Bug#770193: libglib2.0-0: Failing to compile package libglibc (importing a unstable package on a testing system)

[Pietro]

Package: libglib2.0-0
Version: 2.42.0-2
Severity: serious
Justification: fails to build from source (but built successfully in the past)

Dear Maintainer,

*** Reporter, please consider answering these questions, where appropriate ***

   * What led up to the situation?
   * What exactly did you do (or not do) that was effective (or
     ineffective)?
   * What was the outcome of this action?
   * What outcome did you expect instead?

*** End of the template - remove these template lines ***
I am running a testing debian system and I would like to upgrade the libglib2.0-0 to the latest from the unstable repo. following the 
guide (https://wiki.debian.org/DebianUnstable#Can_I_use_sid_packages_on_testing.3F) I have performed the follwing steps:

1 - sudo apt-get build-dep libglib2.0-0 
2 - sudo apt-get -b source libglib2.0-0

The compilation gets stuck here and never finishes, my expectation was
to be able to install the resulting package with dpkg -i.
[...]
PASS: gsettings 21 /gsettings/writable-binding
PASS: gsettings 22 /gsettings/typesafe-binding
PASS: gsettings 23 /gsettings/no-read-binding
[ never exits ]

The sources.list file used :
deb http://ftp.uk.debian.org/debian testing main contrib non-free
deb-src http://ftp.uk.debian.org/debian testing main contrib non-free

deb http://ftp.uk.debian.org/debian unstable main contrib non-free
deb-src http://ftp.uk.debian.org/debian unstable main contrib non-free

deb http://ftp.debian.org/debian/ jessie-updates main contrib non-free
deb-src http://ftp.debian.org/debian/ jessie-updates main contrib
non-free

deb http://security.debian.org/ jessie/updates main contrib non-free
deb-src http://security.debian.org/ jessie/updates main contrib non-free



-- System Information:
Debian Release: jessie/sid
  APT prefers testing-updates
  APT policy: (500, 'testing-updates'), (500, 'unstable'), (500, 'testing')
Architecture: i386 (i686)

Kernel: Linux 3.13-1-686-pae (SMP w/8 CPU cores)
Locale: LANG=en_GB.utf8, LC_CTYPE=en_GB.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages libglib2.0-0 depends on:
ii  libc6              2.19-13
ii  libffi6            3.1-2
ii  libpcre3           1:8.35-3.1
ii  libselinux1        2.3-2
ii  multiarch-support  2.19-13
ii  zlib1g             1:1.2.8.dfsg-2

Versions of packages libglib2.0-0 recommends:
ii  libglib2.0-data   2.42.0-2
ii  shared-mime-info  1.3-1
ii  xdg-user-dirs     0.15-2

libglib2.0-0 suggests no packages.

-- no debconf information