33,16 +33,8 @@
   (define-values (path anchor) (binding->path+anchor stx))
   (and path anchor (scribble-get-xexpr path anchor)))
 
-(define fix-xref #f)
-
-(define (fix-load-collections-xref)
-  (when (not fix-xref)
-    (set! fix-xref (load-collections-xref))
-    (void (xref-index fix-xref)))
-  fix-xref)
-
 (define (binding->path+anchor stx)
-  (define xref (fix-load-collections-xref))
+  (define xref (load-collections-xref))
   (define tag (and (identifier? stx)
                    (xref-binding->definition-tag xref stx 0)))
   (cond [tag (xref-tag->path+anchor xref tag)]