Kevin Cozens authored Jul 11, 2020 and Jehan committed Aug 23, 2020

To build GIMP without vala the arguments "--enable-vala=no --with-vala=no"
must be used during the configuration process. If the --with-vala is not
provided the build process will still try to build some vala based plug-ins.

Fixes GNOME/gimp#5389