[Bug-kawa] [bug #33325] using setIndirectDefines safely

[Per Bothner]

Update of bug #33325 (project kawa):

                  Status:                    None => Need Info              
             Assigned to:                    None => bothner                

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Follow-up Comment #1:

This does not seem like the right solution.  Setting a static flag to control
behavior usually isn't.  (I know there are a number of these in Kawa, but I
don't like it, and in any case most of these are set as defaults from the Kawa
command line, where setting global state might be tolerable.)

So the obvious question is: Why is setIndirectDefines called too late?  Would
it be possible to call Environment.make (followed by Environment.setCurrent)
explicitly and early when the thread is created?  Or perhaps add a new
Environment.makeShared factory method?

If we really need a global flag, it might be cleaner to use a 
gnu.mapping.ThreadLocation (which is what Scheme's make-parameter is built
on).

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