Merge pull request #1 from jsquyres/tjcw-tjcw-fix-mpi-sizeof

README: minor tweak to specifically mention GNU Fortran
hppritcha · Jul 7, 2017 · 3e6a196 · 3e6a196
2 parents 5de3d5d + 75ec541
commit 3e6a196
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/README b/README
@@ -368,6 +368,12 @@ Compiler Notes
     when Open MPI is built with a Fortran compiler that support the
     INTERFACE keyword and ISO_FORTRAN_ENV.
 
+    *** The Open MPI team has not tested to determine exactly which
+        version of the GNU Fortran compiler suite started supporting
+        what is required for MPI_SIZEOF.  We know that gfortran v4.8
+        (bundled in RHEL 7.x) supports the MPI_SIZEOF interfaces.
+        However, gfortran 4.4 (bundled in RHEL 6.x) does not.
+
   - The level of support provided by the mpi module is based on your
     Fortran compiler.