[GHC] #7327: Inconsistent behavior for relative paths in runProcess

[GHC]

#7327: Inconsistent behavior for relative paths in runProcess
----------------------------------+-----------------------------------------
    Reporter:  snoyberg           |       Owner:                  
        Type:  bug                |      Status:  infoneeded      
    Priority:  normal             |   Milestone:  7.8.1           
   Component:  libraries/process  |     Version:  7.6.1           
    Keywords:                     |          Os:  Unknown/Multiple
Architecture:  Unknown/Multiple   |     Failure:  None/Unknown    
  Difficulty:  Unknown            |    Testcase:                  
   Blockedby:                     |    Blocking:                  
     Related:                     |  
----------------------------------+-----------------------------------------
Changes (by igloo):

  * status:  new => infoneeded
  * difficulty:  => Unknown
  * milestone:  => 7.8.1


Comment:

 I'm confused; this behaves the same on Linux and OS X for me:
 {{{
 $ cat q.hs

 import System.Process

 main :: IO ()
 main = do ph <- runProcess "./runme.sh" [] (Just "sub")
                            Nothing Nothing Nothing Nothing
           ec <- waitForProcess ph
           print ec

 $ cat runme.sh
 #!/bin/sh

 echo Running root
 $ cat sub/runme.sh
 #!/bin/sh

 echo Running in sub
 $ ghc --make q
 $ ./q
 Running in sub
 ExitSuccess
 $
 }}}
 Can you tell me how I can reproduce the problem, please?

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7327#comment:1>
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