[reportlab-users] setup.py findFile() logic fragile to symlink loops

[Robin Becker]

Hi Michael,

can you try the attached patch. I tested locally with an artificially bad setup with plenty of loops. It failed 
initially, but worked with the new code on linux/windows10.

It fixes both findFile and listFiles.

I am isolating with a positive lateral flow today so there might be some obvious flaw.

On 28/03/2022 09:40, Michał Górny wrote:
> Hi,
> 
> I've just gotten a report from a Gentoo user that reportlab's setup.py
> hangs on build command.  After short debugging, we've discovered that
> the findFile() function used to look for freetype2 headers is fragile to
> symlink loops.
> 
........


-- 
Robin Becker
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