Comment 29 for bug 991493

The alternatives system is a high level tool meant to unify this process across all applications. It should be a solution flexible enough to cover and even support any application level tools. If you see cause for the alternatives system to make calls into llvm-defaults please go ahead and add that feature to the tool.

My advice would be to replace llvm-defaults with a wrapper around the update-alternatives tool, this would seem to be easier than having the update-alternatives tool call the llvm-defaults tool.

For generic problems that affect many applications it's important that applications do not construct individual solutions! This puts a heavy burden on the users to learn each applications system.