Failed assertion dialog box ATTN: Takashi Yano

Thomas Wolff
Fri Nov 20 07:09:28 GMT 2020

Am 20.11.2020 um 03:04 schrieb Duncan Roe:
> On Fri, Nov 20, 2020 at 09:19:29AM +0900, cygwin wrote:
>> Hi all,
>> On Fri, 20 Nov 2020 11:06:58 +1100
>> Duncan Roe wrote:
>>> On Thu, Nov 19, 2020 at 07:30:20PM +0100, Thomas Wolff wrote:
>>>> It does not seem to happen in xterm which is weird.
>>> It happens in an xterm for me.
>>> xterm is /dev/pty1 and mintty is /dev/pty0. They both do it.
>>> So I think it has to be pseudo-console.
>>> (xterm has DISPLAY set to a Linux system but that shouldn't matter should it?)
>> Could you please try latest cygwin snapshot?
>> --
>> Takashi Yano <>
> Tried 20200909 - no popup
Still interesting, though, is this observation:
the message text in the popup is different from the text if it appears 
in the terminal, suggesting that cygwin function __assert_func (from 
winsup/cygwin/ is somehow injected into the gcc runtime in the 
popup cases only, which raises the technical questions how it could be 
injected at all and why only in some cases.

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