HTML Plugin for Claws-Mail - 18.04?

[Ralf Mardorf]

On Sun, 27 Oct 2019 17:20:11 -0400, Lee Underwood wrote:
>So, I found Bison and installed it. But I still get the same error
>message.

Hi Lee,

you need to install the package
https://packages.ubuntu.com/bionic/libbison-dev .

>BTW, what happens if the previous version of CM does not get removed?

Build with the same prefix, the new version overwrites files with
equal names in equal paths. Build with another prefix, it's possible
to install the new version, by keeping the old version from official
packages, while this could provide two different versions, that could
work without issues, it also could cause issues, such as loading
incompatible plugins, from the wrong path.

Regards,
Ralf