Follow-up Comment #4, bug#63840 (group make):
Sorry for the delay in examining this bug. I understand what you are saying.
A counter-argument would be that if you wanted to use "-r" and also provide
match-anything rules, that you should also be assigning proper suffixes via
".SUFFIXES" to ensure that your source files are handled properly:
hello.c:
%: %.o; $(info $@ from $<)
# this should be added since you have a match-anything rule
.SUFFIXES: .c
However, I tend to agree with you that this is perhaps too much "inside
baseball" for the default behavior.
I think you are mostly correct in your determination of the problem with one
exception: when the .SUFFIXES list is cleared explicitly, then we should not
create any dummy pattern rules and thus these match-anything rules SHOULD be
matched.
What we should probably do is not clear the .SUFFIXES list by default when -r
is given, but instead simply not create the default rules associated with
those suffixes.
I have a simple patch that does that; if you agree that's OK I'll push it
along with your tests.
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