In order to work around an issue with flang based compilers,
avoid declaring bind(C) constants and use plain Fortran parameter
instead.
For example,
type(MPI_Comm), bind(C, name="ompi_f08_mpi_comm_world") OMPI_PROTECTED :: MPI_COMM_WORLD
is changed to
type(MPI_Comm), parameter :: MPI_COMM_WORLD = MPI_Comm(OMPI_MPI_COMM_WORLD)
Note that in order to preserve ABI compatibility, ompi/mpi/fortran/use-mpi-f08/constants.{c,h}
have been kept even if its symbols are no more referenced by Open MPI.
Refs. open-mpi/ompi#7091
Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>
the shortfloat extension is only made of header files,
and hence do not require a library to be built.
Refs. open-mpi/ompi#6205
Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>
Signed-off-by: KAWASHIMA Takahiro <t-kawashima@jp.fujitsu.com>
`MPIX_C_FLOAT16` is defined as a synonym for `MPIX_SHORT_FLOAT`
if the C compiler supports `_Float16`, which is defined in
ISO/IEC JTC 1/SC 22/WG 14 N1945 (ISO/IEC TS 18661-3:2015).
This name and meaning are same as that of MPICH. This may be
a transitional datatype until the MPI Forum decides a proper
name for the type.
Signed-off-by: KAWASHIMA Takahiro <t-kawashima@jp.fujitsu.com>
This extension provides additional MPI datatypes `MPIX_SHORT_FLOAT`,
`MPIX_C_SHORT_FLOAT_COMPLEX`, and `MPIX_CXX_SHORT_FLOAT_COMPLEX`
for `short float` (C/C++), `short float _Complex` (C), and
`std::complex<short float>` (C++), respectively, or their alternate
types like `_Float16`.
See `ompi/mpiext/shortfloat/README.txt` for details.
Signed-off-by: KAWASHIMA Takahiro <t-kawashima@jp.fujitsu.com>
