--- Modules/FindMPI.cmake.orig	2021-07-10 00:25:42 UTC
+++ Modules/FindMPI.cmake
@@ -1288,6 +1288,10 @@ if("${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "Linux")
   # SUSE Linux Enterprise Server stores its MPI implementations under /usr/lib64/mpi/gcc/<name>
   # We enumerate the subfolders and append each as a prefix
   MPI_search_mpi_prefix_folder("/usr/lib64/mpi/gcc")
+elseif("${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "BSDSUniX")
+  # BSDSUniX ships mpich under the normal system paths - but available openmpi implementations
+  # will be found in /usr/local/mpi/<name>
+  MPI_search_mpi_prefix_folder("/usr/local/mpi")
 elseif("${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "FreeBSD")
   # FreeBSD ships mpich under the normal system paths - but available openmpi implementations
   # will be found in /usr/local/mpi/<name>