On Mon, 8 Mar 2021 at 16:15, I wrote: > Tried running yum update on my centos7 box. Get the following: > > Error: Package: postgresql12-devel-12.5-1PGDG.rhel7.x86_64 (postgresql_12) > Requires: llvm5.0-devel >= 5.0 > I tried adding the EPEL repo just in case that was the issue but it > hasn't made any difference. In case anyone else hits the same issue, I had a dead network-local cache of the epel repo in yum.repos.d that, even though it was marked as disabled, was blocking the live repo that I added later. Geoff