Merge branch 'issue/fix_HAVE_MPI_Wundef_warning' into 'master'
Fix HAVE_MPI undefined warnings (with -Wundef flag)
See merge request !992 (merged)
(cherry picked from commit 688413e1)
db5a2d3a Fix HAVE_MPI undefined warnings (with -Wundef flag)
Fix HAVE_MPI undefined warnings (with -Wundef flag)
See merge request !992 (merged)
(cherry picked from commit 688413e1)
db5a2d3a Fix HAVE_MPI undefined warnings (with -Wundef flag)