little more doc for DUNE_MPI

[[Imported from SVN: r5824]]

little more doc for DUNE_MPI
16bd381d · Jorrit Fahlke · 0680474a · 16bd381d
Commit 16bd381d authored 15 years ago by Jorrit Fahlke
--- a/m4/dune_mpi.m4
+++ b/m4/dune_mpi.m4
@@ -67,7 +67,8 @@ dnl -*- autoconf -*-
 #   MPI_CPPFLAGS (deprecated in favor of DUNEMPICPPFLAGS)
 #   MPI_LDFLAGS (deprecated in favor of DUNEMPILIBS and DUNEMPILDFLAGS)
 #   dune_MPI_VERSION
-#   with_mpi
+#   with_mpi ("no" if MPI is missing, "yes" followed by some more details if
+#             MPI is present)
 #
 # configure substitutions/Makefile variables
 #   MPICC