only test mpif.h

test/fc_mpi/src/CMakeLists.txt

@@ -1,6 +1,5 @@
 if(MPI_FOUND)
     add_executable(example example.F90)
-    target_link_libraries(example ${MPI_LIBRARIES})
 else()
     message(FATAL_ERROR "MPI not found")
 endif()

test/fc_mpi/src/example.F90

@@ -1,33 +1,13 @@
 program example
 
-   call init()
-   call test_use()
-   call finalize()
-
-contains
-
-   subroutine init()
-      use mpi, only: MPI_Init
-      implicit none
-      integer :: ierr
-      call MPI_Init(ierr)
-   end subroutine
-
-   subroutine finalize()
-      use mpi, only: MPI_Finalize
-      implicit none
-      integer :: ierr
-      call MPI_Finalize(ierr)
-   end subroutine
-
-   subroutine test_use()
-
    implicit none
 #include "mpif.h"
 
    integer :: ierr, rank, num_ranks
    logical :: test_ok
 
+   call MPI_Init(ierr)
+
    call MPI_COMM_RANK(MPI_COMM_WORLD, rank, ierr)
    call MPI_COMM_SIZE(MPI_COMM_WORLD, num_ranks, ierr)
 
@@ -39,6 +19,6 @@ contains
       stop "FAILED"
    endif
 
-   end subroutine
+   call MPI_Finalize(ierr)
 
 end program