- bsc#1185952: fix build with llvm12 on s390x.
0001-jit-Workaround-potential-datalayout-mismatch-on-s390.patch
- bsc#1179945: Re-enable icu for PostgreSQL 10.

- Upgrade to version 13.4:
https://www.postgresql.org/docs/13/release-13-4.html
* CVE-2021-3677 (boo#1189748)
The planner could create an incorrect plan in cases where two
ProjectionPaths were stacked on top of each other. The only
known way to trigger that situation involves parallel sort
operations, but there may be other instances. The result would
be crashes or incorrect query results. Disclosure of server
memory contents is also possible.

- bsc#1187751: Make the dependency of postgresqlXX-server-devel on
llvm and clang optional (postgresql-llvm-optional.patch).