[haskell-platform] #217: Incorrect build order in source tarball

[haskell-platform]

#217: Incorrect build order in source tarball
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 Reporter:  andykitchen             |       Owner:  duncan
     Type:  defect                  |      Status:  new   
 Priority:  minor                   |   Milestone:        
Component:  Generic source tarball  |    Keywords:        
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 Building with the tarball on a system without happy installed fails
 because happy is not built before alex. Reordering the entries in
 packages/platform.packages fixes the problem. Patch attached.

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Ticket URL: <http://trac.haskell.org/haskell-platform/ticket/217>
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