Follow-up Comment #2, bug #51495 (project make):
Henrik, thanks, this is indeed a nice suggestion, which is indeed a trick
worthy to appear in a make book :-)
It has two problems, though, compared to real built-in support for this
feature:
The first problem is of course unwieldiness - it is harder and uglier to
create a makefile this way (splitting it into many separate makefiles), and
it's easier and more natural to just forget to do it - so most makefiles will
continue not to enjoy this feature.
The second problem is that it doesn't support user-specified parameters. In
your example, imagine that a user runs "make LDFLAGS="-lm -s". link.mk hasn't
changed, so the makefile will not know that the linking stage needs to run
again, even though the rule did change because LDFLAGS changed since the last
run.
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