cmake SEACAS_HAVE_MPI examples

trilinos/Trilinos packages/seacas/applications/epu/CMakeLists.txt :42 

target_compile_definitions(pepu PUBLIC SEACAS_HAVE_MPI)

sandialabs/seacas packages/seacas/applications/epu/CMakeLists.txt :42 

target_compile_definitions(pepu PUBLIC SEACAS_HAVE_MPI)