[Debian-astro-maintainers] Bug#956694: sopt FTBFS with spdlog 1.5.0

[Adrian Bunk]

Source: sopt
Version: 3.0.1-10
Severity: serious
Tags: ftbfs

https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/sopt.html

...
cd /build/1st/sopt-3.0.1/obj-x86_64-linux-gnu/cpp/sopt && /usr/bin/c++  -Dsopt_EXPORTS -I/build/1st/sopt-3.0.1/cpp/sopt/.. -I/build/1st/sopt-3.0.1/obj-x86_64-linux-gnu/include -isystem /usr/include/eigen3 -isystem /usr/lib/x86_64-linux-gnu/openmpi/include/openmpi -isystem /usr/lib/x86_64-linux-gnu/openmpi/include  -g -O2 -ffile-prefix-map=/build/1st/sopt-3.0.1=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2  -std=gnu++11 -fPIC   -fopenmp -o CMakeFiles/sopt.dir/wavelets/sara.cc.o -c /build/1st/sopt-3.0.1/cpp/sopt/wavelets/sara.cc
In file included from /build/1st/sopt-3.0.1/cpp/tests/../sopt/logging.enabled.h:5,
                 from /build/1st/sopt-3.0.1/cpp/tests/../sopt/logging.h:7,
                 from /build/1st/sopt-3.0.1/cpp/tests/common_catch_main.cc:7:
/usr/include/spdlog/fmt/ostr.h:17:10: fatal error: spdlog/fmt/bundled/ostream.h: No such file or directory
   17 | #include <spdlog/fmt/bundled/ostream.h>
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.