[GHC] #11823: Undefined stg_sel_17_upd_info symbols on OS X

[GHC]

#11823: Undefined stg_sel_17_upd_info symbols on OS X
-------------------------------------+-------------------------------------
           Reporter:  bgamari        |             Owner:
               Type:  bug            |            Status:  new
           Priority:  highest        |         Milestone:  8.0.1
          Component:  Compiler       |           Version:  8.0.1-rc3
           Keywords:                 |  Operating System:  MacOS X
       Architecture:  x86_64         |   Type of failure:  Building GHC
  (amd64)                            |  failed
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
-------------------------------------+-------------------------------------
 Several people have reported that recent `ghc-8.0` and `master` snapshots
 fail to build on OS X,
 {{{
   HC [stage 1] ghc/stage2/build/tmp/ghc-stage2
 Warning: -rtsopts and -with-rtsopts have no effect with -no-hs-main.
     Call hs_init_ghc() from your main() function to set these options.
 Undefined symbols for architecture x86_64:
   "_stg_sel_17_upd_info", referenced from:
       _s1s8Z_info in UI.dyn_o
       _s1s9w_info in UI.dyn_o
 ld: symbol(s) not found for architecture x86_64
 clang: error: linker command failed with exit code 1 (use -v to see
 invocation)
 `gcc' failed in phase `Linker'. (Exit code: 1)
 }}}

 These were originally introduced in #11555, although this appears to be a
 much different beast from the original issue that ticket was reporting:
 the symbols in question here are update closures, not application closures
 like in #11555.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11823>
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