Release 2.12.5-1

See merge request !24

Note: The release builds for this security update were prepared in a private
fork before publishing the release and were uploaded from there:
https://git.icinga.com/packaging/icinga2-2.12.5-2.11.10/raspbian-icinga2

Right now, LTO is disabled for RPM builds in general. The block removed by this
commit is no longer in use (the lto_build condition has no effect at the
moment). Therefore remove it to be consistent with the master branch.

Alexander A. Klimov authored 4 years ago and Julian Brost committed 3 years ago

... to avoid OOM. E.g.:

as: out of memory allocating 4064 bytes after a total of 396447744 bytes

Drop Fedora 31

See merge request !11

Drop Fedora 30

See merge request !10

Drop CentOS 6

See merge request !16

Drop Fedora 29

See merge request !9

Drop openSUSE 15.0

See merge request !12

Drop SLES 12.4

See merge request !13

Drop SLES 15.0

See merge request !14

Add support for SLES 12 SP 5

See merge request !1