[MacPorts] #61422: stack @2.5.1_0 build fails on Big Sur 11.1 Beta / Xcode 12.3 Beta

[MacPorts]

#61422: stack @2.5.1_0 build fails on Big Sur 11.1 Beta / Xcode 12.3 Beta
---------------------+-----------------------
  Reporter:  rswail  |      Owner:  essandess
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:  bigsur
      Port:  stack   |
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Comment (by kencu):

 Replying to [comment:33 Tatsh]:
 > Cabal: https://github.com/gentoo/gentoo/blob/master/app-
 text/pandoc/pandoc-2.9.2.1.ebuild. Gentoo has a Cabal eclass (equivalent
 of a PortGroup). Ebuilds for compatible Haskell packages are generated
 using https://github.com/gentoo-haskell/hackport
 >

 As far as I can see, that build file uses cabal (and therefore stack) to
 build pandoc.

 <https://github.com/gentoo/gentoo/blob/75f59be946abf7424e555754debfcd9da824f6fa
 /app-text/pandoc/pandoc-2.9.2.1.ebuild#L82>

 > Also I must point out that unlike most other packages, Stack performs
 downloading during a non-fetch phase IIRC. This is a concern for those
 wanting to do a fully offline installation given the appropriate
 distfiles.

 That's true. We just haven't yet got to the point where we are prepared to
 pound on poor Steve about implementing all that ghc / stack / cabal
 dependency downloading in MacPorts. It's a big project to do, as that
 gentoo build file demonstrates.

 I'm sure he'd love some help with that project, if you are motivated. Ryan
 has asked many times for a volunteer to step up and do all that work -- it
 won't be me, however.

-- 
Ticket URL: <https://trac.macports.org/ticket/61422#comment:35>
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