kpimtextedit fails to cross build from source, because its openbox
dependency is not cross-satisfiable. It's only used for testing (or
actually it was only used for testing, but those tests are not presently
run), so we may annotate it <!nocheck>. I tried comparing a nocheck
build with a full build, but there are unexpected differences as
different symbols are exported depending on BUILD_TESTING, see
src/kpimtextedit_private_export.h. Please consider applying the attached
patch in forky.

Helmut