Subject: bug#33728: 27.0.50; [HarfBuzz] cursor flickering or blinking very fast

From: Glenn Morris <[email-masked]>
Date: Thu, 13 Dec 2018 19:05:50 -0500

John Shahid wrote:

> I didn't use the configure option but when I run ldd I see that the
> emacs binary is making use of the library:
>
>   $ ldd ~/bin/emacs-harbuzz/bin/emacs | grep -i har
>           libharfbuzz.so.0 => /lib/libharfbuzz.so.0 (0x00007f2e40175000)

This is also true for me eg in Emacs-26. It is brought in as a
dependency (eg of librsvg), but not used directly.

It's apparent from "Configured features" that you don't have HarfBuzz.