+If you use cmake, set the variables ``MPI_C_COMPILER``, ``MPI_CXX_COMPILER`` and
+``MPI_Fortran_COMPILER`` to the full path of smpicc, smpicxx and smpiff (or
+smpif90), respectively. Example:
+
+.. code-block:: shell
+
+ cmake -DMPI_C_COMPILER=/opt/simgrid/bin/smpicc -DMPI_CXX_COMPILER=/opt/simgrid/bin/smpicxx -DMPI_Fortran_COMPILER=/opt/simgrid/bin/smpiff .
+