[Bug 1187507] Re: (open)motif should properly transition from libmotif3

[Dmitry Shachnev]

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https://bugs.launchpad.net/bugs/1187507

Title:
  (open)motif should properly transition from libmotif3

Status in “motif” package in Ubuntu:
  Fix Released
Status in “openmotif” source package in Precise:
  In Progress
Status in “openmotif” source package in Quantal:
  In Progress
Status in “openmotif” source package in Raring:
  In Progress
Status in “motif” package in Debian:
  Fix Released

Bug description:
  [SRU] The debdiffs attached to this bug provide a libmotif3 virtual
  package to properly transition from the libmotif3 package still
  present in Lucid to the new libmotif4 packages in Precise, Quantal and
  Raring.  For Precise and Quantal, LP: #1187534 is fixed as well.

  [IMPACT] According to the whole archive statistics in Ubuntu's PopCon
  [1], it appears there are still a significant number of libmotif3
  installations.  Surprisingly, more than six times more than the number
  of libmotif4 installations.

  #rank name                            inst  vote   old recent no-files (maintainer)
  8636  libmotif3                      25238    45 18260     4  6929 (Debian Qa Group)
  18967 libmotif4                       3683   115  3264    75   229 (Unknown)

  I believe this may be due to the number of proprietary packages that need libXm.so.3.
  Searching for 'install libmotif3' returns a number of guides on installing some of these packages on Debian and Ubuntu, as well as guides on how to install libmotif3 from previous releases.
  Since openmotif 2.3.3-5ubuntu2 in Quantal and 2.3.3-5ubuntu1.12.04.1 in Precise (LP: #818220), libmotif4 has provided symlinks for libXm.so.3 and the other libmotif3 libraries, but did not provide a libmotif3 transitional package and thus libmotif3 was never properly transitioned to libmotif4.

  From the Open Motif 2.3.3 release notes [2]:

  6. Compatibility Notice

  Open Motif 2.3.x is binary compatible with Open Motif 2.2.x.
  Applications built against Open Motif 2.2 should work with Open Motif 2.3.x
  without having to recompile it.

  Open Motif 2.3.x is not binary compatible with Open Motif 2.1.30.
  Applications built against Open Motif 2.1.30 will need to be recompiled
  with the Open Motif 2.2+ header files.

  See comment #6 for what's new and changelog since openmotif 2.2.3-4 in
  Lucid.

  [Test Case]
  Install libmotif3 from Lucid and the test cases from comment #4 of LP: #1026640 and verify that Xmtest-libmotif3-<arch> runs.  Then run a dist-upgrade and verify that libmotif3 is upgraded and libmotif4 is installed cleanly.  Finally, verify that both Xmtest-libmotif3-<arch> and Xmtest-libmotif4-<arch> both run.
  $ wget http://archive.ubuntu.com/ubuntu/pool/multiverse/o/openmotif/libmotif3_2.2.3-4_amd64.deb
  $ sudo dpkg -i libmotif3_2.2.3-4_amd64.deb
  $ ./Xmtest-libmotif3-amd64
  $ sudo apt-get update
  $ sudo apt-get dist-upgrade
  Reading package lists... Done
  Building dependency tree
  Reading state information... Done
  Calculating upgrade... Done
  The following NEW packages will be installed:
    libmotif4
  The following packages will be upgraded:
    libmotif3
  1 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
  ...
  $ ./Xmtest-libmotif3-amd64
  $ ./Xmtest-libmotif4-amd64

  As libmotif4 is multi-arch, the tests should be repeated for i386, i.e.
  $ wget http://archive.ubuntu.com/ubuntu/pool/multiverse/o/openmotif/libmotif3_2.2.3-4_i386.deb
  $ sudo dpkg -i libmotif3_2.2.3-4_i386.deb
  And so on, as above.

  [Regression Potential]
  Minimal: the fix only affects packaging, however the large number of users with libmotif3 installed are going to be offered an unexpected upgrade.
  New bugs may have been introduced in openmotif 2.3.3, but libmotif3 compatibility has been in Ubuntu for some months now and there have been no bugs reported.
  Should libmotif3 users be affected, they can revert to libmotif3 from Lucid until such time as a fix is released, or until they are upgraded to motif 2.3.4 available in Saucy.

  [1] http://popcon.ubuntu.com/
  [2] http://motif.ics.com/open-motif-233-release-notes

  ---------------------------------------------------------------------------------------

  The fix has been released in motif 2.3.4-4 in Debian and is currently
  in the Binary NEW queue due to the new libmotif3 transitional package.
  It is expected to land in Saucy within a week or so.

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