Ceph

After ensure_decent_gcc_on_rh, the command "grep -q -i error: $DIR/yum-builddep.out" wrongly catches the following string "ValueError: SELinux policy is not managed or store cannot be accessed" as error (despite devtoolset is properly updated).

That workaround comes from 739ef0f9a3a065dbb1a584f8c324b86e5dbfea68 where yum-builddep was not returning proper error codes. To fix it it'd be necessary to find the whole "error" string. However, running strings on yum-builddep does not reveal any "error" string, so that error message will come from another tool. My suggestion would be to disable the current error catching mechanism, while being watchful at possible issues until we verify that no failures are happening.