[GHC] #7559: `./configure --with-macosx-deployment-target=` doesn't work

[GHC]

#7559: `./configure --with-macosx-deployment-target=` doesn't work
---------------------------------+------------------------------------------
    Reporter:  altaic            |       Owner:  igloo       
        Type:  bug               |      Status:  patch       
    Priority:  high              |   Milestone:  7.8.1       
   Component:  Build System      |     Version:  7.6.1       
    Keywords:                    |          Os:  MacOS X     
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown
  Difficulty:  Unknown           |    Testcase:              
   Blockedby:                    |    Blocking:              
     Related:                    |  
---------------------------------+------------------------------------------
Changes (by igloo):

 * cc: chak (added)
  * difficulty:  => Unknown
  * priority:  normal => high
  * owner:  => igloo
  * milestone:  => 7.8.1


Comment:

 Thanks for the report, but I think that you are right that we should
 consider whether this is something that is worth supporting at all.

 Am I right in thinking that, rather than having some Darwin-specific
 variables, that people who want to use this could just add some flags to
 variables like `SRC_CC_OPTS` and `SRC_LD_OPTS`?

 If so then (particularly given how few users I expect want to use this) I
 think we'd be better off just removing this.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7559#comment:2>
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