Bug#1143973: cyrus-imapd: autopkgtest needs update for new version of gcc-defaults

On 2026/08/09 08:49, Paul Gevers wrote:
> Source: cyrus-imapd
> Version: 3.12.3-2
 >
> With a recent upload of gcc-defaults the autopkgtest of cyrus-imapd 
> fails in testing when that autopkgtest is run with the binary packages 
> of gcc-defaults from unstable. It passes when run with only packages 
> from testing. 

Hello Paul,

Not a member of the Cyrus team, but I looked into this. Only 
`autopkgtest` was affected. The build is fine, because `dh_autoreconf` 
regenerates `configure` with autoconf 2.73, while 
`debian/tests/unit-test` bypassed the dh sequencer and used the 
autoconf-2.71 configure from the tarball, which still forces 
`-std=gnu++11` under g++-16 (cf. bug #1133694). ICU's headers then fail, 
as they need C++17.

MR: https://salsa.debian.org/debian/cyrus-imapd/-/merge_requests/25

The Debian Cyrus Team and the gcc-defaults maintainers would be the best 
judges regarding adding `Breaks`.

Kind regards,

     Edmund Lodewijks