[GHC] #12479: build fail of commercialhaskell.com with stack build on mac os x sierra beta 4

[GHC]

#12479: build fail of commercialhaskell.com with stack build on mac os x sierra
beta 4
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        Reporter:  stephenb          |                Owner:
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:  8.0.2
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  MacOS X           |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash                              |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #12198            |  Differential Rev(s):  Phab:D2532
       Wiki Page:                    |
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Comment (by carter):

 Just to be clear, the ghc work flows that are impacted are those which
 need the system linker.  Namely any dynamic linked executables , ghci , or
 TH.

 I agree with Gershom's assessment that 8.0.2 should wait till this is
 validated as being fixed for 10.12 and at least doesn't trigger any
 regressions on 10.11 and 10.10.

 @ilovezfs will you be able to help us consistently test that version range
 for correctness and absence of regressions? I could probably help with
 some guidance.

 I guess this is the first time Mac OS X support range has come up since
 the cpp / clang challenges in recent years. Or the more recent issue of
 some object code tool from llvm, nm, not defaulting to posix format for
 certain outputs.

 I would propose that we treat at least the 2-3 most recent OS X releases
 as "core tier 1" of our tier 1 Apple support. At least as an informal
 guide post?

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12479#comment:31>
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