[GHC] #7700: iOS patch no 3: enable/disable terminfo more precisely by os

[GHC]

#7700: iOS patch no 3: enable/disable terminfo more precisely by os
--------------------------------+-------------------------------------------
  Reporter:  StephenBlackheath  |          Owner:                  
      Type:  feature request    |         Status:  new             
  Priority:  normal             |      Milestone:  7.8.1           
 Component:  Compiler           |        Version:  7.7             
Resolution:                     |       Keywords:                  
        Os:  Unknown/Multiple   |   Architecture:  Unknown/Multiple
   Failure:  None/Unknown       |     Difficulty:  Unknown         
  Testcase:                     |      Blockedby:                  
  Blocking:  7724               |        Related:                  
--------------------------------+-------------------------------------------
Changes (by StephenBlackheath):

  * owner:  igloo =>
  * status:  closed => new
  * resolution:  fixed =>


Comment:

 Your changes don't quite fix it for darwin -> iOS, because of this
 sequence of events:

  1. On a darwin -> iOS, PACKAGES_STAGE0 gets terminfo but PACKAGES_STAGE1
 doesn't.

  2. This line works for everything in PACKAGES_STAGE1, but there's no
 similar line for PACKAGES_STAGE0
     {{{BUILD_DIRS += $(patsubst %, libraries/%, $(PACKAGES_STAGE1))}}}

  3. So {{{libraries/terminfo}}} never gets added to BUILD_DIRS.

 The output is this:
 {{{
 Configuring ghc-pkg-6.9...
 ghc-cabal: At least the following dependencies are missing:
 terminfo ==0.3.2.5
 make[1]: *** [utils/ghc-pkg/dist/package-data.mk] Error 1
 make: *** [all] Error 2
 }}}

 I attach a patch to fix it. When working on it before I suspected some
 order dependence in the inclusion of the build dirs, and I haven't sanity
 tested a complete build yet.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7700#comment:10>
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