Regression: Incorrect wcwidth

[Egmont Koblinger]

Just before entering Xenial's Final Beta Freeze, glibc was updated from 2.21 to 2.23.

2.22 brings in a regression around wcwidth(), causing incorrect behavior of certain apps when printing certain characters in various terminal emulators.

Upstream glibc bug: https://sourceware.org/bugzilla/show_bug.cgi?id=19852

Original report about incorrect behavior in terminal: https://bugzilla.gnome.org/show_bug.cgi?id=762052

Could you please fix this regression?

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: libc6 2.23-0ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-14.30-generic 4.4.5
Uname: Linux 4.4.0-14-generic x86_64
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Mar 22 10:13:34 2016
Dependencies:
 gcc-6-base 6-20160319-0ubuntu1
 libc6 2.23-0ubuntu1
 libgcc1 1:6-20160319-0ubuntu1
InstallationDate: Installed on 2012-05-30 (1391 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
SourcePackage: glibc
UpgradeStatus: Upgraded to xenial on 2016-02-13 (37 days ago)