>> The list of source files and resulting object files isn't known until >> `make` is launched.
It seems to me that Automake knows more about the build than a generic system would, and could implement this. Well, at least it could in most cases, for example those where all the sources are visible in the Makefile.am. FWIW this is the second time in the last week or so that I've heard this request. It seems like a reasonable thing to attempt. Tom