[bug #61226] Missing included files that have rules don't show as an error

[Dmitry Goncharov]

Follow-up Comment #10, bug #61226 (project make):

[comment #9 comment #9:]
> I will leave this issue open to think about how to best introduce a
backward-incompatible change that might help in this situation.

Do i understand it correctly, that as long as compatibility allows, you'd like
make to fail whenever make cannot include a makefile, as long as the included
makefile has a rule with a recipe, even empty?

i'd like to mention that en empty recipe in a force rule has the benefit of
avoiding a redundant implicit search. This helps performance and makes a
meaningful debug output, because it removes repetitive "Looking for an
implicit rule..." and "No implicit rules found..." for each .d file.
So, i prefer rules like

++++
%.d:;
%.h:;
----


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