Follow-up Comment #4, bug #38420 (project make):
The only option I can think of is using $(shell ...) to determine the real
path rather than the built-in realpath function. This will be slower, but
more reliable (as far as I'm aware all the EINTR issues with shell have long
since been solved).
Maybe something like: $(shell cd $(dir $<) && pwd)
Or, if you don't really need the full power of realpath you could switch to
abspath. That is just a string manipulation function so it doesn't do any
system calls that might be interrupted with EINTR.
It really depends on your situation. But there's no way I know of to fix the
problem with realpath, without a code change.
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