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Re: [libvirt] gnulib tests in libvirt broken by newer glibc 2.26

From: Daniel P. Berrange
Subject: Re: [libvirt] gnulib tests in libvirt broken by newer glibc 2.26
Date: Fri, 29 Sep 2017 09:45:14 +0100
User-agent: Mutt/1.9.0 (2017-09-02)

On Thu, Sep 28, 2017 at 04:41:37PM -0700, Paul Eggert wrote:
> That patch essentially negates the point of the test, which is that getopt
> should be visible from unistd.h. I'd rather fix the problem than nuke the
> test.
> Could you explain what the Gnulib problem is here? I can't really see it in
> your email. A self-contained example would help.
> For what it's worth, I could not reproduce the problem on Fedora 26 by doing
> this in Gnulib (this tells 'configure' to use Gnulib-supplied getopt.h and
> getopt.c):

Fedora 26 only has glibc 2.25 - you need to have Fedora rawhide to get
the broken behaviour, as that has glibc 2.26.90

> ./gnulib-tool --create-testdir --dir foo getopt-posix
> cd foo
> ./configure gl_cv_func_getopt_posix=no ac_cv_header_getopt_h=no
> make
> make check

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