> In the cmake-1.1 PortGroup, where this is all handled, I don't see that > the appropriate configure args are ever actually added to the > configure.pre_args list.
That's done via the `cmake::ccaching` procedure. I can confirm that `CMAKE_<lang>_LAUNCHER` works with the make and ninja generators. > For our Python ports - and specifically, those that are using Ninja - the > CCache variables must be set via the environment to have an effect. Which ports are that (i.e. where does cmake come in with those)?