I tried the nightly build and have had the same crash - and I know its 
winminheight=0 as I had been operating for around a month with no crashes when 
I have it set to one. So somewhere, vim is using this number as a devisor - 
where it didn't use to (up until at least vim7.3.x.
Anyhow, I still haven't managed to compile Vim, but I will give it another shot 
(probably next week). I doubt the dump was very useful, but I did look at the 
code, and while I am not fluent in the code my guess is that the error is 
caused in window.c::set_fraction
    void
set_fraction(win_T *wp)
{
    wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT
                    + wp->w_height / 2) / (long)wp->w_height;
}

It seems like a good guess since I like to have winminheight set to 0 and thats 
when I see the crashes. I would note that there is at least one spot where 
w_height is checked to be greater than 0 (in win_split).

________________________________
From: [email protected] <[email protected]> on behalf of 
Dominique Pell? <[email protected]>
Sent: Tuesday, November 21, 2017 3:29 PM
To: vim_dev
Subject: Re: Vim 8 crashing on Windows with winminheight=0

Joseph Dornisch wrote:

> The wiki page does not load, and yes the second page does seem very out of
> date. MinGW also does not seem to have been updated in a long time, so I am
> wondering what exactly to use for compiling. I'm guessing I would need to
> figure out how to use it with Cygwin, but I don't want it to be strapped to
> Cygwin.

You can find recent builds for Windows here:

https://github.com/vim/vim-win32-installer/releases

Regards
Dominique

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