[GHC] #12062: Parallel make with -j0 and hs-boot leads to floating point exception

[GHC]

#12062: Parallel make with -j0 and hs-boot leads to floating point exception
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        Reporter:  ezyang            |                Owner:  petercommand
            Type:  bug               |               Status:  merge
        Priority:  low               |            Milestone:  8.0.2
       Component:  Runtime System    |              Version:  8.0.1-rc2
      Resolution:                    |             Keywords:  newcomer
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D2415
       Wiki Page:                    |
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Comment (by Ben Gamari <ben@…>):

 In [changeset:"6f804c249bf4ca9b8b3b63796fc36c0ec69a936b/ghc"
 6f804c24/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="6f804c249bf4ca9b8b3b63796fc36c0ec69a936b"
 check that the number of parallel build is greater than 0

 Fixes #12062.

 Reviewers: bgamari, thomie, austin, simonmar

 Reviewed By: bgamari, thomie, simonmar

 Subscribers: simonmar, thomie

 Differential Revision: https://phabricator.haskell.org/D2415

 GHC Trac Issues: #12062

 (cherry picked from commit f09d65474ed042360999cb88221d65b07bfb4b5f)
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12062#comment:7>
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