[GHC] #11223: Dynamic linker on Windows is unable to link against libmingwex

[GHC]

#11223: Dynamic linker on Windows is unable to link against libmingwex
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        Reporter:  Phyx-             |                Owner:  Phyx-
            Type:  task              |               Status:  new
        Priority:  normal            |            Milestone:  8.2.1
       Component:  Runtime System    |              Version:  7.10.3
  (Linker)                           |
      Resolution:                    |             Keywords:
Operating System:  Windows           |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash                              |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #10726            |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by Phyx-):

 Yeah, It's not on the top of the list of possible solutions for sure.

 I have another thing I want to try next, instead of linking in
 `libmingw32.a` to get `__mingw_raise_matherr` I can just inline the
 definition of `__mingw_raise_matherr` in the `rts` and export the symbol
 as a **weak** symbol. That way you can still link to `libmingw32` if you
 want to and thus override it, but I don't need to link in everything else
 including the kitchen sink to use `libmingwex`.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11223#comment:5>
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