Restore SEM_FAILCRITICALERRORS [was: Aren't Windows System Error popups meant to be disabled in Cygwin?]

David Allsopp david@tarides.com
Fri Feb 2 09:43:47 GMT 2024


On Thu, 1 Feb 2024 at 10:02, Corinna Vinschen via Cygwin
<cygwin@cygwin.com> wrote:
>
> The behaviour changed in 2020
>
> https://cygwin.com/git/?p=newlib-cygwin.git;a=commitdiff;h=21ec498d7f912
>
> not without a discussion
>
> https://cygwin.com/pipermail/cygwin-patches/2020q4/010870.html

Aha, thank you! (congrats on the 3.5 release, in passing, btw).
Definitely not a regression, then (subject edited).

However, this patch came from MSYS2, and subsequently they seem to
have found it problematic for the same reason as me
(https://github.com/msys2/msys2-runtime/pull/18#issuecomment-810897624)
and have just recently reintroduced the flag
(https://github.com/msys2/msys2-runtime/commit/7616b8a2e0ffcf068b47e1a66bbb1dbd7d9b5c50)
to control it.

The reasoning in
https://cygwin.com/pipermail/cygwin/2006-August/150081.html seems as
valid now as it did in 2006.

Is it possible to revisit having the flag, or even just reverting the behaviour?

FWIW, it's been "hurting" us over in OCaml-land since zstd support was
added roughly a year ago - configure can tell us that mingw-w64's zstd
is available, but woe betide us if we run the test program to see if
it actually works, but the user forgot to add the sys-root into PATH,
because at that point the CI system is down...

Thanks,


David


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