Bug#1132059: adios2: ftbfs with GCC-16

[Drew Parsons]

Source: adios2
Followup-For: Bug #1132059
Control: tags -1 ftbfs

This is not a bug in adios2.  The error message states that it's
coming from openmpi (mpifort).

I don't think this is a bug in openmpi either.  It's just looking for
the fortran it was compiled against.  Other compilers can be used
instead through the FC environment variable. Perhaps it's an openmpi
bug that it's looking for the specific gfortran version by default,
rather than using the general /usr/bin/gfortran.

So the build error in adios2 will clear once openmpi is rebuilt
against gcc 16 (or reconfigured to use default gfortran).