$ sudo aptitude purge libxine-dev
Reading package lists... Done
Building dependency tree... Done
Reading extended state information
Initializing package states... Done
Reading task descriptions... Done
The following packages are unused and will be REMOVED:
  libslang2-dev
The following packages will be REMOVED:
  libxine-dev
0 packages upgraded, 0 newly installed, 2 to remove and 0 not upgraded.
Need to get 0B of archives. After unpacking 1648kB will be freed.
Do you want to continue? [Y/n/?]
Writing extended state information... Done
Traceback (most recent call last):
  File "/usr/bin/apt-listchanges", line 35, in ?
    import apt_listchanges
  File "/usr/lib/site-python/apt_listchanges.py", line 24, in ?
    locale.setlocale(locale.LC_ALL,'')
  File "/usr/lib/python2.3/locale.py", line 381, in setlocale
    return _setlocale(category, locale)
locale.Error: unsupported locale setting
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
        LANGUAGE = "en_US:en_GB:en",
        LC_ALL = (unset),
        LANG = "en_US:en_GB:en"
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
(Reading database ... 91117 files and directories currently installed.)
Removing libxine-dev ...
(Reading database ... 91068 files and directories currently installed.)
Removing libslang2-dev ...
Reading package lists... Done
Building dependency tree... Done
Reading extended state information
Initializing package states... Done
Reading task descriptions... Done