1# =========================================================================== 2# http://www.gnu.org/software/autoconf-archive/ax_prog_fc_mpi.html 3# =========================================================================== 4# 5# SYNOPSIS 6# 7# AX_PROG_FC_MPI([MPI-WANTED-TEST[, ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]]) 8# 9# DESCRIPTION 10# 11# This macro tries to find out how to compile Fortran77 programs that use 12# MPI (Message Passing Interface), a standard API for parallel process 13# communication (see http://www-unix.mcs.anl.gov/mpi/). The macro has to 14# be used instead of the standard macro AC_PROG_FC and will replace the 15# standard variable FC with the found compiler. 16# 17# MPI-WANTED-TEST is used to test whether MPI is actually wanted by the 18# user. If MPI-WANTED_TEST is omitted or if it succeeds, the macro will 19# try to find out how to use MPI, if it fails, the macro will call 20# AC_PROG_CC to find a standard C compiler instead. 21# 22# When MPI is found, ACTION-IF-FOUND will be executed, if MPI is not found 23# (or MPI-WANTED-TEST fails) ACTION-IF-NOT-FOUND is executed. If 24# ACTION-IF-FOUND is not set, the macro will define HAVE_MPI. 25# 26# The following example demonstrates usage of the macro: 27# 28# # If --with-mpi=auto is used, try to find MPI, but use standard FC compiler if it is not found. 29# # If --with-mpi=yes is used, try to find MPI and fail if it isn't found. 30# # If --with-mpi=no is used, use a standard FC compiler instead. 31# AC_ARG_WITH(mpi, [AS_HELP_STRING([--with-mpi], 32# [compile with MPI (parallelization) support. If none is found, 33# MPI is not used. Default: auto]) 34# ],,[with_mpi=auto]) 35# 36# AX_PROG_FC_MPI([test x"$with_mpi" != xno],[use_mpi=yes],[ 37# use_mpi=no 38# if test x"$with_mpi" = xyes; then 39# AC_MSG_FAILURE([MPI compiler requested, but couldn't use MPI.]) 40# else 41# AC_MSG_WARN([No MPI compiler found, won't use MPI.]) 42# fi 43# ]) 44# 45# LICENSE 46# 47# Copyright (c) 2010,2011 Olaf Lenz <olenz@icp.uni-stuttgart.de> 48# 49# This program is free software: you can redistribute it and/or modify it 50# under the terms of the GNU General Public License as published by the 51# Free Software Foundation, either version 3 of the License, or (at your 52# option) any later version. 53# 54# This program is distributed in the hope that it will be useful, but 55# WITHOUT ANY WARRANTY; without even the implied warranty of 56# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General 57# Public License for more details. 58# 59# You should have received a copy of the GNU General Public License along 60# with this program. If not, see <http://www.gnu.org/licenses/>. 61# 62# As a special exception, the respective Autoconf Macro's copyright owner 63# gives unlimited permission to copy, distribute and modify the configure 64# scripts that are the output of Autoconf when processing the Macro. You 65# need not follow the terms of the GNU General Public License when using 66# or distributing such scripts, even though portions of the text of the 67# Macro appear in them. The GNU General Public License (GPL) does govern 68# all other use of the material that constitutes the Autoconf Macro. 69# 70# This special exception to the GPL applies to versions of the Autoconf 71# Macro released by the Autoconf Archive. When you make and distribute a 72# modified version of the Autoconf Macro, you may extend this special 73# exception to the GPL to apply to your modified version as well. 74 75#serial 2 76 77AC_DEFUN([AX_PROG_FC_MPI], [ 78AC_PREREQ(2.50) 79AC_BEFORE([$0],[AC_PROG_FC]) 80 81# Check for compiler 82# Needs to be split off into an extra macro to ensure right expansion 83# order. 84AC_REQUIRE([_AX_PROG_FC_MPI],[_AX_PROG_FC_MPI([$1])]) 85 86test x"$med_check_f90" = xyes && \ 87AS_IF([test x"$_ax_prog_fc_mpi_mpi_wanted" = xno], 88 [ _ax_prog_fc_mpi_mpi_found=no ], 89 [ 90 AC_LANG_PUSH([Fortran]) 91 92 # test whether MPI_INIT is available 93 # We do not use AC_SEARCH_LIBS here, as it caches its outcome and 94 # thus disallows corresponding calls in the other AX_PROG_*_MPI 95 # macros. 96 for lib in NONE mpichf90 fmpi fmpich; do 97 save_LIBS=$LIBS 98 if test x"$lib" = xNONE; then 99 AC_MSG_CHECKING([for function MPI_INIT]) 100 else 101 AC_MSG_CHECKING([for function MPI_INIT in -l$lib]) 102 LIBS="-l$lib $LIBS" 103 fi 104 AC_LINK_IFELSE([AC_LANG_CALL([],[MPI_INIT])], 105 [ _ax_prog_fc_mpi_mpi_found=yes ], 106 [ _ax_prog_fc_mpi_mpi_found=no ]) 107 AC_MSG_RESULT($_ax_prog_fc_mpi_mpi_found) 108 if test "x$_ax_prog_fc_mpi_mpi_found" = "xyes"; then 109 break; 110 fi 111 LIBS=$save_LIBS 112 done 113 114 # Check for header 115 AS_IF([test x"$_ax_prog_fc_mpi_mpi_found" = xyes], [ 116 AC_MSG_CHECKING([for mpif.h]) 117 AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[[ 118 include 'mpif.h' 119]])], 120 [ AC_MSG_RESULT(yes)], 121 [ AC_MSG_RESULT(no) 122 _ax_prog_fc_mpi_mpi_found=no 123 ]) 124 ]) 125 AC_LANG_POP([Fortran]) 126]) 127 128# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: 129AS_IF([test x"$_ax_prog_fc_mpi_mpi_found" = xyes], [ 130 ifelse([$2],,[AC_DEFINE(HAVE_MPI,1,[Define if you have the MPI library.])],[$2]) 131 : 132],[ 133 $3 134 : 135]) 136 137])dnl AX_PROG_FC_MPI 138 139dnl _AX_PROG_FC_MPI is an internal macro required by AX_PROG_FC_MPI. 140dnl To ensure the right expansion order, the main function AX_PROG_FC_MPI 141dnl has to be split into two parts. This part looks for the MPI 142dnl compiler, while the other one tests whether an MPI program can be 143dnl compiled. 144dnl 145AC_DEFUN([__AX_PROG_FC_MPI], [ 146 AC_ARG_VAR(MPIFC,[MPI Fortran compiler command]) 147 ifelse([$1],,[_ax_prog_fc_mpi_mpi_wanted=yes],[ 148 AC_MSG_CHECKING([whether to compile FC using MPI]) 149 if $1; then 150 _ax_prog_fc_mpi_mpi_wanted=yes 151 else 152 _ax_prog_fc_mpi_mpi_wanted=no 153 fi 154 AC_MSG_RESULT($_ax_prog_fc_mpi_mpi_wanted) 155 ]) 156 if (test x"$_ax_prog_fc_mpi_mpi_wanted" = xyes && test x"$med_check_f90" = xyes) ; then 157 if test -z "$FC" && test -z "$f90prog" && test -n "$MPIFC"; then 158dnl echo "------------------FC 1 -----------------------" 159 FC="$MPIFC" 160 elif test -z "$FC" && test -n "$f90prog"; then 161dnl echo "------------------FC 1b -----------------------" 162 FC="$f90prog" 163 elif test -z "$FC"; then 164dnl echo "------------------FC 1c -----------------------" 165dnl echo "--- FC ---> $FC" 166 AC_CHECK_TOOLS([FC], [mpif95 mpxlf95_r mpxlf95 ftn mpif90 mpxlf90_r mpxlf90 mpf90 cmpif90c sxmpif90 mpif77 hf77 mpxlf_r mpxlf mpifrt mpf77 cmpifc xlf95 pgf95 pathf95 ifort g95 f95 fort ifc efc openf95 sunf95 crayftn gfortran lf95 ftn xlf90 f90 pgf90 pghpf pathf90 epcf90 sxf90 openf90 sunf90 xlf f77 frt pgf77 pathf77 g77 cf77 fort77 fl32 af77]) 167dnl echo "--- FC ---> $FC" 168dnl echo "------------------FC 2 -----------------------" 169 fi 170 fi 171])dnl _AX_PROG_FC_MPI 172 173AC_DEFUN([_AX_PROG_FC_MPI], [ 174 AC_REQUIRE([__AX_PROG_FC_MPI],[__AX_PROG_FC_MPI([$1])]) 175#echo "---------FC 3-----------------------" 176dnl AC_PROG_FC 177 AS_IF([test -n "${f90prog}"], 178 [ 179 if test x"$med_check_f90" = xyes; then 180 AC_PROG_FC([${f90prog}],[Fortran 90]) 181 fi 182 ],[ 183 if test x"$med_check_f90" = xyes ; then 184 AC_PROG_FC 185 fi 186 ]) 187#echo "---------FC 4-----------------------" 188]) 189