Re: [Haskell-cafe] GLFW not working in Cabal 1.18

10 Sep 2013

      the work around i did for cabal 1.18 compatibility for llvm-base can be
found here:

https://github.com/bos/llvm/blob/master/base/Setup.hs#L116-L144
this used the fact that cabal exposes the cabal version as a library value
to generate a correct wrapper for either API version

alternatively, you can change your setup.hs so that api isn't needed.

also: before emailing cafe, its always good to email the listed maintainers
first! (i've included them on CC for this email)

On Tue, Sep 10, 2013 at 9:27 PM, Thiago Negri  wrote:
...
The package GLFW is not building in Cabal 1.18.
Setup.hs [1] depends on `rawSystemStdInOut` [2] that changed signature
between 1.16 and 1.18.
Is this considered a public API of Cabal?
Cabal 1.16
rawSystemStdInOut
 :: Verbosity
 -> FilePath
 -> [String]
 -> Maybe (String, Bool)
 -> Bool
 -> IO (String, String, ExitCode)
Cabal 1.18
rawSystemStdInOut
 :: Verbosity
 -> FilePath
 -> [String]
 -> Maybe FilePath -- new arg
 -> Maybe [(String, String)] -- new arg
 -> Maybe (String, Bool)
 -> Bool
 -> IO (String, String, ExitCode)
Compilation output:
[1 of 1] Compiling Main             (
/tmp/GLFW-0.5.1.0-4035/GLFW-0.5.1.0/Setup.hs,
/tmp/GLFW-0.5.1.0-4035/GLFW-0.5.1.0/dist/setup/Main.o )
/tmp/GLFW-0.5.1.0-4035/GLFW-0.5.1.0/Setup.hs:167:33:
    Couldn't match expected type `IO (t0, t1, ExitCode)'
                with actual type `Maybe (String, Bool)
                                  -> Bool -> IO (String, String, ExitCode)'
    In the return type of a call of `rawSystemStdInOut'
    Probable cause: `rawSystemStdInOut' is applied to too few arguments
    In a stmt of a 'do' block:
      (out, err, exitCode) <- rawSystemStdInOut
                                verbosity "cc" (["-c", path, "-o",
objPath] ++ flags) Nothing False
    In the expression:
      do { hClose outHandle;
           hPutStr inHandle contents;
           hClose inHandle;
           (out, err, exitCode) <- rawSystemStdInOut
                                     verbosity "cc" (["-c", path, ....] ++
flags) Nothing False;
           .... }
/tmp/GLFW-0.5.1.0-4035/GLFW-0.5.1.0/Setup.hs:167:113:
    Couldn't match expected type `Maybe [(String, String)]'
                with actual type `Bool'
    In the fifth argument of `rawSystemStdInOut', namely `False'
    In a stmt of a 'do' block:
      (out, err, exitCode) <- rawSystemStdInOut
                                verbosity "cc" (["-c", path, "-o",
objPath] ++ flags) Nothing False
    In the expression:
      do { hClose outHandle;
           hPutStr inHandle contents;
           hClose inHandle;
           (out, err, exitCode) <- rawSystemStdInOut
                                     verbosity "cc" (["-c", path, ....] ++
flags) Nothing False;
           .... }
Failed to install GLFW-0.5.1.0
[1] http://code.haskell.org/GLFW/Setup.hs
[2]
https://github.com/haskell/cabal/blob/d16c307c33fb7af19d8f17a2ad8be4902a3af2...
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Re: [Haskell-cafe] GLFW not working in Cabal 1.18

Carter Schonwald