Re: [PATCH] Fix autoreconf -fvi failure on OS/2

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On 2025-02-08 19:07, KO Myung-Hun wrote:
> OS/2 does not allow file actions with a file name to opened files. As a
> result, copy(), chmod() and update_file() fail.

Ouch, that means OS/2 is inherently insecure with temp files due to 
races in some situations. However, the Autoconf code is already insecure 
even on non-OS/2 platforms, so I guess it's no extra harm done.


> +      copy ($src, $^O eq 'os2' ? $temp : $tempname)

I'd rather not have os2-specific code if we can avoid it, as that makes 
testing harder cross-platform. I installed the attached instead; please 
give it a try.

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