Bug#851892: To tight permissions on /dev/ptmx

[Guido Günther]

Package: cowbuilder
Version: 0.83
Severity: normal

Hi,
libvirt builds started fo fail recently for me due to gnulib tests that
access /dev/ptmx failing. The reason is:

   $ ls -l /dev/pts/ptmx
   c--------- 1 root root 5, 2 Jan 19 14:16 /dev/pts/ptmx

when invokint pbuilder like

   pdebuild --pbuilder cowbuilder

This changed somewhen mid January. Can /dev/pts/ptmx be made 0666 again?
Cheers,
 -- Guido

-- System Information:
Debian Release: 9.0
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable-debug'), (500, 'testing-debug'), (500, 'stable-updates'), (500, 'unstable'), (500, 'stable'), (500, 'oldstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.9.0-rc8-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages cowbuilder depends on:
ii  cowdancer    0.83
ii  libc6        2.24-8
ii  libncurses5  6.0+20161126-1
ii  libtinfo5    6.0+20161126-1
ii  pbuilder     0.227

cowbuilder recommends no packages.

cowbuilder suggests no packages.

-- no debconf information