[GHC] #8260: Parallel build behaves erratic under Windows

[GHC]

#8260: Parallel build behaves erratic under Windows
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       Reporter:  schyler         |             Owner:
           Type:  bug             |            Status:  new
       Priority:  normal          |         Milestone:
      Component:  Build System    |           Version:  7.7
       Keywords:                  |  Operating System:  Windows
   Architecture:                  |   Type of failure:  Building GHC failed
  Unknown/Multiple                |         Test Case:
     Difficulty:  Unknown         |          Blocking:
     Blocked By:                  |
Related Tickets:                  |
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 Under Windows, `make -j4` will freeze randomly all through the build
 system (every ~ 1-2 minutes). The only way to get it to resume it is to
 kill the make process and restart it. It sometimes even freezes on things
 like `rm` or `happy`.

 This makes building GHC take an unbearably long time.

 Tested on latest MinGW.

 {{{
 GNU Make 3.81
 Copyright (C) 2006  Free Software Foundation, Inc.
 This is free software; see the source for copying conditions.
 There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
 PARTICULAR PURPOSE.

 This program built for i686-pc-msys
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8260>
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The Glasgow Haskell Compiler