2.26.106: a new primary/secondary convention for subsystems and more
A system named foo/bar will be looked up in a registered file foo.asd. This makes it possible to sensibly name several systems in a .asd file and still have asdf find them all by name. We now use it to not have the asdf header be part of asdf-driver. A new generic operation build-op makes it possible to deal with the fact that the default operation for systems need not be load-op, yet that the end-user does not want to have to know the exact operation for each of the system he uses. ensure-pathname has been improved again, and its clients tweaked. remove-keys was made more sensible by using EQL rather than STRING-EQUAL. :version need not take the first form in a file, but can take a path to a subform. This makes it possible to get the exact subform in a Lisp source file that has the string. See SUB-OBJECT for how these paths work. Cleanup of the semantics of ENSURE-FUNCTION on CONSes: use APPLY, not EVAL.