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Date: Thu, 7 Apr 2016 09:53:36 -0400
From: Rich Felker <dalias@...c.org>
To: Masanori Ogino <masanori.ogino@...il.com>, musl@...ts.openwall.com,
bug-gnu-gettext@....org
Subject: Re: Re: [bug-gettext] AM_GNU_GETTEXT without referring
internal symbols?
On Thu, Apr 07, 2016 at 12:57:47PM +0200, Szabolcs Nagy wrote:
> * Masanori Ogino <masanori.ogino@...il.com> [2016-04-07 16:12:39 +0900]:
> > 2016-04-07 15:26 GMT+09:00 Rich Felker <dalias@...c.org>:
> > > I'm not sure what the %Id thing you're referring to is; can you point
> > > me to a description of it?
> >
> > %Id is essentially an extension of printf(3) in glibc 2.2 and later.
> > It can be implemented by the same way as how sysdep is implemented; it
> > just depends on the current locale, not the ABI.
> >
> > Search http://man7.org/linux/man-pages/man3/sprintf.3.html by "glibc
> > 2.2 adds" for details.
>
> i think it is not acceptable that glibc introduces
> extensions that can collide with future versions of
> the c and posix standards.
>
> but it is even worse if a translation file format
> depends on such extensions which makes it hard to
> fix the problem once the collision happens
> (like it happened with scanf %a).
>
> there are other problems with this flag, so gettext
> manual should recommend some other solution.
In that case this has nothing to do with gettext capabilities; gettext
does not process format strings but simply translates one format
strign to another, and if a program is using non-portable format
strings, it's going to break whether it's using gettext or not. So I
don't think it's relevant to this discussion of whether _gettext_ is
compatible.
Rich
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