```
-- Could not find a sufficient PETSC installation: PETSC is compiled
against a different MPI library than the one deal.II picked up.
-- DEAL_II_WITH_PETSC has unmet external dependencies.
CMake Error at cmake/configure/configure_3_petsc.cmake:141 (MESSAGE):
Could not find the petsc library!
Could not find a sufficient PETSC installation:
PETSC has to be compiled against the same MPI library as deal.II but the
link line of PETSC contains:
/opt/intel/compilers_and_libraries_2018.2.199/linux/mpi/intel64/lib/debug_mt/libmpi.so
which is not listed in MPI_LIBRARIES:
MPI_LIBRARIES =
"/opt/intel/compilers_and_libraries_2018.2.199/linux/mpi/intel64/lib/libmpicxx.so
/opt/intel/compilers_and_libraries_2018.2.199/linux/mpi/intel64/lib/libmpifort.so
/opt/intel/compilers
_and_libraries_2018.2.199/linux/mpi/intel64/lib/release_mt/libmpi.so
/opt/intel/compilers_and_libraries_2018.2.199/linux/mpi/intel64/lib/libmpigi.a
/lib64/libdl.so /lib64/librt.so /lib64/libpthread.so"
```
It seems to be dealII is unnecessarily picky here. The "debug" and
"release" libraries should be compatible. I tried adding a "-D
MPI_LIBRARIES=...." flag to cmake but that was ignored. Or misunderstood.
--
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