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# =========================================================================== |
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# http://www.nongnu.org/autoconf-archive/ax_mpi.html |
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# =========================================================================== |
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# |
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# SYNOPSIS |
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# |
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# AX_MPI([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]) |
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# |
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# DESCRIPTION |
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# |
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# This macro tries to find out how to compile programs that use MPI |
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# (Message Passing Interface), a standard API for parallel process |
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# communication (see http://www-unix.mcs.anl.gov/mpi/) |
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# |
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# On success, it sets the MPICC, MPICXX, MPIF77, or MPIFC output variable |
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# to the name of the MPI compiler, depending upon the current language. |
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# (This may just be $CC/$CXX/$F77/$FC, but is more often something like |
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# mpicc/mpiCC/mpif77/mpif90.) It also sets MPILIBS to any libraries that |
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# are needed for linking MPI (e.g. -lmpi or -lfmpi, if a special |
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# MPICC/MPICXX/MPIF77/MPIFC was not found). |
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# |
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# If you want to compile everything with MPI, you should set: |
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# |
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# CC="MPICC" #OR# CXX="MPICXX" #OR# F77="MPIF77" #OR# FC="MPIFC" |
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# LIBS="$MPILIBS $LIBS" |
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# |
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# NOTE: The above assumes that you will use $CC (or whatever) for linking |
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# as well as for compiling. (This is the default for automake and most |
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# Makefiles.) |
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# |
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# The user can force a particular library/compiler by setting the |
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# MPICC/MPICXX/MPIF77/MPIFC and/or MPILIBS environment variables. |
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# |
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# ACTION-IF-FOUND is a list of shell commands to run if an MPI library is |
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# found, and ACTION-IF-NOT-FOUND is a list of commands to run if it is not |
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# found. If ACTION-IF-FOUND is not specified, the default action will |
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# define HAVE_MPI. |
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# |
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# LICENSE |
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# |
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# Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu> |
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# Copyright (c) 2008 Julian C. Cummings <cummings@cacr.caltech.edu> |
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# |
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# This program is free software: you can redistribute it and/or modify it |
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# under the terms of the GNU General Public License as published by the |
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# Free Software Foundation, either version 3 of the License, or (at your |
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# option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, but |
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# WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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# Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License along |
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# with this program. If not, see <http://www.gnu.org/licenses/>. |
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# |
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# As a special exception, the respective Autoconf Macro's copyright owner |
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# gives unlimited permission to copy, distribute and modify the configure |
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# scripts that are the output of Autoconf when processing the Macro. You |
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# need not follow the terms of the GNU General Public License when using |
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# or distributing such scripts, even though portions of the text of the |
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# Macro appear in them. The GNU General Public License (GPL) does govern |
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# all other use of the material that constitutes the Autoconf Macro. |
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# |
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# This special exception to the GPL applies to versions of the Autoconf |
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# Macro released by the Autoconf Archive. When you make and distribute a |
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# modified version of the Autoconf Macro, you may extend this special |
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# exception to the GPL to apply to your modified version as well. |
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AU_ALIAS([ACX_MPI], [AX_MPI]) |
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AC_DEFUN([AX_MPI], [ |
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AC_PREREQ(2.50) dnl for AC_LANG_CASE |
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AC_LANG_CASE([C], [ |
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AC_REQUIRE([AC_PROG_CC]) |
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AC_ARG_VAR(MPICC,[MPI C compiler command]) |
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AC_CHECK_PROGS(MPICC, openmpicc mpicc hcc mpxlc_r mpxlc mpcc cmpicc, $CC) |
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ax_mpi_save_CC="$CC" |
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CC="$MPICC" |
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AC_SUBST(MPICC) |
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], |
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[C++], [ |
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AC_REQUIRE([AC_PROG_CXX]) |
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AC_ARG_VAR(MPICXX,[MPI C++ compiler command]) |
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AC_CHECK_PROGS(MPICXX, openmpicxx openmpiCC openmpic++ mpic++ mpicxx mpiCC hcp mpxlC_r mpxlC mpCC cmpic++, $CXX) |
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ax_mpi_save_CXX="$CXX" |
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CXX="$MPICXX" |
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AC_SUBST(MPICXX) |
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], |
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[Fortran 77], [ |
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AC_REQUIRE([AC_PROG_F77]) |
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AC_ARG_VAR(MPIF77,[MPI Fortran 77 compiler command]) |
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AC_CHECK_PROGS(MPIF77, openmpif77 mpif77 hf77 mpxlf_r mpxlf mpf77 cmpifc, $F77) |
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ax_mpi_save_F77="$F77" |
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F77="$MPIF77" |
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AC_SUBST(MPIF77) |
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], |
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[Fortran], [ |
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AC_REQUIRE([AC_PROG_FC]) |
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AC_ARG_VAR(MPIFC,[MPI Fortran compiler command]) |
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AC_CHECK_PROGS(MPIFC, openmpif90 mpif90 mpxlf95_r mpxlf90_r mpxlf95 mpxlf90 mpf90 cmpif90c, $FC) |
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ax_mpi_save_FC="$FC" |
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FC="$MPIFC" |
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AC_SUBST(MPIFC) |
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]) |
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if test x = x"$MPILIBS"; then |
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AC_LANG_CASE([C], [AC_CHECK_FUNC(MPI_Init, [MPILIBS=" "])], |
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[C++], [AC_CHECK_FUNC(MPI_Init, [MPILIBS=" "])], |
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[Fortran 77], [AC_MSG_CHECKING([for MPI_Init]) |
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AC_LINK_IFELSE([AC_LANG_PROGRAM([],[ call MPI_Init])],[MPILIBS=" " |
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AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)])], |
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[Fortran], [AC_MSG_CHECKING([for MPI_Init]) |
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AC_LINK_IFELSE([AC_LANG_PROGRAM([],[ call MPI_Init])],[MPILIBS=" " |
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AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)])]) |
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fi |
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AC_LANG_CASE([Fortran 77], [ |
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if test x = x"$MPILIBS"; then |
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AC_CHECK_LIB(fmpi, MPI_Init, [MPILIBS="-lfmpi"]) |
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fi |
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if test x = x"$MPILIBS"; then |
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AC_CHECK_LIB(fmpich, MPI_Init, [MPILIBS="-lfmpich"]) |
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fi |
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], |
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[Fortran], [ |
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if test x = x"$MPILIBS"; then |
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AC_CHECK_LIB(fmpi, MPI_Init, [MPILIBS="-lfmpi"]) |
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fi |
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if test x = x"$MPILIBS"; then |
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AC_CHECK_LIB(mpichf90, MPI_Init, [MPILIBS="-lmpichf90"]) |
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fi |
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]) |
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if test x = x"$MPILIBS"; then |
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AC_CHECK_LIB(mpi, MPI_Init, [MPILIBS="-lmpi"]) |
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fi |
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if test x = x"$MPILIBS"; then |
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AC_CHECK_LIB(mpich, MPI_Init, [MPILIBS="-lmpich"]) |
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fi |
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dnl We have to use AC_TRY_COMPILE and not AC_CHECK_HEADER because the |
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dnl latter uses $CPP, not $CC (which may be mpicc). |
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AC_LANG_CASE([C], [if test x != x"$MPILIBS"; then |
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AC_MSG_CHECKING([for mpi.h]) |
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AC_TRY_COMPILE([#include <mpi.h>],[],[AC_MSG_RESULT(yes)], [MPILIBS="" |
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AC_MSG_RESULT(no)]) |
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fi], |
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[C++], [if test x != x"$MPILIBS"; then |
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AC_MSG_CHECKING([for mpi.h]) |
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AC_TRY_COMPILE([#include <mpi.h>],[],[AC_MSG_RESULT(yes)], [MPILIBS="" |
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AC_MSG_RESULT(no)]) |
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fi], |
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[Fortran 77], [if test x != x"$MPILIBS"; then |
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AC_MSG_CHECKING([for mpif.h]) |
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[ include 'mpif.h'])],[AC_MSG_RESULT(yes)], [MPILIBS="" |
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AC_MSG_RESULT(no)]) |
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fi], |
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[Fortran], [if test x != x"$MPILIBS"; then |
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AC_MSG_CHECKING([for mpif.h]) |
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[ include 'mpif.h'])],[AC_MSG_RESULT(yes)], [MPILIBS="" |
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AC_MSG_RESULT(no)]) |
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fi]) |
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AC_LANG_CASE([C], [CC="$ax_mpi_save_CC"], |
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[C++], [CXX="$ax_mpi_save_CXX"], |
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[Fortran 77], [F77="$ax_mpi_save_F77"], |
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[Fortran], [FC="$ax_mpi_save_FC"]) |
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AC_SUBST(MPILIBS) |
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# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: |
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if test x = x"$MPILIBS"; then |
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$2 |
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: |
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else |
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ifelse([$1],,[AC_DEFINE(HAVE_MPI,1,[Define if you have the MPI library.])],[$1]) |
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: |
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fi |
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])dnl AX_MPI |
