Bug#1065217: libpetsc-complex3.19-dev fails to install

[Adrian Bunk]

Package: libpetsc-complex3.19-dev
Version: 3.19.6+dfsg1-2.1
Severity: serious
Tags: ftbfs
X-Debbugs-Cc: Benjamin Drung <bdrung at debian.org>, Steve Langasek <vorlon at debian.org>
Control: affects -1 src:slepc

https://buildd.debian.org/status/fetch.php?pkg=slepc&arch=amd64&ver=3.19.2%2Bdfsg1-2.1&stamp=1709337662&raw=0

...
Setting up libpetsc-complex3.19-dev:amd64 (3.19.6+dfsg1-2.1) ...
update-alternatives: error: no alternatives for petsc
update-alternatives: error: alternative path /usr/lib/petscdir/petsc3.19t64/x86_64-linux-gnu-complex doesn't exist
dpkg: error processing package libpetsc-complex3.19-dev:amd64 (--configure):
 installed libpetsc-complex3.19-dev:amd64 package post-installation script subprocess returned error exit status 2
...