Package: debconf Version: 1.5.60 Severity: important User: debian-p...@lists.debian.org Usertags: perl-5.24-transition perl-5.26-transition bcn2017
Debconf::TmpFile uses POSIX::tmpnam(), which was deprecated in Perl 5.24: % perl -MPOSIX -e 'POSIX::tmpnam()' Calling POSIX::tmpnam() is deprecated at -e line 1. It is removed totally in Perl 5.26 (currently in experimental, targeted for buster): Unimplemented: POSIX::tmpnam(): use File::Temp instead at -e line 1. I've confirmed that debconf crashes with this on Perl 5.26 when dpkg-reconfiguring console-setup on a small enough terminal that the textboxes need scrolling. It only happens with the dialog frontend, not whiptail. The 5.24 deprecation warning is not visible to the user at least with the dialog frontend, so this has gone unnoticed until now. While harmless now, if this goes into stretch, it has implications for stretch -> buster upgrades: debconf will then need to be upgraded strictly before perl-base, probably by making perl-base Break (or even Conflict with?) older debconf versions. It would be nice if we could avoid this, so a fix for stretch would be appreciated. Anything using File::Temp that works on 5.24 should do. OTOH Ubuntu has already released with this issue so we may want to do the Breaks/Conflict thing to help their upgrades anyway? Feel free to downgrade the severity if it seems inflated. Greetings for the Debian Perl Sprint in Lloret de Mar, -- Niko Tyni nt...@debian.org