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.\" which-pkg-broke.1 - find which package might have broken another
.\" Copyright (C) 2006 Javier Fernandez-Sanguino
.\" This program is free software; you can redistribute it and/or modify
.\" it under the terms of the GNU General Public License as published by
.\" the Free Software Foundation; either version 2, or (at your option)
.\" any later version.
.\" On Debian systems, a copy of the GNU General Public License version 2
.\" can be found in /usr/share/common-licenses/GPL-2.
.TH which-pkg-broke 1 "July 24 2006" "debian\-goodies" "debian\-goodies"
which-pkg-broke \- find which package might have broken another
.B which-pkg-broke
.RI package
.B which-pkg-broke
program will retrieve a list of the named package and all its dependencies
sorted by the time they were installed on the system (as determined
from the mtime information of
.B /var/lib/dpkg/info/*.list

This tool makes it possible for a system admin to obtain information that might
correlate installation of package dependencies with a package breakage in order
to find which package update might be responsible for the breakage.

This tool can be useful determine which package dependencies were upgraded
more recently and might be associated with the bug that is being observed.
For example, if aptitude stops working properly, an administrator can run:

\fB$ which-pkg-broke aptitude\fP
Package <libapt-pkg-libc6.3-5-3.3> has no install time info
libdb1-compat                    Fri Aug  8 03:02:11 2003
libsigc++-1.2-5c102              Fri Aug  8 05:15:58 2003
aptitude                         Sun Jan 11 17:38:06 2004
libncurses5                      Sun Jan 18 08:11:05 2004
libc6                            Thu Jan 22 07:55:10 2004
libgcc1                          Tue Jan 27 07:37:22 2004
gcc-3.3-base                     Tue Jan 27 07:37:31 2004
libstdc++5                       Tue Jan 27 07:37:32 2004

So depending on exactly when the misbehaviour started, there may be a reason to
point the finger at a more-recently updated library like \fBlibstdc++\fP or
\fBlibncurses\fP, which are more-recently installed than
aptitude itself.

.BR rc\-alert (1)

.B which-pkg-broke
was written by Bill Gribble <grib AT>

This manual page was written by Javier Fernandez-Sanguino for the Debian
GNU/Linux distribution.