simple MPI test for testing the autocmake

- code reviewer's comments included

test/fc_mpi/cmake/autocmake.cfg

@@ -0,0 +1,17 @@
+[project]
+name: example
+
+[fc]
+source: ../../../modules/fc.cmake
+
+[mpi]
+source: ../../../modules/mpi.cmake
+
+[int64]
+source: ../../../modules/int64.cmake
+
+[default_build_paths]
+source: ../../../modules/default_build_paths.cmake
+
+[src]
+source: ../../../modules/src.cmake

test/fc_mpi/src/CMakeLists.txt

@@ -0,0 +1,6 @@
+if (MPI_FOUND)
+    add_executable(example example.f90)
+else()
+    message(FATAL "MPI not found!")
+endif()
+

test/fc_mpi/src/example.f90

@@ -0,0 +1,16 @@
+program example
+   use mpi
+   implicit none
+   integer :: ierr, rank, size
+   logical :: test_ok
+   call MPI_INIT(ierr)
+   call MPI_COMM_RANK(MPI_COMM_WORLD, rank, ierr)
+   call MPI_COMM_SIZE(MPI_COMM_WORLD, size, ierr)
+   call MPI_FINALIZE(ierr)
+   test_ok=(size==2.and.(rank==0.or.rank==1))
+   if (test_ok) then
+      if (rank == 0) print *,'Test OK!'
+   else
+      stop "test fc_mpi failed!"
+   endif
+end program