Bug#871469: transition: ocaml

[Stéphane Glondu <glondu@debian.org>]

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

Dear release team,

We would like to update ocaml from 4.02.3 to 4.05.0. This is 3 major
releases (and 2 years) ahead.

With current unstable, on amd64:
- 9 source uploads (at least) are needed
- 222 packages rebuild fine with no changes
- 22 packages FTBFS with the new version
- 18 packages cannot be rebuilt because one of their b-deps FTBFS

Among the latter 40 packages, 32 are in testing. Bug reports have been
submitted for some of them [1] and patches are available. The
remaining ones are pretty self-contained (no external reverse
dependencies) and can be removed from testing if they get in the
way. I've put details at [2].

ocaml 4.05.0 and a few selected packages have been uploaded to
experimental and build fine on all architectures [3].

[1] https://bugs.debian.org/cgi-bin/pkgreport.cgi?tag=ocaml-4.05.0-transition;users=debian-ocaml-maint@lists.debian.org
[2] http://ocaml.debian.net/debian/ocaml-4.05.0%2Brc1/
[3] https://buildd.debian.org/status/package.php?p=ocaml%2Ccamlp4%2Cfindlib%2Cocamlbuild&suite=experimental&compact=compact

So, basically, this transition is ready to be started from my point of
view.

I will take care of the necessary binNMUs.

Ben file:

title = "ocaml";
is_affected = .depends ~ /ocaml(-base)?(-nox)?-4.02.3/ | .depends ~ /ocaml(-base)?(-nox)?-4.05.0/;
is_good = .depends ~ /ocaml(-base)?(-nox)?-4.05.0/;
is_bad = .depends ~ /ocaml(-base)?(-nox)?-4.02.3/;


Cheers,

-- 
Stéphane

-- System Information:
Debian Release: buster/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.11.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=fr_FR.utf8, LC_CTYPE=fr_FR.utf8 (charmap=UTF-8), LANGUAGE=fr_FR.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)