[GHC] #12759: Latest Debian GCC breaks GHC

[GHC]

#12759: Latest Debian GCC breaks GHC
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        Reporter:  erikd     |                Owner:
            Type:  bug       |               Status:  new
        Priority:  normal    |            Milestone:  8.0.2
       Component:  Compiler  |              Version:  8.0.1
      Resolution:            |             Keywords:
Operating System:  Linux     |         Architecture:  Unknown/Multiple
 Type of failure:  Other     |            Test Case:
      Blocked By:            |             Blocking:
 Related Tickets:            |  Differential Rev(s):
       Wiki Page:            |
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Comment (by erikd):

 The interesting bits of `ghc --info`:
 {{{
  [("Project name","The Glorious Glasgow Haskell Compilation System")
  ,("GCC extra via C opts"," -fwrapv -fno-builtin")
  ,("C compiler command","/usr/bin/gcc")
  ,("C compiler flags","-fno-PIE -fno-stack-protector")
  ,("C compiler link flags","-no-pie")
  ,("Haskell CPP command","/usr/bin/gcc")
  ,("Haskell CPP flags","-E -undef -traditional")
  ,("ld command","/usr/bin/ld")
  ,("ld flags","-no-pie")
  ,("ld supports compact unwind","YES")
  ,("ld supports build-id","YES")
  ,("ld supports filelist","NO")
  ,("ld is GNU ld","YES")
  ,("ar command","/usr/bin/ar")
  ,("ar flags","q")
  ,("ar supports at file","YES")
  ,("touch command","touch")
  ,("dllwrap command","/bin/false")
  ,("windres command","/bin/false")
  ,("libtool command","libtool")
  ,("perl command","/usr/bin/perl")
  ,("cross compiling","NO")
  ,("target os","OSLinux")
  ,("target arch","ArchX86_64")
  ,("target word size","8")
  ,("target has GNU nonexec stack","True")
  ,("target has .ident directive","True")
  ,("target has subsections via symbols","False")
  ,("Unregisterised","NO")
  ,("LLVM llc command","/usr/bin/llc-3.7")
  ,("LLVM opt command","/usr/bin/opt-3.7")
 ...
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12759#comment:9>
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