On Thu, 2020-05-28 at 09:00 +0000, Marco Lechner wrote: > Hi Markus, > > at the moment we are facing similar conflicts on Oracle LInux 7 (wich > is derived from RHEL) – we manage our machines using Spacewalk. The > conflicts occur (as expected) on Spacewalk as well as on manually > using yum: > > Fehler: Paket: postgresql11-devel-11.8-1PGDG.rhel7.x86_64 > (oraclelinux7postgresql11) > Benötigt: llvm-toolset-7-clang >= 4.0.1 FWIW, postgresql-devel can't be updated on CentOS 7 currently either. The 12.2 packages were fine but I have not been able to update to 12.3. Error: Package: postgresql12-devel-12.3-1PGDG.rhel7.x86_64 (pg12) Requires: llvm-toolset-7-clang >= 4.0.1 That llvm-toolset-7-clang dependency is not present in the CentOS, EPEL or PostgreSQL repos.