[GHC] #12759: Latest Debian GCC breaks GHC

[GHC]

#12759: Latest Debian GCC breaks GHC
-----------------------------+----------------------------------------
        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:            |
-----------------------------+----------------------------------------

Comment (by erikd):

 According to @hvr, this is likely a cabal bug that has been fixed
 (https://git.haskell.org/packages/Cabal.git/commitdiff/c30b179a73d9fd3f6edcdda5e881523cd6edd46a)
 but not released yet.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12759#comment:10>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler