bug#47596: File descriptor error when exiting emacs on android 11

[Henrik Grimler]

Hi,

> You are operating on the wrong stream, so I do see a problem with this
> patch.  The purpose of this fragment is to close stderr, not the
> buffered copy of stderr.

> 
Thanks for the feedback!

> Is ADDRESS_SANITIZER defined in your build?

Yes, it is configured with emacs_cv_sanitize_address=yes. Setting this
option has been done for android since emacs 25, and supposedly fixed
some malloc issue back then [1]. I tried building without setting
emacs_cv_sanitize_address=yes just now (configure then sets =no), but
it does not seem to influence this fdsan error.

> In any case, I do want to wait for the Android developers to respond
> to the issue in their tracker.

I will update the issue and add the minimal non-working example
obtained here as well.

Best regards,
Henrik Grimler

[1]
https://github.com/termux/termux-packages/commit/8ce98d7fe9130cd151cc2ec34b3b1e7ecb0aeace#diff-8fd6b84ed67057870fa4f209d2309b53bf3c097b732cb3b8e639f58a37d138c1R7