ghc 6.0.1 win98 System.system too successful?

[Alastair Reid]

On Saturday 18 October 2003 4:04 pm, Claus Reinke wrote:
> Shouldn't this return something other than ExitSuccess, occasionally?

I don't know if it's the same problem but...

On Windows, Hugs' implementation of System.system always returns ExitSuccess 
because the Windows routine it calls doesn't return a useful exit status.

My very vague memory from looking into this some years back was that DOS 
programs don't have a consistently interpreted exit status the way Unix 
programs do and use some kind of out-of-band communication to indicate 
failure to the caller.

One would hope that cygwin would change this situation but, IIRC, ghc-compiled 
programs don't use cygwin so they can't benefit from having it work properly 
under cygwin...

--
Alastair Reid