Proposal: Move the throwErrnoPath* functions from unix:System.Posix.Error to base:Foreign.C.Error

[Duncan Coutts]

On Sun, 2007-07-29 at 13:09 +0100, Ian Lynagh wrote:
> Proposal: http://hackage.haskell.org/trac/ghc/ticket/1566
> 
> Currently, unix:System.Posix.Error has a number of throwErrnoPath*
> functions which are entirely portable, but they are not available on
> Windows due to being in the unix package.
> 
> In the thread beginning
>     http://www.haskell.org/pipermail/libraries/2007-July/007793.html
> Simon Marlow writes:
> 
>     When I needed to add some error-related functionality for the POSIX
>     library, I didn't want to add extra stuff to Foreign.C.Error beyond
>     what was specified in the FFI spec, so I added System.Posix.Error
>     instead. This was just conservative; we could probably add
>     throwErrnoPath and friends to Foreign.C.Error (with the usual
>     proposal process).
> 
> I propose that these functions are moved to base:Foreign.C.Error. They
> would still be re-exported by unix:System.Posix.Error to minimise
> breakage.

This seems eminently sensible to me.

Duncan