[MacPorts] #19711: hs-cabal upgrade to 0.6.2 fails

[MacPorts]

#19711: hs-cabal upgrade to 0.6.2 fails
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  Reporter:  macports.org@…             |       Owner:  gwright@…           
      Type:  defect                     |      Status:  closed              
  Priority:  Normal                     |   Milestone:                      
 Component:  ports                      |     Version:  1.7.1               
Resolution:  invalid                    |    Keywords:  haskell cabal       
      Port:  hs-cabal                   |  
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Changes (by gwright@…):

  * status:  new => closed
  * resolution:  => invalid


Comment:

 My guess is that you upgraded ghc without rebuilding all of the libraries.
 This is required since the ghc ABI changes for every release, even minor
 ones.  What's happening is that MacPorts has found the port dependency but
 zlib is not registered with the new compiler.  You need to rebuild all of
 the ghc libraries.

 There is unfortunately no easy way for MacPorts to do this for you
 automatically at the moment.  However, after upgrading ghc you can run
 {{{
     $ sudo port -R upgrade ghc
 }}}
 This will rebuild all of the dependents (i.e., things that depend on ghc).
 The normal upgrade procedure only rebuilds the dependencies (i.e., things
 on which ghc depends).  Be aware that this may take some time.

 This should be simplified a bit in a few weeks with a new haskell-platform
 meta-port. I hope to get some of the documentation build issues sorted out
 for that too.  However, it is unlikely that the documentation build will
 ever work on ppc, because of toolchain issues.

-- 
Ticket URL: <http://trac.macports.org/ticket/19711#comment:4>
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