Hi, The documentation https://www.gnu.org/software/automake/manual/automake.html#Include says:
"A special feature is that if the fragment is in the same directory as the base Makefile.am (i.e., %reldir% is .), then %reldir% and %canon_reldir% will expand to the empty string as well as eat, if present, a following slash or underscore respectively." IMO, this paragraph implies that if the fragment is in the same directory as the base Makefile.am - %reldir% without a following slash expands to empty, - %canon_reldir% without a following underscore expands to empty. But this is not the case. (And if it were, the %reldir% and %canon_reldir% feature would be unusable.) In fact, %reldir% without a following slash expands to a dot, and %canon_reldir% without a following underscore expands to an underscore. Suggested new text: A special feature is that if the fragment is in the same directory as the base Makefile.am (i.e., %reldir% is .), then - %reldir% together with a following slash will expand to empty, - %canon_reldir% together with a following underscore will expand to empty as well. Bruno