Bug#198676: gtk-doc-tools: fails to install

[Jerome Warnier <jwarnier@relay.chello.be>]

Package: gtk-doc-tools
Version: 1.0-6 (not installed)
Severity: normal

When I try to install it, I get:
Setting up gtk-doc-tools (1.0-6) ...
install/gtk-doc-tools: Handling install for emacsen flavor emacs20
IO error reading /usr/share/emacs/site-lisp/subdirs.el: Invalid argument
emacs-package-install:
/usr/lib/emacsen-common/packages/install/gtk-doc-tools emacs20 emacs20
failed at /usr/lib/emacsen-common/emacs-package-install line 30, <TSORT>
line 1.
dpkg: error processing gtk-doc-tools (--configure):
 subprocess post-installation script returned error exit status 29
 Errors were encountered while processing:
  gtk-doc-tools


I don't understand what's the problem as I am not a great Emacs guru.

Regards

-- System Information:
Debian Release: testing/unstable
Architecture: i386
Kernel: Linux josse 2.4.20-1-686 #1 Sat Mar 22 13:16:21 EST 2003 i686
Locale: LANG=C, LC_CTYPE=C