[MacPorts] #61263: Linking errors in multiple haskell ports

[MacPorts]

#61263: Linking errors in multiple haskell ports
-------------------------+-------------------------------------------------
 Reporter:  nickgaya     |      Owner:  neverpanic
     Type:  defect       |     Status:  assigned
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:  2.6.3
 Keywords:               |       Port:  hs-alex hs-cabal-install hs-happy
                         |  hs-hscolour
-------------------------+-------------------------------------------------
 When upgrading haskell-platform, macports detected linking errors for
 several ports.
 {{{
  hs-alex @3.1.3
  hs-cabal-install @1.18.0.5
  hs-happy @1.19.4
  hs-hscolour @1.20.3
 }}}

 Rebuilding with {{{port rev-upgrade}}} failed to fix the errors.

 Actually there seem to be two levels of errors.
 * The pre-built ports from packages.macports.org have linking errors
 * Rebuilding each port fails for various reasons (see attached build logs)
     * hs-alex and hs-happy fail during the configure stage due to a
 Haskell "Variable not in scope" error for {{{rawSystemProgramConf}}}
     * hs-cabal-install fails during the configure stage with a Haskell
 "Encountered missing or private dependencies" message
     * hs-hscolour fails during the build stage with an iconv linking error

 Possibly related: https://github.com/macports/macports-ports/pull/8523

 My computer is running macOS 10.13.16 17G14033. I have libiconv @1.16_1
 installed.

-- 
Ticket URL: <https://trac.macports.org/ticket/61263>
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