[GHC] #4900: DEPENDS pragma

[GHC]

#4900: DEPENDS pragma
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  Reporter:  cdsmith           |          Owner:  simonmar        
      Type:  feature request   |         Status:  patch           
  Priority:  normal            |      Milestone:  7.6.1           
 Component:  Compiler          |        Version:                  
Resolution:                    |       Keywords:                  
        Os:  Unknown/Multiple  |   Architecture:  Unknown/Multiple
   Failure:  None/Unknown      |     Difficulty:  Unknown         
  Testcase:  TH_Depends        |      Blockedby:                  
  Blocking:                    |        Related:                  
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Comment(by simonmar):

 I looked at the new patch, and maybe I'm being stupid here, but it looks
 like my previous concerns still apply.  Looking at the HPT during the
 summarise stage rings alarm bells - the `hsc_env` should only be used for
 its `DynFlags` and the finder cache.  So I'm still not sure how to reason
 that this patch works correctly.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4900#comment:53>
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