[GHC] #8614: Duplicate symbol error when loading text twice

[GHC]

#8614: Duplicate symbol error when loading text twice
-------------------------------------+-------------------------------------
        Reporter:  nh2               |                   Owner:
            Type:  bug               |                  Status:  closed
        Priority:  normal            |               Milestone:
       Component:  Runtime System    |                 Version:  7.6.3
  (Linker)                           |
      Resolution:  fixed             |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
                                     |  Unknown/Multiple
 Type of failure:  GHCi crash        |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:  #7030             |  Differential Revisions:
-------------------------------------+-------------------------------------
Changes (by nh2):

 * status:  infoneeded => closed
 * resolution:   => fixed


Comment:

 OK, so first on how to get the deps:

 * freenect: `apt-get install libfreenect-dev` on Ubuntu 14.04
 * OpenNI2: `git clone https://github.com/occipital/OpenNI2.git`, `cd
 OpenNI2`, `git checkout origin/develop`

 Then I compile with `$HOME/.local/bin/cabal install --extra-include-
 dirs=$HOME/src/OpenNI2/Include/ --extra-lib-
 dirs=$HOME/src/OpenNI2/Bin/x64-Release/`

 However, I have tried this now with GHC 7.10.2, and cabal-install
 1.22.6.0, and can no longer reproduce the issue.

 My output:


 {{{
 ➤ ghci
 GHCi, version 7.10.2: http://www.haskell.org/ghc/  :? for help
 Prelude> import Honi
 Prelude Honi> import Honi.Types
 Prelude Honi Honi.Types> initialize 2
 StatusOK
 }}}

 Trying the same with GHC 7.8:

 {{{
 ~/.stack/programs/x86_64-linux/ghc-7.8.4/bin/ghc --interactive
 GHCi, version 7.8.4: http://www.haskell.org/ghc/  :? for help
 Loading package ghc-prim ... linking ... done.
 Loading package integer-gmp ... linking ... done.
 Loading package base ... linking ... done.
 Prelude> import Honi
 Prelude Honi> import Honi.Types
 Prelude Honi Honi.Types> initialize 2
 Loading package array-0.5.0.0 ... linking ... done.
 Loading package deepseq-1.3.0.2 ... linking ... done.
 Loading package bytestring-0.10.4.0 ... linking ... done.
 Loading package containers-0.5.5.1 ... linking ... done.
 Loading package binary-0.7.1.0 ... linking ... done.
 Loading package text-1.2.1.3 ... linking ... done.
 Loading package honi-0.1.0.0 ... linking ... done.
 StatusOK
 }}}

 So I believe this was probably fixed with the linker improvements in GHC
 7.8 (I reported the bug against 7.6).

 Thanks for poking at this bug, I'm happy to find that it is fixed.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8614#comment:5>
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