[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
           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:
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 I guess the ghc-8.6.1-x86_64-apple-darwin.tar.xz is build with homebrew.
 So, it depends on homebrew's "libgmp".

 Since I'm using MacPorts, the following error occurs on installation:

 {{{
 % sudo make install

 "utils/ghc-cabal/dist-install/build/tmp/ghc-cabal-bindist" copy libraries
 /ghc-prim dist-install "strip" '' '/usr/local/ghc-8.6.1'
 '/usr/local/ghc-8.6.1/lib/ghc-8.6.1'
 '/usr/local/ghc-8.6.1/share/doc/ghc-8.6.1/html/libraries' 'v p dyn'
 dyld: Library not loaded: /usr/local/opt/gmp/lib/libgmp.10.dylib
   Referenced from: /Users/kazu/Downloads/ghc-8.6.1/libraries/base/dist-
 install/build/libHSbase-4.12.0.0-ghc8.6.1.dylib
   Reason: image not found
 make[1]: *** [install_packages] Abort trap: 6
 make: *** [install] Error 2
 }}}

 After make a link from "/usr/local/opt/gmp/lib/libgmp.10.dylib" to
 "/opt/local/lib/libgmp.10.dylib" installed by MacPorts, the installation
 succeeds.

 But when using GHC 8.6.1, the following error occurs:

 {{{
 [15 of 15] Compiling Network.DNS      ( Network/DNS.hs,
 dist/build/Network/DNS.o )
 ld: library not found for -lgmp
 clang: error: linker command failed with exit code 1 (use -v to see
 invocation)
 `gcc' failed in phase `Linker'. (Exit code: 1)
 cab: callCommand: cabal build (exit 1): failed
 }}}

 To fix this, the following is necessary:

 {{{
 % export LIBRARY_PATH=/usr/lib:/opt/local/lib
 }}}

 - "/usr/lib" is for "libiconv" and should come first to hide
 "/opt/local/lib/libiconv"
 - "/opt/local/lib" is for "libgmp"

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15769>
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