Bug#390893: apache2-common pre-removal script error ("undefined symbol: apr_get_userid")

[Tom <tom@abwaerts.be>]

Package: apache2-common
Version: 2.0.55-4.2
Severity: grave
Justification: renders package unusable

Hey ho,

Removing apache2-common ...
Stopping apache 2.0 web server...apache2:
   Syntax error on line 116 of /etc/apache2/apache2.conf:
   Syntax error on line 1 of /etc/apache2/mods-enabled/userdir.load:
   Cannot load /usr/lib/apache2/modules/mod_userdir.so into server:
   /usr/lib/apache2/modules/mod_userdir.so: undefined symbol: apr_get_userid
 failed!
invoke-rc.d: initscript apache2, action "stop" failed.
dpkg: error processing apache2-common (--remove):
 subprocess pre-removal script returned error exit status 1
Errors were encountered while processing:
 apache2-common
E: Sub-process /usr/bin/dpkg returned an error code (1)

In bug 390789 [1], someone reported a slightly similar problem (although
that concerned another undefined symbol), but apparently that user "worked
around that easily enough". Sadly, I am unable to do so, so I hope this
report is justified.

Cheers,
Tom

[1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=390789


-- System Information:
Debian Release: testing/unstable
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.17-2-686
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)

Versions of packages apache2-common depends on:
ii  apache2-utils                2.0.55-4.2  utility programs for webservers
ii  debconf                      1.5.5       Debian configuration management sy
ii  debianutils                  2.17.3      Miscellaneous utilities specific t
ii  libc6                        2.3.6.ds1-5 GNU C Library: Shared libraries
ii  libdb4.4                     4.4.20-8    Berkeley v4.4 Database Libraries [
ii  libexpat1                    1.95.8-3.3  XML parsing C library - runtime li
ii  libgcc1                      1:4.1.1-15  GCC support library
ii  libmagic1                    4.17-4      File type determination library us
ii  lsb-base                     3.1-17      Linux Standard Base 3.1 init scrip
ii  mime-support                 3.37-1      MIME files 'mime.types' & 'mailcap
ii  net-tools                    1.60-17     The NET-3 networking toolkit
ii  openssl                      0.9.8c-2    Secure Socket Layer (SSL) binary a
ii  ssl-cert                     1.0.13      Simple debconf wrapper for openssl

apache2-common recommends no packages.

-- no debconf information