trying to install llvm-toolset-7 on rhel 7 machine instructions say to first enable rhel-7-server-devtools-rpms. however, it is not available to me.
subscription-manager repos --enable rhel-7-server-devtools-rpms
Error: 'rhel-7-server-devtools-rpms' does not match a valid repository ID. Use "subscription-manager repos --list" to see valid repositories.