Build Failure with PETSC-Complex, Invalid Static Cast

[IntrepidNomad]

[ 56%] Building CXX object source/matrix_free/CMakeFiles/object_matrix_free_debug.dir/evaluation_template_face_factory_inst4.cc.o
In file included from /home/***/AUR/deal-ii/src/dealii-9.5.1/include/deal.II/base/numbers.h:28,
                 from /home/***/AUR/deal-ii/src/build/include/deal.II/base/config.h:592,
                 from /home/***/AUR/deal-ii/src/dealii-9.5.1/include/deal.II/lac/petsc_sparse_matrix.h:20,
                 from /home/***/AUR/deal-ii/src/dealii-9.5.1/source/lac/petsc_parallel_sparse_matrix.cc:16,
                 from /home/***/AUR/deal-ii/src/build/source/lac/unity_1.cc:5:
/home/***/AUR/deal-ii/src/dealii-9.5.1/source/lac/petsc_vector_base.cc: In member function ‘void dealii::PETScWrappers::VectorBase::determine_ghost_indices()’:
/home/***/AUR/deal-ii/src/dealii-9.5.1/source/lac/petsc_vector_base.cc:280:20: error: invalid ‘static_cast’ from type ‘PetscScalar’ {aka ‘std::complex<double>’} to type ‘PetscInt’ {aka ‘int’}
  280 |             Assert(static_cast<PetscInt>(static_cast<PetscScalar>(
      |                    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  281 |                      ghost_start_index + i)) == (ghost_start_index + i),
      |                      ~~~~~~~~~~~~~~~~~~~~~~~
/home/***/AUR/deal-ii/src/dealii-9.5.1/source/lac/petsc_vector_base.cc:280:13: note: in expansion of macro ‘Assert’
  280 |             Assert(static_cast<PetscInt>(static_cast<PetscScalar>(
      |             ^~~~~~
make[2]: *** [source/lac/CMakeFiles/object_lac_debug.dir/build.make:90: source/lac/CMakeFiles/object_lac_debug.dir/unity_1.cc.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:2150: source/lac/CMakeFiles/object_lac_debug.dir/all] Error 2

[carlosal1015]

I do not know why I found the same issue with PETSc 3.20.2. This is my configuration

[drwells]

That's because this is a bug with deal.II, not PETSc - it isn't fixed in 9.5.1.

[carlosal1015]

Many thanks for heads up.