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ax_prog_f77_mpi.m4
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# ===========================================================================
# http://www.gnu.org/software/autoconf-archive/ax_prog_f77_mpi.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_PROG_F77_MPI([MPI-WANTED-TEST[, ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]])
#
# DESCRIPTION
#
# This macro tries to find out how to compile Fortran77 programs that use
# MPI (Message Passing Interface), a standard API for parallel process
# communication (see http://www-unix.mcs.anl.gov/mpi/). The macro has to
# be used instead of the standard macro AC_PROG_F77 and will replace the
# standard variable F77 with the found compiler.
#
# MPI-WANTED-TEST is used to test whether MPI is actually wanted by the
# user. If MPI-WANTED_TEST is omitted or if it succeeds, the macro will
# try to find out how to use MPI, if it fails, the macro will call
# AC_PROG_CC to find a standard C compiler instead.
#
# When MPI is found, ACTION-IF-FOUND will be executed, if MPI is not found
# (or MPI-WANTED-TEST fails) ACTION-IF-NOT-FOUND is executed. If
# ACTION-IF-FOUND is not set, the macro will define HAVE_MPI.
#
# The following example demonstrates usage of the macro:
#
# # If --with-mpi=auto is used, try to find MPI, but use standard F77 compiler if it is not found.
# # If --with-mpi=yes is used, try to find MPI and fail if it isn't found.
# # If --with-mpi=no is used, use a standard F77 compiler instead.
# AC_ARG_WITH(mpi, [AS_HELP_STRING([--with-mpi],
# [compile with MPI (parallelization) support. If none is found,
# MPI is not used. Default: auto])
# ],,[with_mpi=auto])
#
# AX_PROG_F77_MPI([test x"$with_mpi" != xno],[use_mpi=yes],[
# use_mpi=no
# if test x"$with_mpi" = xyes; then
# AC_MSG_FAILURE([MPI compiler requested, but couldn't use MPI.])
# else
# AC_MSG_WARN([No MPI compiler found, won't use MPI.])
# fi
# ])
#
# LICENSE
#
# Copyright (c) 2010,2011 Olaf Lenz <[email protected]>
#
# Modified 2015 Devin Matthews <[email protected]>
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation, either version 3 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
# scripts that are the output of Autoconf when processing the Macro. You
# need not follow the terms of the GNU General Public License when using
# or distributing such scripts, even though portions of the text of the
# Macro appear in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the Autoconf
# Macro released by the Autoconf Archive. When you make and distribute a
# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
#serial 2
AC_DEFUN([AX_PROG_F77_MPI], [
AC_PREREQ(2.50)
# Check for compiler
# Needs to be split off into an extra macro to ensure right expansion
# order.
AC_REQUIRE([_AX_PROG_F77_MPI],[_AX_PROG_F77_MPI([$1])])
AS_IF([test x"$_ax_prog_f77_mpi_mpi_wanted" = xno],
[ _ax_prog_f77_mpi_mpi_found=no ],
[
AC_LANG_PUSH([Fortran 77])
# test whether MPI_INIT is available
# We do not use AC_SEARCH_LIBS here, as it caches its outcome and
# thus disallows corresponding calls in the other AX_PROG_*_MPI
# macros.
for lib in NONE mpifort fmpi fmpich; do
save_LIBS=$LIBS
if test x"$lib" = xNONE; then
AC_MSG_CHECKING([for function MPI_INIT])
else
AC_MSG_CHECKING([for function MPI_INIT in -l$lib])
LIBS="-l$lib $LIBS"
fi
AC_LINK_IFELSE([AC_LANG_CALL([],[MPI_INIT])],
[ _ax_prog_f77_mpi_mpi_found=yes ],
[ _ax_prog_f77_mpi_mpi_found=no ])
AC_MSG_RESULT($_ax_prog_f77_mpi_mpi_found)
if test "x$_ax_prog_f77_mpi_mpi_found" = "xyes"; then
break;
fi
LIBS=$save_LIBS
done
# Check for header
AS_IF([test x"$_ax_prog_f77_mpi_mpi_found" = xyes], [
AC_MSG_CHECKING([for mpif.h])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[[
include 'mpif.h'
]])],
[ AC_MSG_RESULT(yes)],
[ AC_MSG_RESULT(no)
_ax_prog_f77_mpi_mpi_found=no
])
])
AC_LANG_POP([Fortran 77])
])
# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
AS_IF([test x"$_ax_prog_f77_mpi_mpi_found" = xyes], [
ifelse([$2],,[AC_DEFINE(HAVE_MPI,1,[Define if you have the MPI library.])],[$2])
:
],[
$3
:
])
])dnl AX_PROG_F77_MPI
dnl _AX_PROG_F77_MPI is an internal macro required by AX_PROG_F77_MPI.
dnl To ensure the right expansion order, the main function AX_PROG_F77_MPI
dnl has to be split into two parts. This part looks for the MPI
dnl compiler, while the other one tests whether an MPI program can be
dnl compiled.
dnl
dnl Known Fortran 77 compilers:
dnl af77 Apogee F77 compiler for Intergraph hardware running CLIX
dnl blrts_xlf IBM BlueGene/L F77 cross-compiler
dnl cf77 native F77 compiler under older Crays (prefer over fort77)
dnl f77 generic compiler names
dnl fl32 Microsoft Fortran 77 "PowerStation" compiler
dnl fort77 native F77 compiler under HP-UX (and some older Crays)
dnl frt Fujitsu F77 compiler
dnl g77 GNU Fortran 77 compiler
dnl pgf77 Portland Group F77 compiler
dnl xlf IBM (AIX) F77 compiler
dnl pathf77 PathScale
dnl
AC_DEFUN([_AX_PROG_F77_MPI], [
AC_ARG_VAR(MPIF77,[MPI Fortran77 compiler command])
ifelse([$1],,[_ax_prog_f77_mpi_mpi_wanted=yes],[
AC_MSG_CHECKING([whether to compile using MPI])
if $1; then
_ax_prog_f77_mpi_mpi_wanted=yes
else
_ax_prog_f77_mpi_mpi_wanted=no
fi
AC_MSG_RESULT($_ax_prog_f77_mpi_mpi_wanted)
])
if test x"$_ax_prog_f77_mpi_mpi_wanted" = xyes; then
if test -z "$F77" && test -n "$MPIF77"; then
F77="$MPIF77"
else
AC_CHECK_TOOLS([F77], [mpif77 ftn])
fi
fi
AC_PROG_F77
])dnl _AX_PROG_F77_MPI