AdHoc::on_attach(..) not present in v0.5-rc - Alternative?

[skerr0]

I was trying to add a fairing via AdHoc. Within the inline function, I wanted to access the rocket config to access some custom values in this function.

Documentation has some examples using AdHoc::on_attach(), which look appropriate for this purpose. This function is not available in rc0.5-rc. What is the recommended way of accessing the rocket configuration within an AdHoc fairing?

[SergioBenitez]

Use on_ignite or on_liftoff.