Comment 3 for bug 1934664

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Pierre Neidhardt (ambrevar) wrote : Re: [Bug 1934664] Re: Feature request: Use temp file when superseding file

Good question.

I had a look at the doc, no rationale seems to be given:
https://ccl.clozure.com/docs/ccl.html#streams

So I looked at the source. `open` calls to `make-file-stream`, but
there is no comment or documentation there as to why they create a temp
file and how they deal with full file systems.

So I guess this is an unresolved problem with CCL.