All dependent ports except www/epiphany build fine on 11.1/amd64 with the following make.conf:
```
OPTIONS_SET= WAYLAND
editors_emacs-devel_SET= XWIDGETS
```
The build of Epiphany was trivial to fix. Patch included here.
Builds on 10.3/i386 with
```
editors_emacs-devel_SET= XWIDGETS
```
were fine too.
Runtime appears to be ok on 11.1/amd64 and 12.0-CURRENT.