[GHC] #11744: Latest Xcode update violates POSIX compliance of `nm -P`

[GHC]

#11744: Latest Xcode update violates POSIX compliance of `nm -P`
---------------------------------+----------------------------------------
        Reporter:  hvr           |                Owner:
            Type:  bug           |               Status:  new
        Priority:  highest       |            Milestone:
       Component:  Build System  |              Version:
      Resolution:                |             Keywords:
Operating System:  MacOS X       |         Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown  |            Test Case:
      Blocked By:                |             Blocking:
 Related Tickets:                |  Differential Rev(s):  phab:D2113
       Wiki Page:                |
---------------------------------+----------------------------------------
Changes (by hvr):

 * differential:   => phab:D2113


Comment:

 See phab:D2113 for a early idea expressed as a patch I put up for
 discussion

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11744#comment:13>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler