Andrew Coppin wrote:

Anyway, the point I'm trying to get to is... would it be hard for however maintains this library to add a little more flexibility in what it can do please?

In the new System.Process, that comes with GHC 6.10.1:

Prelude System.Process> createProcess (shell "echo $FOO"){ env = Just [("FOO","BAR")] }
Prelude System.Process> BAR

Cheers,
        Simon
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