diff --git a/README b/README index 9cca8d595c..6c62ae8898 100644 --- a/README +++ b/README @@ -192,15 +192,17 @@ Compiler Notes for more details: https://github.com/open-mpi/ompi/issues/3612 -- Compiling Fortran programs using the mpi_f08 module on PowerPC with - the PGI (tested 17.5) or XL (tested v15.1.5) Fortran compilers and GNU - linker after 2.25.1 and before 2.28 will likely experience runtime failures. +- MPI applications that use the mpi_f08 module on PowerPC platforms + (tested ppc64le) will likely experience runtime failures if: + - they are using a GNU linker (ld) version after v2.25.1 and before v2.28, + -and- + - they compiled with PGI (tested 17.5) or XL (tested v15.1.5) compilers. This was noticed on Ubuntu 16.04 which uses the 2.26.1 version of ld by - default. However, this issue impacts any OS running the impacted - version of ld. This GNU linker regression will be fixed in version 2.28. + default. However, this issue impacts any OS using a version of ld noted + above. This GNU linker regression will be fixed in version 2.28. Below is a link to the GNU bug on this issue: https://sourceware.org/bugzilla/show_bug.cgi?id=21306 - The XL compiler will have a fix for this issue in their next release. + The XL compiler will include a fix for this issue in a future release. - On NetBSD-6 (at least AMD64 and i386), and possibly on OpenBSD, libtool misidentifies properties of f95/g95, leading to obscure