[GHC] #10950: Sphinx "RecursionError: maximum recursion depth exceeded while pickling an object"

[GHC]

#10950: Sphinx "RecursionError: maximum recursion depth exceeded while pickling an
object"
-------------------------------------+-------------------------------------
        Reporter:  ezyang            |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.0.1
       Component:  Documentation     |              Version:  7.11
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash                              |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by Sergei Trofimovich <siarheit@…>):

 In [changeset:"a034031a102bc08c76a6cdb104b72922ae22c96b/ghc" a034031/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="a034031a102bc08c76a6cdb104b72922ae22c96b"
 extending_ghc.rst: fix broken link (Trac #10950)

 The error exibits as build failures
 of two types:

   1. extending_ghc.rst:: ERROR:
       Anonymous hyperlink mismatch:
         1 references but 0 targets.
       See "backrefs" attribute for IDs.

   2. reading sources... [ 33%] glasgow_exts
        Exception occurred:
           pickle.dump(doctree, f, pickle.HIGHEST_PROTOCOL)
        RecursionError: maximum recursion depth exceeded
        while pickling an object

 Broken link created circular reference and failed to
 serialize the result.

 Fixed the problem by pointing to relevant section.

 Signed-off-by: Sergei Trofimovich <siarheit at google.com>
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10950#comment:9>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler