* Changed to make it not depend on helm, and use the racket- convention

Author: Antoine Brand

racket-mode.el

@@ -138,31 +138,32 @@ http://www.gnu.org/licenses/ for details.")
   (set (make-local-variable 'imenu-syntax-alist)
        '(("+-*/.<>=?!$%_&~^:" . "w"))))
 
-(require 'helm)
-
-(defun helm-racket-apropos-init ()
-  (with-current-buffer (helm-candidate-buffer 'global)
-    (dolist (elem (racket--eval/sexpr ",apropos"))
-      (insert (car elem) "\n"))))
-
-(defun helm-racket-apropos-match-part (candidate)
-  candidate)
-
-(defun helm-racket-apropos-action (candidate)
-  (racket--do-describe candidate t))
-
-(defvar helm-source-racket-apropos
-  '((name . "Search throught racket defining symbol")
-    (init . helm-racket-apropos-init)
-    (candidates-in-buffer)
-    (get-line . buffer-substring)
-    (match-part . helm-racket-apropos-match-part)
-    (action . helm-racket-apropos-action)))
-
-(defun helm-racket-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)
+  (require 'helm)
+
+  (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)
+
+  (defun racket-helm-apropos-action (candidate)
+    (racket--do-describe candidate t))
+
+  (defvar helm-source-racket-apropos
+    '((name . "Search throught racket defining symbol")
+      (init . racket-helm-apropos-init)
+      (candidates-in-buffer)
+      (get-line . buffer-substring)
+      (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*")))
 
 ;;;###autoload
 (define-derived-mode racket-mode prog-mode