System.Cmd.system tries to execve("n/sh", ...)

[Simon Marlow]

> I'm experiencing what may be a similar bug using GHC 5.04.1 on RedHat
> Linux.  The command line argument to a program invoked from my Haskell
> program sometimes is unexpectedly empty, sometimes it 
> contains a substring
> of an environment variable's value, sometimes it contains the correct
> argument string  ("7", in my current case).  

There is a known bug in Posix.executeFile, see:

http://www.haskell.org/pipermail/glasgow-haskell-bugs/2002-September/002
653.html

If the replacement version of executeFile works for you, please let me
know, and I'll fix it in 5.04.2.

Cheers,
	Simon