Bug#887886: libc6 from experimental makes vlc crash (even after rebuilding from source)

[Eric Valette <eric.valette@free.fr>]

Package: libc6
Version: 2.26.9000+20180108.401311cf-0experimental0
Severity: critical
Justification: breaks unrelated software

launching vlc crash immediately with sigsegv. Downgrading to unstable makes
it work again.

-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.14.14 (SMP w/8 CPU cores; PREEMPT)
Locale: LANG=fr_FR.UTF8, LC_CTYPE=fr_FR.UTF8 (charmap=UTF-8), LANGUAGE= (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages libc6 depends on:
ii  libgcc1  1:7.2.0-19

libc6 recommends no packages.

Versions of packages libc6 suggests:
ii  debconf [debconf-2.0]  1.5.65
ii  glibc-doc              2.26.9000+20180108.401311cf-0experimental0
ii  libc-l10n              2.26.9000+20180108.401311cf-0experimental0
ii  locales                2.26-4

-- debconf information:
  glibc/restart-failed:
  glibc/kernel-not-supported:
* libraries/restart-without-asking: true
* glibc/upgrade: true
* glibc/disable-screensaver:
  glibc/kernel-too-old:
  glibc/restart-services: