Bug#926878: unblock: exim4/4.92-5

[Andreas Metzler]

Package: release.debian.org
Severity: normal
User: release.debian.org at packages.debian.org
Usertags: unblock

Please unblock package exim4:

In the first place it pulls multiple upgrades from upstream's
exim-4.92+fixes branch where important post-release fixes are published.

The second notable change is related to sa-exim. Exim in Debian was
patched to allow dlopening a localscan() module. The single consumer of
this patch in Debian is sa-exim. (The patch also originates there.)

The patch in Debian has been nonfunctional in unstable for quite some
time (4.92~RC2-1/experimental/18 Dec, 4.92~RC3-1 unstable/26 Dec and
buster/03 Jan). The issue only popped up end of March on the upstream
user support ML.

Looking at the state of sa-exim (dead upstream since 2006 and buggy: 
https://lists.exim.org/lurker/message/20180726.113354.6d03efde.en.html
#879687) we have decided stop patching exim, which resulted in 4.92-5,
which
- improves the example/docs for content-scanning in exim without sa-exim
- drops the abovementioned patch and the virtual Provides for
  exim4-localscanapi-2.0 and also drops the exim-dev packages (only
  needed for sa-exim). Exim now also Conflicts with sa-exim.

unblock exim4/4.92-5

cu Andreas
-- 
`What a good friend you are to him, Dr. Maturin. His other friends are
so grateful to you.'
`I sew his ears on from time to time, sure'
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