dnl

dnl This files contains additional macros for using autoconf to 

dnl build configure scripts.

dnl

dnl Almost all of this file is taken from the aclocal.m4 of MPICH

dnl

dnl Get the format of Fortran names.  Uses F77, FFLAGS, and sets WDEF.

dnl If the test fails, sets NOF77 to 1, HAVE_FORTRAN to 0.

dnl

dnl

AC_DEFUN([PAC_GET_FORTNAMES],[

   rm -f confftest.f confftest.$OBJEXT

   cat > confftest.f <

       subroutine mpir_init_fop( a )

       integer a

       a = 1

       return

       end

EOF

   $F77 $FFLAGS -c confftest.f > /dev/null 2>&1

   if test ! -s confftest.$OBJEXT ; then

	AC_MSG_WARN([Unable to test Fortran compiler.  Compiling a test 

program failed to produce an object file])

	NOF77=1

   elif test -z "$FORTRANNAMES" ; then

     # MAC OS X (and probably FreeBSD need strings - (not strings -a)

     # Cray doesn't accept -a ...

     allstrings="-a"

     if test $arch_CRAY ; then 

	allstrings="" 

     elif strings - confftest.$OBJEXT < /dev/null >/dev/null 2>&1 ; then

         allstrings="-"

     elif strings -a confftest.$OBJEXT < /dev/null >/dev/null 2>&1 ; then

         allstrings="-a"

     fi

     nameform1=`strings $allstrings confftest.$OBJEXT | grep mpir_init_fop_  | head -1`

     nameform2=`strings $allstrings confftest.$OBJEXT | grep MPIR_INIT_FOP   | head -1`

     nameform3=`strings $allstrings confftest.$OBJEXT | grep mpir_init_fop   | head -1`

     nameform4=`strings $allstrings confftest.$OBJEXT | grep mpir_init_fop__ | head -1`

    rm -f confftest.f confftest.$OBJEXT

    if test -n "$nameform4" ; then

	echo "Fortran externals are lower case and have two trailing underscores"

	FORTRANNAMES="FORTRANDOUBLEUNDERSCORE"

    elif test -n "$nameform1" ; then

        # We don't set this in CFLAGS; it is a default case

        echo "Fortran externals have a trailing underscore and are lowercase"

	FORTRANNAMES="FORTRANUNDERSCORE"

    elif test -n "$nameform2" ; then

	echo "Fortran externals are uppercase"     

	FORTRANNAMES="FORTRANCAPS" 

    elif test -n "$nameform3" ; then

	echo "Fortran externals are lower case"

	FORTRANNAMES="FORTRANNOUNDERSCORE"

    else

	AC_MSG_WARN([Unable to determine the form of Fortran external names.

Make sure that the compiler $F77 can be run on this system.

Turning off Fortran (-nof77 being assumed)])

	NOF77=1

    fi

    fi

    if test -n "$FORTRANNAMES" ; then

        WDEF="-D$FORTRANNAMES"

    fi

    # Delete confftest files with any extension.  This catches the case

    # where auxillary files, such as coverage files, are removed.

    rm -f confftest.*

    ])dnl

dnl

define(PAC_GET_SPECIAL_SYSTEM_INFO,[

#

if test -n "$arch_IRIX"; then

   AC_MSG_CHECKING(for IRIX OS version)

   dnl This block of code replaces a generic "IRIX" arch value with

   dnl  IRIX_<version>_<chip>

   dnl  For example

   dnl  IRIX_5_4400 (IRIX 5.x, using MIPS 4400)

   osversion=`uname -r | sed 's/\..*//'`

   dnl Note that we need to allow brackets here, so we briefly turn off 

   dnl the macro quotes

   changequote(,)dnl

   dnl Get the second field (looking for 6.1)

   osvminor=`uname -r | sed 's/[0-9]\.\([0-9]*\)\..*/\1/'`

   changequote([,])dnl

   AC_MSG_RESULT($osversion)

   dnl Get SGI processor count by quick hack

   AC_MSG_CHECKING(for IRIX cpucount)

   changequote(,)dnl

   cpucount=`hinv | grep '[0-9]* [0-9]* MHZ IP[0-9]* Proc' | cut -f 1 -d' '`

   if test "$cpucount" = "" ; then

     cpucount=`hinv | grep 'Processor [0-9]*:' | wc -l | sed -e 's/ //g'`

   fi

   changequote([,])dnl

   if test "$cpucount" = "" ; then

     AC_MSG_RESULT([Could not determine cpucount.  Please send])

     hinv

     AC_MSG_ERROR([to romio-maint@mcs.anl.gov])

   fi

   AC_MSG_RESULT($cpucount)

   dnl

   AC_MSG_CHECKING(for IRIX cpumodel)

   dnl The tail -1 is necessary for multiple processor SGI boxes

   dnl We might use this to detect SGI multiprocessors and recommend

   dnl -comm=shared

   cputype=`hinv -t cpu | tail -1 | cut -f 3 -d' '`

   if test -z "$cputype" ; then

        AC_MSG_RESULT([Could not get cputype from hinv -t cpu command. Please send])

        hinv -t cpu 2>&1

        hinv -t cpu | cut -f 3 -d' ' 2>&1

	AC_MSG_ERROR([to romio-maint@mcs.anl.gov])

   fi

   AC_MSG_RESULT($cputype)

   dnl echo "checking for osversion and cputype"

   dnl cputype may contain R4400, R2000A/R3000, or something else.  

   dnl We may eventually need to look at it.

   if test -z "$osversion" ; then

        AC_MSG_RESULT([Could not determine OS version.  Please send])

        uname -a

        AC_MSG_ERROR([to romio-maint@mcs.anl.gov])

   elif test $osversion = 4 ; then

        true

   elif test $osversion = 5 ; then

        true

   elif test $osversion = 6 ; then

        true

   else 

       AC_MSG_RESULT([Could not recognize the version of IRIX (got $osversion).

ROMIO knows about versions 4, 5 and 6; the version being returned from 

uname -r is $osversion.  Please send])

       uname -a 2>&1

       hinv 2>&1

       AC_MSG_ERROR([to romio-maint@mcs.anl.gov])

   fi

   AC_MSG_CHECKING(for cputype)

   OLD_ARCH=IRIX

   IRIXARCH="$ARCH_$osversion"

   dnl Now, handle the chip set

   changequote(,)dnl

   cputype=`echo $cputype | sed -e 's%.*/%%' -e 's/R//' | tr -d "[A-Z]"`

   changequote([,])dnl

   case $cputype in 

        3000) ;;

        4000) ;;

        4400) ;;

        4600) ;;

        5000) ;;

        8000) ;;

        10000);;

	12000);;

        *)

	AC_MSG_WARN([Unexpected IRIX/MIPS chipset $cputype.  Please send the output])

        uname -a 2>&1

        hinv 2>&1 

        AC_MSG_WARN([to romio-maint@mcs.anl.gov

ROMIO will continue and assume that the cputype is

compatible with a MIPS 4400 processor.])

        cputype=4400

        ;;

   esac

   AC_MSG_RESULT($cputype)

   IRIXARCH="$IRIXARCH_$cputype"

   echo "IRIX-specific architecture is $IRIXARCH"

fi

])dnl

dnl

dnl

define(PAC_TEST_MPI,[

  AC_MSG_CHECKING(if a simple MPI program compiles and links)

  rm -f mpitest.c

  cat > mpitest.c <

#include "mpi.h"

     main(int argc, char **argv)

     {

         MPI_Init(&argc,&argv);

         MPI_Finalize(); 

     }

EOF

  rm -f conftest$EXEEXT

  cmd="$CC $USER_CFLAGS -I$MPI_INCLUDE_DIR -o conftest$EXEEXT mpitest.c $MPI_LIB"

  echo "$as_me:$LINENO: $cmd" >&5

  $cmd >&5 2>&5

  if test ! -x conftest$EXEEXT ; then

      echo "$as_me:$LINENO: failed program was:" >&5

      sed 's/^/| /' mpitest.c >&5

      rm -f conftest$EXEEXT mpitest.c

      AC_MSG_ERROR([Unable to compile a simple MPI program.

Use environment variables to provide the location of MPI libraries and

include directories])

  else

      rm -f conftest$EXEEXT mpitest.c

  fi

AC_MSG_RESULT(yes)

])dnl

dnl

dnl

dnl

define(PAC_NEEDS_FINT,[

  AC_MSG_CHECKING(if MPI_Fint is defined in the MPI implementation)

  cat > mpitest1.c <

#include "mpi.h"

     main()

     {

         MPI_Fint i;

         i = 0;

     }

EOF

  rm -f mpitest1.$OBJEXT

  $CC $USER_CFLAGS -I$MPI_INCLUDE_DIR -c mpitest1.c > /dev/null 2>&1

  if test ! -s mpitest1.$OBJEXT ; then

      NEEDS_MPI_FINT="#define NEEDS_MPI_FINT"

      CFLAGS="$CFLAGS -DNEEDS_MPI_FINT"

      AC_MSG_RESULT(no)

      rm -f mpitest1.$OBJEXT mpitest1.c

  else

      NEEDS_MPI_FINT=""

      AC_MSG_RESULT(yes)

      rm -f mpitest1.$OBJEXT mpitest1.c

  fi

])dnl

dnl

define(PAC_MPI_LONG_LONG_INT,[

  AC_MSG_CHECKING(if MPI_LONG_LONG_INT is defined in mpi.h)

  rm -f mpitest.c

  cat > mpitest.c <

#include "mpi.h"

     main(int argc, char **argv)

     {

         long long i;   

         MPI_Init(&argc,&argv);

         MPI_Send(&i, 1, MPI_LONG_LONG_INT, 0, 0, MPI_COMM_WORLD);

         MPI_Finalize(); 

     }

EOF

  rm -f conftest$EXEEXT

  $CC $USER_CFLAGS -I$MPI_INCLUDE_DIR -o conftest$EXEEXT mpitest.c $MPI_LIB > /dev/null 2>&1

  if test -x conftest$EXEEXT ; then

      AC_MSG_RESULT(yes)

      AC_DEFINE(HAVE_MPI_LONG_LONG_INT,,[Define if mpi has long long it])

  else

      AC_MSG_RESULT(no)

  fi

  rm -f conftest$EXEEXT mpitest.c

])dnl

dnl

dnl PAC_LONG_LONG_64: check if there is a 64-bit long long

dnl

define(PAC_LONG_LONG_64,[

if test -n "$longlongsize" ; then

    if test "$longlongsize" = 8 ; then

       echo "defining MPI_Offset as long long in C and integer*8 in Fortran" 

       AC_DEFINE(HAVE_LONG_LONG_64,,[Define if long long is 64 bits])

       DEFINE_MPI_OFFSET="typedef long long MPI_Offset;"

       FORTRAN_MPI_OFFSET="integer*8"

       LL="\%lld"

    elif test "$longlongsize" = "int" ; then  # a hack to set MPI_Offset as int

       echo "defining MPI_Offset as int in C and integer in Fortran"

       DEFINE_MPI_OFFSET="typedef int MPI_Offset;"

       FORTRAN_MPI_OFFSET="integer"

       AC_DEFINE(MPI_OFFSET_IS_INT,,[Define if MPI_Offset is int])

       LL="\%d"

       MPI_OFFSET_KIND1="!"

       MPI_OFFSET_KIND2="!"

    else 

       echo "defining MPI_Offset as long in C and integer in Fortran" 

       DEFINE_MPI_OFFSET="typedef long MPI_Offset;"

       FORTRAN_MPI_OFFSET="integer"

       LL="\%ld"

       MPI_OFFSET_KIND1="!"

       MPI_OFFSET_KIND2="!"

    fi

else

   PAC_GET_TYPE_SIZE(long long, longlongsize)

   if test -n "$longlongsize" ; then

      if test "$longlongsize" = 8 ; then

         PAC_TEST_LONG_LONG()

      else

         echo "defining MPI_Offset as long in C and integer in Fortran" 

         DEFINE_MPI_OFFSET="typedef long MPI_Offset;"

         FORTRAN_MPI_OFFSET="integer"

         LL="\%ld"

         MPI_OFFSET_KIND1="!"

         MPI_OFFSET_KIND2="!"

      fi

   else 

dnl   check if longlong is not supported or only its size cannot be determined

dnl   because the program cannot be run.

      rm -f ltest.c

      cat > ltest.c <

        main()

        {

           long long i=8;

           return 0;

        }

EOF

      rm -f conftest$EXEEXT

      $CC $USER_CFLAGS -o conftest$EXEEXT ltest.c > /dev/null 2>&1

      if test -x conftest$EXEEXT ; then

         echo "assuming size of long long is 8bytes; use '-longlongsize' to indicate otherwise"

         rm -f conftest$EXEEXT ltest.c

         echo "defining MPI_Offset as long long in C and integer*8 in Fortran" 

         AC_DEFINE(HAVE_LONG_LONG_64,,[Define if long long is 64 bits])

         DEFINE_MPI_OFFSET="typedef long long MPI_Offset;"

         FORTRAN_MPI_OFFSET="integer*8"

         LL="\%lld"

      else 

         echo "assuming long long is not available; use '-longlongsize' to indicate otherwise"

         echo "defining MPI_Offset as long in C and integer in Fortran" 

         DEFINE_MPI_OFFSET="typedef long MPI_Offset;"

         FORTRAN_MPI_OFFSET="integer"

         LL="\%ld"

         MPI_OFFSET_KIND1="!"

         MPI_OFFSET_KIND2="!"

      fi

   fi

fi

])dnl

dnl

dnl

define(PAC_MPI_INFO,[

  AC_MSG_CHECKING(if MPI_Info functions are defined in the MPI implementation)

  rm -f mpitest.c

  cat > mpitest.c <

#include "mpi.h"

     main(int argc, char **argv)

     {

         MPI_Info info;

         MPI_Init(&argc,&argv);

         MPI_Info_create(&info;;

         MPI_Finalize(); 

     }

EOF

  rm -f conftest$EXEEXT

  $CC $USER_CFLAGS -I$MPI_INCLUDE_DIR -o conftest$EXEEXT mpitest.c $MPI_LIB > /dev/null 2>&1

  if test -x conftest$EXEEXT ; then

      AC_MSG_RESULT(yes)

      AC_DEFINE(HAVE_MPI_INFO,1,[Define if MPI_Info available])

      HAVE_MPI_INFO="#define HAVE_MPI_INFO"

      MPI_FINFO1="!"

      MPI_FINFO2="!"

      MPI_FINFO3="!"

      MPI_FINFO4="!"

  else

      AC_MSG_RESULT(no)

      BUILD_MPI_INFO=1

      MPI_FINFO1="      INTEGER MPI_MAX_INFO_KEY, MPI_MAX_INFO_VAL"

      MPI_FINFO2="      PARAMETER (MPI_MAX_INFO_KEY=255, MPI_MAX_INFO_VAL=1024)"

      MPI_FINFO3="      INTEGER MPI_INFO_NULL"

      MPI_FINFO4="      PARAMETER (MPI_INFO_NULL=0)"

  fi

  rm -f conftest$EXEEXT mpitest.c

])dnl

dnl

dnl

define(PAC_MPI_DARRAY_SUBARRAY,[

  AC_MSG_CHECKING(if darray and subarray constructors are defined in the MPI implementation)

  rm -f mpitest.c

  cat > mpitest.c <

#include "mpi.h"

     main(int argc, char **argv)

     {

         int i=MPI_DISTRIBUTE_CYCLIC;

         MPI_Datatype t;

         MPI_Init(&argc,&argv);

         MPI_Type_create_darray(i, i, i, &i, &i, &i, &i, i, MPI_INT, &t);

         MPI_Type_create_subarray(i, &i, &i, &i, i, MPI_INT, &t);

         MPI_Finalize(); 

     }

EOF

  rm -f conftest$EXEEXT

  $CC $USER_CFLAGS -I$MPI_INCLUDE_DIR -o conftest$EXEEXT mpitest.c $MPI_LIB > /dev/null 2>&1

  if test -x conftest$EXEEXT ; then

      AC_MSG_RESULT(yes)

      AC_DEFINE(HAVE_MPI_DARRAY_SUBARRAY,,[Define if MPI Darray available])

      HAVE_MPI_DARRAY_SUBARRAY="#define HAVE_MPI_DARRAY_SUBARRAY"

      MPI_FARRAY1="!"

      MPI_FARRAY2="!"

      MPI_FARRAY3="!"

      MPI_FARRAY4="!"

      MPI_FARRAY5="!"

      MPI_FARRAY6="!"

      MPI_FARRAY7="!"

  else

      AC_MSG_RESULT(no)

      BUILD_MPI_ARRAY=1

      MPI_FARRAY1="      INTEGER MPI_ORDER_C, MPI_ORDER_FORTRAN"

      MPI_FARRAY2="      PARAMETER (MPI_ORDER_C=56, MPI_ORDER_FORTRAN=57)"

      MPI_FARRAY3="      INTEGER MPI_DISTRIBUTE_BLOCK, MPI_DISTRIBUTE_CYCLIC"

      MPI_FARRAY4="      INTEGER MPI_DISTRIBUTE_NONE, MPI_DISTRIBUTE_DFLT_DARG"

      MPI_FARRAY5="      PARAMETER (MPI_DISTRIBUTE_BLOCK=121, MPI_DISTRIBUTE_CYCLIC=122)"

      MPI_FARRAY6="      PARAMETER (MPI_DISTRIBUTE_NONE=123)"

      MPI_FARRAY7="      PARAMETER (MPI_DISTRIBUTE_DFLT_DARG=-49767)"

  fi

  rm -f conftest$EXEEXT mpitest.c

])dnl

dnl

dnl

define(PAC_CHECK_MPI_SGI_INFO_NULL,[

  AC_MSG_CHECKING([if MPI_INFO_NULL is defined in mpi.h])

  rm -f mpitest.c

  cat > mpitest.c <

#include "mpi.h"

     main(int argc, char **argv)

     {

	int i;

	i = MPI_INFO_NULL;

     }

EOF

  rm -f conftest$EXEEXT

  $CC $USER_CFLAGS -I$MPI_INCLUDE_DIR -o conftest$EXEEXT mpitest.c $MPI_LIB > /dev/null 2>&1

  if test -x conftest$EXEEXT ; then

      AC_MSG_RESULT(yes)

      cp adio/sgi/mpi3.1/*.h include

  else

      AC_MSG_RESULT(no)

  fi

  rm -f conftest$EXEEXT mpitest.c

])dnl

dnl

dnl

dnl

define(PAC_CHECK_MPIOF_H,[

  AC_MSG_CHECKING(if mpiof.h is included in mpif.h)

  rm -f mpitest.f

  cat > mpitest.f <

      program main

      implicit none

      include 'mpif.h'

      integer i

      i = MPI_MODE_RDWR

      stop

      end

EOF

  rm -f conftest$EXEEXT

  $F77 $FFLAGS -I$MPI_INCLUDE_DIR -o conftest$EXEEXT mpitest.f $MPI_LIB > /dev/null 2>&1

  if test -x conftest$EXEEXT ; then

      AC_MSG_RESULT(yes)

      MPIOF_H_INCLUDED=1

  else

      AC_MSG_RESULT(no)

  fi

  rm -f conftest$EXEEXT mpitest.f

])dnl

dnl

dnl

dnl check if pread64 is defined in IRIX. needed on IRIX 6.5

dnl

define(PAC_HAVE_PREAD64,[

  AC_MSG_CHECKING(if pread64 is defined)

  rm -f conftest.c

  cat > conftest.c <

#include <unistd.h>

     main()

     {

         int fd=0, buf=0, i=0;

         off64_t off=0;

         pread64(fd, &buf, i, off);

     }

EOF

  rm -f conftest$EXEEXT

  $CC $USER_CFLAGS -o conftest$EXEEXT conftest.c > /dev/null 2>&1

  if test -x conftest$EXEEXT ; then

      AC_MSG_RESULT(yes)

      AC_DEFINE(HAVE_PREAD64,,[Define if pread64 available])

  else

      AC_MSG_RESULT(no)

  fi

rm -f conftest$EXEEXT conftest.c

])dnl

dnl

dnl

define(PAC_TEST_MPI_SGI_type_is_contig,[

  AC_MSG_CHECKING(if MPI_SGI_type_is_contig is defined)

  rm -f mpitest.c

  cat > mpitest.c <

#include "mpi.h"

     main(int argc, char **argv)

     {

         MPI_Datatype type;

         int i;

         MPI_Init(&argc,&argv);

         i = MPI_SGI_type_is_contig(type);

         MPI_Finalize(); 

     }

EOF

  rm -f conftest$EXEEXT

  $CC $USER_CFLAGS -I$MPI_INCLUDE_DIR -o conftest$EXEEXT mpitest.c $MPI_LIB > /dev/null 2>&1

  if test -x conftest$EXEEXT ; then

     AC_MSG_RESULT(yes)

  else

     AC_MSG_RESULT(no)

     AC_DEFINE(NO_MPI_SGI_type_is_contig,,[Define if no MPI type is contig])

  fi

  rm -f conftest$EXEEXT mpitest.c

])dnl

dnl

dnl

dnl

define(PAC_TEST_MPI_COMBINERS,[

  AC_MSG_CHECKING(if MPI-2 combiners are defined in mpi.h)

  rm -f mpitest.c

  cat > mpitest.c <

#include "mpi.h"

     main(int argc, char **argv)

     {

         int i;

         MPI_Init(&argc,&argv);

         i = MPI_COMBINER_STRUCT;

         MPI_Finalize(); 

     }

EOF

  rm -f conftest$EXEEXT

  $CC $USER_CFLAGS -I$MPI_INCLUDE_DIR -o conftest$EXEEXT mpitest.c $MPI_LIB > /dev/null 2>&1

  if test -x conftest$EXEEXT ; then

     AC_MSG_RESULT(yes)

     AC_DEFINE(HAVE_MPI_COMBINERS,,[Define if MPI combiners available])

  else

     AC_MSG_RESULT(no)

  fi

  rm -f conftest$EXEEXT mpitest.c

])dnl

dnl

dnl

dnl PAC_MPI_OFFSET_KIND()

dnl

dnl tries to determine the Fortran 90 kind parameter for 8-byte integers

dnl

define(PAC_MPI_OFFSET_KIND,

[

# This is needed for Mac OSX 10.5

rm -rf conftest.dSYM

rm -f conftest*

# Determine the extension for Fortran 90 files (not all compilers accept

# .f and not all accept .f90)

if test -z "$ac_f90ext" ; then

    if test -z "$FC" ; then

       # This list should correspond to the list in aclocal_fc.m4

       AC_CHECK_PROGS(FC,ifort pgf90 pathf90 pathf95 xlf90 xlf95 f90 epcf90 \

       f95 fort lf95 gfortran g95 ifc efc)

    fi

    AC_MSG_CHECKING([for extension for Fortran 90 programs])

    ac_f90ext="f90"

    ac_f90compile='${FC-f90} -c $FCFLAGS conftest.$ac_f90ext 1>&AC_FD_CC'

    cat > conftest.$ac_f90ext <

      program conftest

      end

EOF

    if AC_TRY_EVAL(ac_f90compile) ; then

        AC_MSG_RESULT([f90])

    else

	# This is needed for Mac OSX 10.5

	rm -rf conftest.dSYM

        rm -f conftest*

        ac_f90ext="f"

        cat > conftest.$ac_f90ext <

      program conftest

      end

EOF

        if AC_TRY_EVAL(ac_f90compile) ; then

            AC_MSG_RESULT([f])

        else

            AC_MSG_RESULT([unknown!])

        fi

    fi

fi

AC_MSG_CHECKING([for Fortran 90 KIND parameter for 8-byte integers])

cat <<EOF > conftest.$ac_f90ext

      program main

      integer i

      i = selected_int_kind(16)

      open(8, file="conftest.out", form="formatted")

      write (8,*) i

      close(8)

      stop

      end

EOF

if test -z "$FC" ; then

   FC=f90

fi

KINDVAL=""

if $FC -o conftest$EXEEXT conftest.$ac_f90ext $FCFLAGS >/dev/null 2>&1 ; then

    ./conftest$EXEEXT >/dev/null 2>&1

    if test -s conftest.out ; then 

        KINDVAL=`cat conftest.out`

    fi

fi

# This is needed for Mac OSX 10.5

rm -rf conftest.dSYM

rm -f conftest*

if test -n "$KINDVAL" -a "$KINDVAL" != "-1" ; then

   AC_MSG_RESULT($KINDVAL)

   MPI_OFFSET_KIND1="      INTEGER MPI_OFFSET_KIND"

   MPI_OFFSET_KIND2="      PARAMETER (MPI_OFFSET_KIND=$KINDVAL)"

else

    AC_MSG_RESULT(unavailable)

fi

])dnl

dnl

dnl

define(PAC_TEST_MPI_HAVE_OFFSET_KIND,[

  AC_MSG_CHECKING(if MPI_OFFSET_KIND is defined in mpif.h)

  rm -f mpitest.f

  cat > mpitest.f <

      program main

      implicit none

      include 'mpif.h'

      integer i

      i = MPI_OFFSET_KIND

      stop

      end

EOF

  rm -f conftest$EXEEXT

  $F77 $FFLAGS -I$MPI_INCLUDE_DIR -o conftest$EXEEXT mpitest.f $MPI_LIB > /dev/null 2>&1

  if test -x conftest$EXEEXT ; then

     AC_MSG_RESULT(yes)

     MPI_OFFSET_KIND1="!"

     MPI_OFFSET_KIND2="!"

  else

     AC_MSG_RESULT(no)

  fi

  rm -f conftest$EXEEXT mpitest.f

])dnl

dnl

dnl

dnl PAC_GET_XFS_MEMALIGN

dnl 

dnl

define(PAC_GET_XFS_MEMALIGN,

[AC_MSG_CHECKING([for memory alignment needed for direct I/O])

rm -f memalignval

rm -f /tmp/romio_tmp.bin

AC_TEST_PROGRAM([#include <stdio.h>

#include <unistd.h>

#include <fcntl.h>

#include <stdio.h>

main() { 

  struct dioattr st;

  int fd = open("/tmp/romio_tmp.bin", O_RDWR | O_CREAT, 0644);

  FILE *f=fopen("memalignval","w");

  if (fd == -1) exit(1);

  if (!f) exit(1);

  fcntl(fd, F_DIOINFO, &st);

  fprintf( f, "%u\n", st.d_mem);

  exit(0);

}],Pac_CV_NAME=`cat memalignval`,Pac_CV_NAME="")

rm -f memalignval

rm -f /tmp/romio_tmp.bin

if test -n "$Pac_CV_NAME" -a "$Pac_CV_NAME" != 0 ; then

    AC_MSG_RESULT($Pac_CV_NAME)

    CFLAGS="$CFLAGS -DXFS_MEMALIGN=$Pac_CV_NAME"

else

    AC_MSG_RESULT(unavailable, assuming 128)

    CFLAGS="$CFLAGS -DXFS_MEMALIGN=128"

fi

])dnl

dnl

define(PAC_HAVE_MOUNT_NFS,[

  AC_MSG_CHECKING([if MOUNT_NFS is defined in the include files])

  rm -f conftest.c

  cat > conftest.c <

#include <sys/param.h>

#include <sys/mount.h>

     main()

     {

         int i=MOUNT_NFS;

     }

EOF

  rm -f conftest$EXEEXT

  $CC $USER_CFLAGS -o conftest$EXEEXT conftest.c > /dev/null 2>&1

  if test -x conftest$EXEEXT ; then

     AC_MSG_RESULT(yes)

     ROMIO_HAVE_MOUNT_NFS=1

     AC_DEFINE(HAVE_MOUNT_NFS,,[Define if MOUNT_NFS defined])

  else

     ROMIO_HAVE_MOUNT_NFS=0

     AC_MSG_RESULT(no)

  fi

  rm -f conftest$EXEEXT conftest.c

])dnl

dnl

dnl

dnl PAC_MPI_OFFSET_KIND_4BYTE()

dnl

dnl tries to determine the Fortran 90 kind parameter for 4-byte integers

dnl

define(PAC_MPI_OFFSET_KIND_4BYTE,

[AC_MSG_CHECKING([for Fortran 90 KIND parameter for 4-byte integers])

rm -f kind.f kind.$OBJEXT kind$EXEEXT

cat <<EOF > kind.f

      program main

      integer i

      i = selected_int_kind(8)

      open(8, file="k.out", form="formatted")

      write (8,*) i

      close(8)

      stop

      end

EOF

if test -z "$FC" ; then

   FC=f90

fi

KINDVAL=""

if $FC -o kind$EXEEXT kind.f $FCFLAGS >/dev/null 2>&1 ; then

    ./kind >/dev/null 2>&1

    if test -s k.out ; then 

        KINDVAL=`cat k.out`

    fi

fi

rm -f kind$EXEEXT k.out kind.f kind.$OBJEXT

if test -n "$KINDVAL" -a "$KINDVAL" != "-1" ; then

   AC_MSG_RESULT($KINDVAL)

   MPI_OFFSET_KIND1="      INTEGER MPI_OFFSET_KIND"

   MPI_OFFSET_KIND2="      PARAMETER (MPI_OFFSET_KIND=$KINDVAL)"

else

    AC_MSG_RESULT(unavailable)

fi

])dnl

dnl

dnl

define(PAC_FUNC_STRERROR,[

  AC_MSG_CHECKING([for strerror()])

  rm -f conftest.c

  cat > conftest.c <

#include <string.h>

     main()

     {

        char *s = strerror(5);

     }

EOF

  rm -f conftest$EXEEXT

  $CC $USER_CFLAGS -o conftest$EXEXT conftest.c >> config.log 2>&1

  if test -x conftest$EXEEXT ; then

     AC_MSG_RESULT(yes)

     AC_DEFINE(HAVE_STRERROR,,[Define if strerror available])

  else

     AC_MSG_RESULT(no)

     AC_MSG_CHECKING([for sys_errlist])

     rm -f conftest.c

changequote(,)

     cat > conftest.c <

#include <stdio.h>

        main()

        {

           extern char *sys_errlist[];

	   printf("%s\n", sys_errlist[34]);

        }

EOF

changequote([,])

     rm -f conftest$EXEEXT

     $CC $USER_CFLAGS -o conftest$EXEEXT conftest.c > config.log 2>&1

     if test -x conftest$EXEEXT ; then

        AC_MSG_RESULT(yes)

        AC_DEFINE(HAVE_SYSERRLIST,,[Define if syserrlist available])

     else

        AC_MSG_RESULT(no)

     fi

  fi

  rm -f conftest$EXEEXT conftest.c

])dnl

dnl

define(PAC_TEST_MPIR_STATUS_SET_BYTES,[

  AC_MSG_CHECKING(if MPIR_Status_set_bytes is defined)

  rm -f mpitest.c

  cat > mpitest.c <

#include "mpi.h"

     main(int argc, char **argv)

     {

     	 MPI_Status status;

         MPI_Datatype type;

	 int err;

         MPI_Init(&argc,&argv);

         MPIR_Status_set_bytes(status,type,err);

         MPI_Finalize(); 

     }

EOF

  rm -f conftest$EXEEXT

  $CC $USER_CFLAGS -I$MPI_INCLUDE_DIR -o conftest$EXEEXT mpitest.c $MPI_LIB > /dev/null 2>&1

  if test -x conftest$EXEEXT ; then

     AC_MSG_RESULT(yes)

     AC_DEFINE(HAVE_STATUS_SET_BYTES,,[Define if status set bytes available])

  else

     AC_MSG_RESULT(no)

  fi

  rm -f conftest$EXEEXT mpitest.c

])dnl

define(PAC_TEST_MPI_GREQUEST,[

  AC_MSG_CHECKING(support for generalized requests)

  rm -f mpitest.c

  cat > mpitest.c <

#include "mpi.h"

#include "stdio.h"

    main(int argc, char **argv)

    {

       MPI_Request request;

       MPI_Init(&argc, &argv);

       MPI_Grequest_start(NULL, NULL, NULL, NULL, &request);

       MPI_Finalize();

     }

EOF

  rm -f conftest$EXEEXT

  $CC $USER_CFLAGS -I$MPI_INCLUDE_DIR -o conftest$EXEEXT mpitest.c $MPI_LIB > /dev/null 2>&1

  if test -x conftest$EXEEXT ; then

     AC_MSG_RESULT(yes)

     AC_DEFINE(HAVE_MPI_GREQUEST,1,[Define if generalized requests avaliable])

     DEFINE_HAVE_MPI_GREQUEST="#define HAVE_MPI_GREQUEST 1"

  else

     AC_MSG_RESULT(no)

  fi

  rm -f conftest$EXEEXT mpitest.c

])dnl

define(PAC_TEST_MPI_GREQUEST_EXTENSIONS,[

  AC_MSG_CHECKING(support for non-standard extended generalized requests)

  rm -f mpitest.c

  cat > mpitest.c <

#include "mpi.h"

#include "stdio.h"

    main(int argc, char **argv)

    {

       MPIX_Grequest_class classtest

    }

EOF

  rm -f conftest$EXEEXT

  $CC $USER_CFLAGS -I$MPI_INCLUDE_DIR -o conftest$EXEEXT mpitest.c $MPI_LIB > /dev/null 2>&1

  if test -x conftest$EXEEXT ; then

     AC_MSG_RESULT(yes)

     AC_DEFINE(HAVE_MPI_GREQUEST_EXTENTIONS,1,[Define if non-standard generalized requests extensions avaliable])

     DEFINE_HAVE_MPI_GREQUEST_EXTENSIONS="#define HAVE_MPI_GREQUEST_EXTENSIONS 1"

  else

     AC_MSG_RESULT(no)

  fi

  rm -f conftest$EXEEXT mpitest.c

])dnl

define(PAC_TEST_NEEDS_CONST,[

   AC_MSG_CHECKING([const declarations needed in MPI routines])

   AC_COMPILE_IFELSE([AC_LANG_SOURCE(

   [ #include <mpi.h>

     int MPI_File_delete(char *filename, MPI_Info info) { return (0); }

   ] )],

   [

    AC_MSG_RESULT(no)

   ],[

    AC_MSG_RESULT(yes)

    AC_DEFINE(HAVE_MPIIO_CONST, const, [Define if MPI-IO routines need a const qualifier])

   ])

   ])