[GHC] #11748: GHC runtime linker: fatal error: I found a duplicate definition for symbol

[GHC]

#11748: GHC runtime linker: fatal error: I found a duplicate definition for symbol
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        Reporter:  jeiea             |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.10.3
  (Linking)                          |
      Resolution:                    |             Keywords:
Operating System:  Windows           |         Architecture:  x86_64
 Type of failure:  Compile-time      |  (amd64)
  crash                              |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by Phyx-):

 * related:  #11223 =>


Comment:

 I can't seem to reproduce this even on `7.10.3`.

 {{{
 $ ghc --interactive Lib
 GHCi, version 7.10.3: http://www.haskell.org/ghc/  :? for help
 [1 of 1] Compiling Lib              ( Lib.hs, interpreted )
 Ok, modules loaded: Lib.
 *Lib> :browse
 main :: IO ()
 *Lib> main
 460035
 hello
 *Lib>
 }}}

 I'm not sure what stack is doing, but in your cabal file you specify a
 `Lib.c` and a `Lib.hs` in the same folder. What is most likely happening
 is that both compile to `Lib.o` and the wrong object file is loaded.

 The package doesn't compile either on a normal compile.

 try renaming `Lib.hs` to something else.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11748#comment:4>
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