Bug#924657: Buggy gettext() after switching locale (#924657)
On Sun, Mar 31, 2019 at 01:56:15PM +0200, intrigeri wrote:
> >From Iain's report I understand that since Perl 5.28, gettext() calls
> are cached, so after switching the locale, in order to get correct
> results, one needs to invalidate the cache somehow, e.g. by calling
> bindtextdomain() and then textdomain().
FWIW I looked into this a bit, and indeed glibc has a cache of
already loaded translations that gets invalidated (by incrementing
_nl_msg_cat_cntr) in setlocale(3), bindtextdomain(3) and textdomain(3)
but not uselocale(3).
Starting with Perl 5.28, Perl uses POSIX 2008 thread-safe locales, so
it calls uselocale(3) underneath when the Perl side POSIX::setlocale()
function is invoked.
The proposed fix/workaround seems fine to me, though I wonder if glibc
should invalidate the cache in uselocale(3) as well. Copying the
glibc maintainers. Any opinion on this?
--
Niko Tyni ntyni@debian.org
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