Linux (as an example), it is possible for the existence check to fail
because the file is not yet recognized by the file system. Although
the loop has a 250mS delay, in practise, the existence test in the for
loop is successful and no delay is introduced.
Next, this takes care of the two, unpredictable, situations where a
script fails to compile. The first is caused by an occasional SEGV in
the underlying mono VM while mcs is running, the second is caused by
file system latency.
Signed-off-by: dr scofield (aka dirk husemann) <drscofield@xyzzyxyzzy.net>