Bug#1121561: libc++-19-dev: breaks libc++1-19, not just libc++1

[Andres Salomon]

Control: severity -1 serious

FYI, this bug should be higher priority. I hit it as well.


On Fri, 28 Nov 2025 16:06:39 +0100 Marc Glisse 
<marc.glisse at normalesup.org> wrote:
> Package: libc++-19-dev
> Version: 1:19.1.7-10.1
> Severity: normal
> 
> Dear Maintainer,
> 
> during today's apt full-upgrade, I got
> 
> Preparing to unpack .../libc++-19-dev_1%3a19.1.7-18_amd64.deb ...
> Unpacking libc++-19-dev (1:19.1.7-18) over (1:19.1.7-10.1) ...
> dpkg: error processing archive /var/cache/apt/archives/libc++-19-dev_1%3a19.1.7-18_amd64.deb (--unpack):
>  trying to overwrite '/usr/lib/llvm-19/lib/libc++.so.1', which is also in package libc++1-19 (1:19.1.7-10.1)
> Errors were encountered while processing:
>  /var/cache/apt/archives/libc++-19-dev_1%3a19.1.7-18_amd64.deb
> Error: Sub-process /usr/bin/dpkg returned an error code (1)
>