#546: look for haddock in ghc's bin dir before using findExecutable ------------------------------+--------------------------------------------- Reporter: duncan | Owner: Type: defect | Status: new Priority: normal | Milestone: Cabal-1.8 Component: Cabal library | Version: 1.6.0.2 Severity: normal | Keywords: Difficulty: easy (<4 hours) | Ghcversion: Platform: Windows | ------------------------------+--------------------------------------------- With current versions of haddock it's important to pick a version that's consistent with the ghc in use. Normally we use `System.Directory.findExecutable` to find tools like `haddock`. However on Windows, the Win32 `SearchPath` function looks not just in the `%PATH%`. It looks first in the directory where the .exe of the current process lives (which might either be `runghc.exe` or it might be `cabal.exe`) and only secondarily in the `%PATH%`. So, for ghc, Cabal should look for haddock first in ghc's bin dir and then if it's not there, use `findExecutable` to look in various other places. Reported originally on the [http://haskell.org/pipermail/cabal- devel/2009-April/005161.html mailing list] and as a [http://hackage.haskell.org/trac/ghc/ticket/3186 ghc ticket]. -- Ticket URL: http://hackage.haskell.org/trac/hackage/ticket/546 Hackage http://haskell.org/cabal/ Hackage: Cabal and related projects