Simon Marlow simonmar at
Thu Jul 8 04:57:09 EDT 2004

On 07 July 2004 22:59, Peter Simons wrote:

> I was wondering what the state of the System.Process module
> described on
> is?
> I have tried to use the various POpen-like implementations
> out there, but _none_ of them works with the most current
> GHC. Is there any way to communicate with external programs
> at the moment? Posix-only would be suffice at the moment.

I posted code with POSIX & Windows versions recently:

It's nearly finished, I hope to get it into GHC 6.4.

You need to compile with -threaded in order to get a non-blocking


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