Well, that was a great big fail. I typed in the meson configure command and got this:
bash: meson: command not found
So I installed a package called “meson” and tried again, and got this:
Meson configurator encountered an error:
ERORR: Directory /home/elle/code/gimpdefault/build/json-glib
does not seem to be a Meson build directory
So unless/until someone can explain how to get past this brick wall, I guess this is where I’ll stop. In the meantime I’ll go post an apology on my “how to build GIMP” page.
I loathe the new GTK stuff. So very much loathe all of it.