[GHC] #8102: Parallel build of HEAD consistently fails

[GHC]

#8102: Parallel build of HEAD consistently fails
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        Reporter:  edsko             |            Owner:
            Type:  bug               |           Status:  patch
        Priority:  normal            |        Milestone:
       Component:  Build System      |          Version:  7.7
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Changes (by thoughtpolice):

 * cc: marlowsd@…, igloo@… (added)
 * status:  new => patch


Comment:

 Simon, Ian, can you double check this one? I would think compiling the C
 sources would require generating the `.depend` file, and with the rule
 Kazu changed, the `.depend` file would depend on `gmp.h` being in place
 first, yes? So I would think this rule is correct already.

 We also don't do anything quite like this anywhere else from what I can
 tell, although this seems like an odd case since we build GMP in place and
 all...

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8102#comment:4>
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