Portuguese keyboard without dead keys variant

localectl list-x11-keymap-variants pt
mac
mac_nodeadkeys
nativo
nativo-epo
nativo-us
nodeadkeys

There is no sundeadkeys variant to choose from. Any help please?

Thank you.

Isn’t that no dead keys? Without dead keys is the same as no dead keys, or am I missing something…

There is a variant variant named sundeadkeys. Calamares has it but it is missing from my system.