From 75ec541610a37eed68ec7d726e938da8781ebfd7 Mon Sep 17 00:00:00 2001 From: Jeff Squyres Date: Fri, 7 Jul 2017 07:30:03 -0700 Subject: [PATCH] README: minor tweak to specifically mention GNU Fortran Lots of people still use GFortran, and lots of people still use somewhat old versions of it (e.g., if it's bundled in their older-but-still-installed Linux distros). So let's specifically mention it. This may be a bit overkill, but more specific docs are usually a Good Thing (i.e., they can prevent questions from being sent to the mailing list). Signed-off-by: Jeff Squyres --- README | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/README b/README index 59ff55f61b8..f3d0c7ca6e4 100644 --- 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.