[GHC] #15769: GHC 8.6 for macOS depends on homebrew

[GHC]

#15769: GHC 8.6 for macOS depends on homebrew
-------------------------------------+-------------------------------------
        Reporter:  kazu-yamamoto     |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:  8.6.2
       Component:  Compiler          |              Version:  8.6.1
      Resolution:                    |             Keywords:
Operating System:  MacOS X           |         Architecture:
 Type of failure:  Installing GHC    |  Unknown/Multiple
  failed                             |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by elaforge):

 I had this same problem.  I do use homebrew, but hadn't installed with it
 `gmp`.  So `brew install gmp` fixed it for me.

 If homebrew's gmp is an intentional dependency now it should probably be
 documented!  Otherwise it would be nice to continue linking it statically,
 or whatever it was that older compiles did.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15769#comment:1>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler