I tried to compile deal.II on a new computer, but I got multiple linking 
errors for some of the examples:
/usr/lib64/gcc/x86_64-suse-linux/8/../../../../x86_64-suse-linux/bin/ld: ../
lib/libdeal_II.g.so.9.1.0-pre: undefined reference to 
`dealii::VectorizedArray<double>::n_array_elements'
/usr/lib64/gcc/x86_64-suse-linux/8/../../../../x86_64-suse-linux/bin/ld: 
../lib/libdeal_II.g.so.9.1.0-pre: undefined reference to `dealii::
VectorizedArray<float>::n_array_elements'

The examples in question are all debug versions of the examples, with 
example number 2, 3, 24, 29, 36, 44, 45, 48, 50, 52, 53, 55, 56, 59, 60. I 
used the following external libraries/options: 
ADOL-C, Boost, C++14/17, GSL, HDF5, Lapack, Metis, MPI, nanoflann, P4est, 
PETSC, ScalaPack, SLEPC, Sundials, Threads, Trilinos, Umfpack and Zlib
and the internal version of Muparser
Why do I get that linking error, and how can I fix it? Apparently it is not 
related to the external libraries, else it would show up. Is that correct?
Thanks!

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