Bug#258730: scrollkeeper can be run several times at once

[Jerome Warnier]

Package: scrollkeeper
Version: 0.3.14-8
Severity: normal

I did an upgrade of scrollkeeper (Woody to Sarge) and had
scrollkeeper-update started at the same time a scrollkeeper-rebuilddb
was running from cron. I eventually had to kill scrollkeeper-update to let
scrollkeeper-rebuilddb finish his job.

I believe scrollkeeper-* should notice it is already running, and
should disallow or postpone.

Thanks

-- System Information:
Debian Release: testing/unstable
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.6.6-1-686
Locale: LANG=C, LC_CTYPE=C

Versions of packages scrollkeeper depends on:
ii  docbook-xml                 4.3-1        standard XML documentation system,
ii  libc6                       2.3.2.ds1-13 GNU C Library: Shared libraries an
ii  libscrollkeeper0            0.3.14-8     Library to load .omf files (runtim
ii  libxml2                     2.6.10-3     GNOME XML library
ii  libxslt1.1                  1.1.7-1      XSLT processing library - runtime 
ii  zlib1g                      1:1.2.1.1-3  compression library - runtime

-- no debconf information