[Haddock] [haddock] #187: With TH, when doing "cabal haddock", GHCi "couldn't find symbol"

[haddock]

#187: With TH, when doing "cabal haddock", GHCi "couldn't find symbol"
----------------------------+-----------------------------------------------
Reporter:  MikolajKonarski  |       Owner:        
    Type:  defect           |      Status:  new   
Priority:  major            |   Milestone:  2.10.0
 Version:  2.9.2            |    Keywords:        
----------------------------+-----------------------------------------------
 This is a copy of the ticket
 http://hackage.haskell.org/trac/hackage/ticket/898, I've filed for Cabal.
 I include the whole ticket text below.

 GHC 7.2.1, Cabal HEAD, Haddock 2.9.2. The message

 {{{
 During interactive linking, GHCi couldn't find the following symbol:
 Allurezm0zi4zi2_UtilsziMultiline_multiline_closure
 }}}

 How to reproduce: get package
 http://hackage.haskell.org/package/Allure-0.4.2, cabal install, cabal
 haddock --executables and you should get the following:

 {{{
 Running Haddock for Allure-0.4.2...
 Warning: The documentation for the following packages are not installed.
 No
 links will be generated to these packages: ConfigFile-1.1.1,
 HUnit-1.2.4.2,
 MissingH-1.1.1.0, ffi-1.0, rts-1.0, cairo-0.12.1, deepseq-1.1.0.2,
 gio-0.12.1,
 glib-0.12.1, gtk-0.12.1, hslogger-1.1.5, mtl-2.0.1.0, network-2.3.0.6,
 pango-0.12.1, parsec-3.1.2, random-1.0.1.0, regex-base-0.93.2,
 regex-compat-0.95.1, regex-posix-0.95.1, text-0.11.1.6,
 transformers-0.2.2.0,
 zlib-0.5.3.1
 Preprocessing executable 'BotAllure' for Allure-0.4.2...
 haddock coverage for dist/build/tmp-28531/src/Bot.hs:     0/3   0%
 Warning: Main: could not find link destinations for:
     System.Random.StdGen
 Documentation created: dist/doc/html/Allure/BotAllure/index.html
 Preprocessing executable 'Allure' for Allure-0.4.2...
 haddock coverage for dist/build/autogen/Paths_Allure.hs:     0/4   0%
 haddock coverage for dist/build/tmp-28531/src/Utils/File.hs:     0/3   0%
 haddock coverage for dist/build/tmp-28531/src/Frequency.hs:     0/6   0%
 haddock coverage for dist/build/tmp-28531/src/Strategy.hs:     1/7  14%
 haddock coverage for dist/build/tmp-28531/src/Content/Content.hs:     0/2
 0%
 haddock coverage for dist/build/tmp-28531/src/Utils/Multiline.hs:     1/2
 50%

 During interactive linking, GHCi couldn't find the following symbol:
   Allurezm0zi4zi2_UtilsziMultiline_multiline_closure
 This may be due to you not asking GHCi to load extra object files,
 archives or DLLs needed by your current session.  Restart GHCi, specifying
 the missing library using the -L/path/to/object/dir and -lmissinglibname
 flags, or simply by naming the relevant files on the GHCi command line.
 Alternatively, this link failure might indicate a bug in GHCi.
 If you suspect the latter, please send a bug report to:
   glasgow-haskell-bugs at haskell.org
 }}}

 The same problem for a library, with or without executables, with the same
 code. Hiding, in the library, the offending module Multiline does not
 help. The only thing that helps is eta-expanding the Multiline code as
 follows:

 {{{
 -multiline  = TQ.QuasiQuoter (TH.litE . TH.stringL) undefined undefined
 undefined
 +multiline  = TQ.QuasiQuoter (\x -> (TH.litE . TH.stringL) x) undefined
 undefined undefined
 }}}

 and _not_ using the function in the only place where it's used.

-- 
Ticket URL: <http://trac.haskell.org/haddock/ticket/187>
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