Since Handbrake can't be installed in Oneiric, I decided to try and build it from source instead. The build is interrupted because it complains glib is not installed, so I thought I better install the glib development package. But I cant:

$ sudo aptitude install -V libglib2.0-dev

The following NEW packages will be installed:

  libglib2.0-dev{b} [2.30.0-0ubuntu4]  

0 packages upgraded, 1 newly installed, 0 to remove and 0 not upgraded.

Need to get 1 775 kB of archives. After unpacking 8 831 kB will be used.

The following packages have unmet dependencies:

  libglib2.0-dev: Depends: libglib2.0-0 (= 2.30.0-0ubuntu4) but 2.31.0-0ubuntu1~oneiric1 is installed.

                  Depends: libglib2.0-bin (= 2.30.0-0ubuntu4) but 2.31.0-0ubuntu1~oneiric1 is installed.

Internal error: the solver Install(libglib2.0-bin 2.30.0-0ubuntu4 <libglib2.0-dev 2.30.0-0ubuntu4 -> {libglib2.0-bin 2.30.0-0ubuntu4 libglib2.0-bin 2.30.0-0ubuntu4}>) of a supposedly unresolved dependency is already installed in step 237

Aptitude the suggest a solution that involves removing basically all libraries, including libc.

How do I install the glib development package?

Edit

$ apt-cache policy libglib2.0-0

libglib2.0-0:

  Installed: 2.31.0-0ubuntu1~oneiric1

  Candidate: 2.31.0-0ubuntu1~oneiric1

  Version table:

 *** 2.31.0-0ubuntu1~oneiric1 0

        100 /var/lib/dpkg/status

     2.30.0-0ubuntu4 0

        500 http://se.archive.ubuntu.com/ubuntu/ oneiric/main amd64 Packages