Janne Hellsten <janne@hybrid.fi> writes:

> Thank you Markus and David, this is sort of what I was afraid of (e.g., 
> curdir is shared among threads). Thank you for clarifying this.
> 
> As my build scripts require the working directory to be set, I think I 
> have to work-around this and do something along the lines of:
> 
>     Unix.system "cd my_working_dir && build_cmd"
> 
> I wonder if there's some other way of doing this portably and in a 
> thread-safe fashion?

Instead of using Unix.system, do a fork()-and-exec() (as Unix.system
presumably does under the hood), and set the current directory in the
child process after the fork and before the exec.  Take a look at the
implementation of Unix.system in otherlibs/unix/unix.ml to see what I
mean.

--KW 8-)

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