Filing a bug so I don't forget. When libxpt changes, xpidl doesn't get re-linked. I know this is a problem, because I just broke it by removing the special logic in Makefile.in that used to handle the dependency. Waiting clues from the .builds newsgroup on the right way to restore it; failing that, I'd like to add $(EXTRA_DEPS) as a dependency of $(PROGRAMS) in rules.mk, and define EXTRA_DEPS = $(DIST)/lib/libxpt.a in the xpidl Makefile.in.

Looks like $(EXTRA_DEPS) was the way to go. Thanks to Brian Ostrom for helping me get it right.