Lessons from converting a large project to XCVB

Here is a summary of the kind of changes we had to make to QRes for it to be built with XCVB. Note that each and every of these changes is necessary to achieve successful incremental builds with ASDF, too, except for some additional EVAL-WHENs. We had to:

Along the way we made many misguided attempts to do things otherwise; this reflects the correct solutions we found. If you're interested in the bad "solutions" we sometimes came up with at first, including bad ideas we tried with XCVB or ADG, contact me.