Hi again,OK, the missing dependency was due to the naming of the symbols file, which is for that of the library, not the packege that provides it (i.e. libcalceph.symbols instead of libcalceph2.symbols).
So, now I just have the cross-build issue on: https://salsa.debian.org/debian-astro-team/calceph
2. I changed the gfortran build dep to gfortran:native. Now the crossbuild advances (no more complaints about the missing gfortran dependency), but the fortran bindings aren't getting built so the`libcalceph-fortran-dev` subpackage now complains on missing files...
I look forward to your help on sorting it out. -- Attila.