[GHC] #3186: findExeutable does not respect order of search path on Windows

[GHC]

#3186: findExeutable does not respect order of search path on Windows
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 Reporter:  duncan               |          Owner:                  
     Type:  bug                  |         Status:  new             
 Priority:  normal               |      Milestone:                  
Component:  libraries/directory  |        Version:  6.10.2          
 Severity:  normal               |     Resolution:                  
 Keywords:                       |       Testcase:                  
       Os:  Windows              |   Architecture:  Unknown/Multiple
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Comment (by duncan):

 Ahh! It's looking in the directory where the .exe for the currently
 running process lives. So when we're in ghci (or runghc Setup) then it
 always finds the haddock.exe in the same dir as ghci/runghc.

 Neil, I'm guessing that you're running `cabal.exe` from `C:\Program
 Files\Haskell\bin\` is that correct? If so, that explains why it's picking
 up `haddock.exe` from the same directory.

 So the question is what behaviour we want. I guess it is good if
 `findExecutable` and `runProcess` are consistent with each other. However
 it should be clearly documented along with `findExecutable` that the
 location of the .exe of the current process is relevant. Cabal should
 probably look for haddock first in the ghc bin dir and only secondarily
 try using `findExecutable` (sigh).

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3186#comment:3>
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