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[bug #38420] $(realpath ...) doesn't recover from signals

From: Paul D. Smith
Subject: [bug #38420] $(realpath ...) doesn't recover from signals
Date: Wed, 27 Feb 2013 18:21:05 +0000
User-agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.22 (KHTML, like Gecko) Chrome/25.0.1364.97 Safari/537.22

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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