Re: xfstests can't be installed by running make install

[Zorro Lang]

On Tue, Jul 17, 2018 at 10:15:47PM +0200, Florian Weimer wrote:
> * Eryu Guan:
> 
> > This problem here doesn't seem the same as the bug above, Fedora 28 has
> > glibc-2.27, which contains the fix for above bug, and the bug is about
> > trailing "/". But the problem here is we're asking for all lower case
> > filenames but wildcard returns upper case names too. e.g.
> >
> > address@hidden tmp]# pwd
> > /root/tmp
> > address@hidden tmp]# ls -l
> > total 4
> > -rw-r--r--. 1 root root   0 Jul 17 10:51 aaa
> > -rw-r--r--. 1 root root   0 Jul 17 10:51 AAA
> > -rw-r--r--. 1 root root 273 Jul 17 10:50 Makefile
> > drwxr-xr-x. 1 root root   0 Jul 15 14:59 testdir
> > address@hidden tmp]# cat Makefile
> > STRING1 = $(wildcard $(CURDIR)/[a-z]*/)
> > STRING2 = $(wildcard ./[a-z]*/)
> > STRING3 = $(wildcard $(CURDIR)/[a-z]*/.)
> > STRING4 = $(wildcard $(CURDIR)/[a-z]*)
> > default:
> >         @echo STRING1="$(STRING1)"
> >         @echo STRING2="$(STRING2)"
> >         @echo STRING3="$(STRING3)"
> >         @echo STRING4="$(STRING4)"
> > address@hidden tmp]# make
> > STRING1=/root/tmp/aaa /root/tmp/AAA /root/tmp/testdir/ /root/tmp/Makefile
> > STRING2=./aaa ./AAA ./testdir/ ./Makefile
> > STRING3=/root/tmp/testdir/.
> > STRING4=/root/tmp/aaa /root/tmp/AAA /root/tmp/testdir /root/tmp/Makefile
> > address@hidden tmp]#
> >
> > STRING4 is asking for all lower file names, but both "AAA" and
> > "Makefile" are returned.
> 
> This is related to this glibc bug:
> 
>   https://sourceware.org/bugzilla/show_bug.cgi?id=23393
> 
> The bug mentions the regular expression [0-9], but it also affects
> patterns like [a-z].  I have not yet looked at fnmatch and glob in
> detail, but based on the report here (and a quick test with “echo
> [a-z]*”), they are affected by the same issue.
> 
> This is ultimately caused by a locale data update which was backported
> into Fedora 28 (glibc 2.27) and its derivatives.  Upstream glibc only
> has this change for version 2.28 (not yet released).  It's currently
> not considered a release blocker, if it's even considered a bug at
> all.
> 
> I dimly recall earlier discussions regarding this matter quite some
> time ago, perhaps in the POSIX context.  GNU grep appears to have a
> workaround for [0-9], but not [a-z].  Cc:ing Jim Meyering in case he
> has any insights.

JFYI:

I reported this bug to glibc bugzilla too, and I got some responses
as below:
https://sourceware.org/bugzilla/show_bug.cgi?id=23420#c1

Hmm... is Fedora glibc much different with upstream ... Need more
investigate.

Thanks,
Zorro

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