[MacPorts] #42082: [pandoc]: configure step fails with "missing dependencies..."

[MacPorts]

#42082: [pandoc]: configure step fails with "missing dependencies..."
-----------------------------+----------------------
  Reporter:  kurt.pfeifle@…  |      Owner:  cal@…
      Type:  defect          |     Status:  reopened
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:  2.2.1
Resolution:                  |   Keywords:
      Port:  pandoc          |
-----------------------------+----------------------

Comment (by and.damore@…):

 Replying to [comment:24 jowens@…]:
 > Unfortunately, I'm in the same sort of boat as J.Gilbey ... both pandoc
 and haskell-platform installs fail because the set of hs-* packages
 appears to be collectively incompatible. With no hs-* packages installed,
 but using the latest ghc:

 I stumbled in this very same issue while upgrading pandoc, I eventually
 was able to install pandoc by removing all the installed hs- packages,
 deactivating the ghc port that was installed and active, removing ghc's
 packages.conf.d directory and then reactivating ghc. This should reinstall
 the correct package cache.

 Here's what I did, if you want to try this as well be sure to understand
 the commands, you're the sole responsible for the commands your run:

 *  upgrade ghc
 *  uninstall pandoc and all hs-* ports using '''port uninstall pandoc
 name:hs-''' (if you have other ports depending on hs-* port you'll have to
 uninstall/deactivate those as well)
 *  deactivate ghc '''port deactivate ghc'''
 *  locate and delete ghc's '''package.conf.d''', should be at
 '''$prefix/lib/ghc-7.8.3/package.conf.d''', I deleted a stray ghc-7.6.3
 folder there as well
 *  activate ghc '''port activate ghc'''
 *  install pandoc that should now install all required hs-* ports and
 upgraded pandoc


 I ended up with a working '''pandoc @1.12.4.2_0''' and all its
 dependencies, before this hs-sha and hs-zip-archive were choking on bad
 packages in cache.

 YMMV.

-- 
Ticket URL: <https://trac.macports.org/ticket/42082#comment:25>
MacPorts <https://www.macports.org/>
Ports system for OS X