Re: master 616da8fa8e: Merge branch 'feature/fix-the-long-lines-display-bug'

[Gregory Heytings]

> > One of the design principles of that feature is that it should be as 
> > transparent as possible, and it is.  The point of adding a variable to 
> > control the feature was to avoid introducing an arbitrary constant at 
> > the C level, and also to allow users who really enjoy slowdowns to turn 
> > these optimizations off
>
> Then why is it a number and not a boolean? A number that I don't know 
> how to change is as good as a constant.

You don't have to change it.

> > Vertical-motion is not slow anymore.
>
> Could you please show a file where I can appreciate a noticable speed-up 
> in vertical-motion?

Are you kidding?  Try, for example:

https://github.com/Wilfred/ReVo-utilities/blob/a4bdc40dd2656c496defc461fc19c403c8306d9f/revo-export/dictionary.json?raw=true

No type M-> C-p.  Before the merge this takes about 50 seconds (about 20 
seconds for M-> and 30 seconds for C-p).  Now it is instantaneous.  And 
that's only a moderately large file (20 MB).  Try the same with a 1 GB 
file, and M-> will never end.

Meanwhile, could you please fix the build breakage introduced by 
a29a3ad55d?