File racket-doc.patch of Package racket

---
 share/pkgs/scribble-lib/help/search.rkt |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- share/pkgs/scribble-lib/help/search.rkt
+++ share/pkgs/scribble-lib/help/search.rkt	2019-03-28 07:38:19.695803840 +0000
@@ -43,7 +43,8 @@
       (let* ([path (build-path (find-user-doc-dir) sub)]
              [path (if (file-exists? path) path (build-path (find-doc-dir) sub))])
         (notify path)
-        (if (file-exists? path)
+        (if (and (file-exists? path)
+                 (file-exists? (build-path (find-doc-dir) "docindex.sqlite")))
           (send-url/file path #:fragment fragment #:query query)
           (let ([part (lambda (pfx x) (if x (string-append pfx x) ""))])
             (send-url (string-append