[GHC] #12111: prof build flavour doesn't work

24 May 2016

      #12111: prof build flavour doesn't work
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           Reporter:  osa1           |             Owner:
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:
          Component:  Build System   |           Version:  8.0.1
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 Building with `prof` flavour on a fresh build doesn't work. I'm currently
 getting

 {{{
 compiler/utils/Outputable.hs-boot:1:8: error:
     Failed to load interface for ‘Prelude’
     Perhaps you haven't installed the "p_dyn" libraries for package
 ‘base-4.9.0.0’?
     Use -v to see a list of the files searched for.
 }}}

 In addition, I don't see any profiling flags passes to GHC in `prof.mk`
 (like `-fprof-auto`), so I'm not sure how effective default profiling
 build is. Am I missing something or do users need to add those manually to
 `GhcStage2HcOpts`?

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Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12111
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