I've been wondering how hard it would be to add a "--debug=l (lines)" (or
maybe "p/parsed or s/serialize") option to "straighten out" conditionals by
printing only the lines actually parsed. The effect would be to take a
potentially very complex makefile suite with many includes and conditional
branches, or possibly both as in "$(if $(FOO),$(eval include $(FILE)))",
and show one valid path through them. The goal would be not to produce a
working makefile, though I don't know why it wouldn't work, but to help
analyze and understand a complex legacy system. It feels like this should
be doable just by adding a conditional printf() in the right place. True?

Thanks,
David
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