[Cupt-devel] Bug#772558: libcupt3-0: "why" chooses irrelevant dependency

[James McCoy]

Package: libcupt3-0
Version: 2.8.4
Severity: minor

During today's upgrade I noticed install-info was going to be upgraded
and I remembered that package was pretty much unneeded in most cases.  I
decided to check whether that was the case on my system:

cupt> why install-info
cgdb 0.6.7-2^installed: Depends: dpkg (>= 1.15.4) | install-info
cupt> purge install-info
Building the package cache... 
Initializing package resolver and worker... 
Scheduling requested actions... 
Resolving possible unmet dependencies... 

The following packages will be purged:

info install-info(a) 

Action summary:
  1 manually installed and 1 automatically installed packages will be purged

Need to get 0B/0B of archives. After unpacking 615KiB will be freed.
Do you want to continue? [y/N/q/a/rc/?] q
Abandoned or no more solutions.

Since info has a direct Depends relationship on install-info, I would
expect that to be reported rather than the alternative relationship that
cgdb has, especially since cgdb's primary alternative (dpkg >= 1.15.4) is
satisfied.

-- System Information:
Debian Release: 8.0
  APT prefers unstable
  APT policy: (500, 'unstable'), (200, 'experimental')
Architecture: i386 (i686)

Kernel: Linux 3.16.0-4-586
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages libcupt3-0 depends on:
ii  libc6           2.19-13
ii  libcupt-common  2.8.4
ii  libgcc1         1:4.9.2-5
ii  libgcrypt20     1.6.2-4+b1
ii  libstdc++6      4.9.2-5

Versions of packages libcupt3-0 recommends:
ii  bzip2                           1.0.6-7+b1
ii  ed                              1.10-2
ii  gpgv                            1.4.18-6
ii  libcupt3-0-downloadmethod-curl  2.8.4

Versions of packages libcupt3-0 suggests:
ii  cupt             2.8.4
pn  debdelta         <none>
ii  dpkg-dev         1.17.22
pn  dpkg-repack      <none>
ii  xz-utils [lzma]  5.1.1alpha+20120614-2+b2

-- no debconf information