[GHC] #14525: Backpack doesn't work with CPP

[GHC]

#14525: Backpack doesn't work with CPP
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        Reporter:  ezyang            |                Owner:  (none)
            Type:  bug               |               Status:  patch
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.2.2
      Resolution:                    |             Keywords:  backpack
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D4234
       Wiki Page:                    |
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Comment (by Edward Z. Yang <ezyang@…>):

 In [changeset:"e1fb28384c44fcd29b0e60b9fd44767be22646af/ghc" e1fb283/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="e1fb28384c44fcd29b0e60b9fd44767be22646af"
 Handle CPP properly in Backpack

 Summary:
 Previously, we attempted to lookup 'hole' packages for
 include directories; this obviously is not going to work.

 Signed-off-by: Edward Z. Yang <ezyang at fb.com>

 Test Plan: validate

 Reviewers: ekmett, bgamari

 Subscribers: rwbarton, thomie

 GHC Trac Issues: #14525

 Differential Revision: https://phabricator.haskell.org/D4234
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14525#comment:2>
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