retitle 924802 madness: FTBFS: failure checking for working mpicxx block 924802 807666 thanks
Just some quick fly-by observations: While the are errors about pow in the log, those seem to be harmless and properly ignored capability checking. The actual error causing the failure in the log is: -- Could NOT find MPI_CXX (missing: MPI_CXX_WORKS) CMake Error at /usr/share/cmake-3.13/Modules/FindPackageHandleStandardArgs.cmake:137 (message): Could NOT find MPI (missing: MPI_CXX_FOUND) (found version "3.1") Call Stack (most recent call first): /usr/share/cmake-3.13/Modules/FindPackageHandleStandardArgs.cmake:378 (_FPHSA_FAILURE_MESSAGE) /usr/share/cmake-3.13/Modules/FindMPI.cmake:1671 (find_package_handle_standard_args) external/mpi.cmake:6 (find_package) CMakeLists.txt:493 (include) FindMPI.cmake says: # If the find procedure fails for a variable ``MPI_<lang>_WORKS``, then the settings detected by or passed to # the module did not work and even a simple MPI test program failed to compile. As the build attempt was done using "mpich amd64 3.3-2", most likely this is related to #807666 (as the description of that bug says it makes using mpich with c++ fail, which would fit those symptoms). Bernhard R. Link -- F8AC 04D5 0B9B 064B 3383 C3DA AFFC 96D1 151D FFDC