I'm opening this mainly for tracking adding ARCH=riscv support.
USE tests started on Sun Apr 24 01:21:00 CST 2022 FEATURES=' test' : REQUIRED_USE not satisfied (probably) for =sys-libs/db-4.8.30-r6 USE='cxx -doc -examples -tcl' succeeded for =sys-libs/db-4.8.30-r6 USE='-cxx doc -examples -tcl' succeeded for =sys-libs/db-4.8.30-r6 USE='cxx doc -examples -tcl' succeeded for =sys-libs/db-4.8.30-r6 USE='cxx -doc examples -tcl' succeeded for =sys-libs/db-4.8.30-r6 USE='cxx doc examples -tcl' succeeded for =sys-libs/db-4.8.30-r6 USE='-cxx -doc -examples tcl' succeeded for =sys-libs/db-4.8.30-r6 USE='cxx -doc -examples tcl' succeeded for =sys-libs/db-4.8.30-r6 USE='-cxx doc -examples tcl' succeeded for =sys-libs/db-4.8.30-r6 USE='cxx doc -examples tcl' succeeded for =sys-libs/db-4.8.30-r6 USE='-cxx -doc examples tcl' succeeded for =sys-libs/db-4.8.30-r6 USE='cxx -doc examples tcl' succeeded for =sys-libs/db-4.8.30-r6 USE='cxx doc examples tcl' succeeded for =sys-libs/db-4.8.30-r6 I've examined the log of FEATURES='test', most failure of which seems to be time constraint related. I'll try to investigate.
Close as #837629 stated Berkeley DB would be phased out.