[GHC] #8620: make -j3 build of head on Mac 10.9 with xcode 5 fails

[GHC]

#8620: make -j3 build of head on Mac 10.9 with xcode 5 fails
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        Reporter:  George               |            Owner:
            Type:  bug                  |           Status:  new
        Priority:  normal               |        Milestone:  7.8.2
       Component:  Compiler             |          Version:
      Resolution:                       |         Keywords:
Operating System:  MacOS X              |     Architecture:  x86_64 (amd64)
 Type of failure:  Building GHC failed  |       Difficulty:  Unknown
       Test Case:                       |       Blocked By:
        Blocking:                       |  Related Tickets:
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Comment (by George):

 not sure if it helps but I am on 10.9.1 with 4 cpus and 12G of RAM

 Hardware Overview:

   Model Name:   iMac
   Model Identifier:     iMac11,1
   Processor Name:       Intel Core i5
   Processor Speed:      2.66 GHz
   Number of Processors: 1
   Total Number of Cores:        4
   L2 Cache (per Core):  256 KB
   L3 Cache:     8 MB
   Memory:       12 GB
   Processor Interconnect Speed: 4.8 GT/s

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8620#comment:7>
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