Bug#795125: transition: libassimp3 -> libassimp3v5

[IOhannes m zmoelnig <umlaeute@debian.org>]

Package: release.debian.org
Severity: normal
User: release.debian.org@packages.debian.org
Usertags: transition

Due to the gcc-5 transition, the "libassimp3" package from "assimp" has changed
exported symbols and has been renamed to "libassimp3v5".
The SONAME has *not* changed.

I have uploaded "assimp_3.1.1~dfsg-4" to "experimental".
So far the package has built on all architectures already in testing, except for
armel/armhf/mips/mipsel which are still waiting for a buildd to be assigned.
I'm sure that those builds will succeed as well :-)

There are currently 2 packages in Debian that have listed libassimp-dev as
build-dependency, so they need to be rebuilt:
- mrpt
- doomsday

I have built both reverse-dependencies, with the following result:

- "doomsday" builds fine.

- "mrpt" FTBFS with the following error:
    ../../lib/libmrpt-vision.so.1.3.1: undefined reference to `cv::Algorithm::_create(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
this looks very much like an unrelated issue (hinting that libopencv needs to
transition to libopencv*v5 as well).
a quick "rgrep -i assimp ." indicates, that assimp is used in the following
modules of mrpt:
 - apps/SceneViewer3D
 - libs/maps
 - libs/nav
 - libs/opengl
 - libs/slam
i've build all of them manually, and they built fine.
so i think that 'mrpt' is also ready for the libassimp3v5 transition (though it
is blocked by a potential libopencv*v4 transition)


In terms of 'ben' lingo, I think that the transition has the following parameters:

title = "assimp";
is_affected = .depends ~ "libassimp3" | .depends ~ "libassimp3v5";
is_good = .depends ~ "libassimp3v5";
is_bad = .depends ~ "libassimp3";

Please schedule binNMUs for the above mentioned packages on all architectures.

gfmards
IOhannes


-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.0.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)