configure

MPICH是MPI的重要研究,提供了一系列的接口函数,为并行计算的实现提供了编程环境.

done
if test -z "$CCval" ; then
    # We have to set this outside of the loop lest the first failure in 
    # PROGRAM_CHECK set the value (which then terminates the effect of the
    # loop, since autoconf macros only set values that are null, they 
    # don't override them
    CCval=""
fi

      if test -z "$CCval" ; then
          print_error "Could not find a C compiler"
	  exit 1
      elif test "$CCVal" = "cc" ; then
          CC="cc -g -xcg92"
      else
	  CC=$CCval
      fi
	;;
    ncube)   CC=ncc ;;
    rs6000)
      CCval=""
      for p in xlC xlc cc
do
# Extract the first word of "$p", so it can be a program name with args.
set dummy $p; ac_word=$2
if test -z "$ac_echo_n" ; then
ac_echo_n=yes
if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
  # Stardent Vistra SVR4 grep lacks -e, says [e-mail].
  if (echo -n testing; echo 1,2,3) | sed s/-n/xn/ | grep xn >/dev/null; then
    ac_n= ac_c='
' ac_t='	'
  else
    ac_n=-n ac_c= ac_t=
  fi
else
  ac_n= ac_c='\c' ac_t=
fi
ac_echo_test=`echo foo 1>&1`
if test -z "$ac_echo_test" ; then
     print_error "Your sh shell does not handle the output redirection"
     print_error "1>&1 correctly.  Configure will work around this problem,"
     print_error "but you should report the problem to your vendor."
fi

fi
if test -z "$ac_echo_test" -a 1 = 1 ; then
echo $ac_n "checking for $ac_word""... $ac_c"
else
echo $ac_n "checking for $ac_word""... $ac_c" 1>&1
fi
ac_prog_where=""
if test -n "$CCval"; then
  ac_pg_CCval="$CCval" # Let the user override the test.
else
  ac_first_char=`expr "$p" : "\(.\)"`
  if test "$ac_first_char" = "/" -a -x "$p" ; then
       ac_pg_CCval="$p"
       ac_prog_where=$p
  else
      IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
      for ac_dir in $PATH; do
        test -z "$ac_dir" && ac_dir=.
        if test -f $ac_dir/$ac_word; then
          ac_pg_CCval="$p"
          ac_prog_where=$ac_dir/$ac_word
          break
        fi
      done
      IFS="$ac_save_ifs"
  fi
fi;CCval="$ac_pg_CCval"
if test -n "$ac_prog_where" ; then
  if test -z "$ac_echo_test" -a 1 = 1 ; then
echo "$ac_t""found $ac_prog_where ($CCval)"
else
echo "$ac_t""found $ac_prog_where ($CCval)" 1>&1
fi
  
else
  if test -z "$ac_echo_test" -a 1 = 1 ; then
echo "$ac_t""no"
else
echo "$ac_t""no" 1>&1
fi
fi

test -n "$CCval" && break
done
if test -z "$CCval" ; then
    # We have to set this outside of the loop lest the first failure in 
    # PROGRAM_CHECK set the value (which then terminates the effect of the
    # loop, since autoconf macros only set values that are null, they 
    # don't override them
    CCval=""
fi

      if test -n "$CCval" ; then
	 CC=$CCval
         GCC=""
      fi
      ;;
    *)
      CCval=""
      # Pick the vendor's cc ahead of gcc.
      for p in cc gcc
do
# Extract the first word of "$p", so it can be a program name with args.
set dummy $p; ac_word=$2
if test -z "$ac_echo_n" ; then
ac_echo_n=yes
if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
  # Stardent Vistra SVR4 grep lacks -e, says [e-mail].
  if (echo -n testing; echo 1,2,3) | sed s/-n/xn/ | grep xn >/dev/null; then
    ac_n= ac_c='
' ac_t='	'
  else
    ac_n=-n ac_c= ac_t=
  fi
else
  ac_n= ac_c='\c' ac_t=
fi
ac_echo_test=`echo foo 1>&1`
if test -z "$ac_echo_test" ; then
     print_error "Your sh shell does not handle the output redirection"
     print_error "1>&1 correctly.  Configure will work around this problem,"
     print_error "but you should report the problem to your vendor."
fi

fi
if test -z "$ac_echo_test" -a 1 = 1 ; then
echo $ac_n "checking for $ac_word""... $ac_c"
else
echo $ac_n "checking for $ac_word""... $ac_c" 1>&1
fi
ac_prog_where=""
if test -n "$CCval"; then
  ac_pg_CCval="$CCval" # Let the user override the test.
else
  ac_first_char=`expr "$p" : "\(.\)"`
  if test "$ac_first_char" = "/" -a -x "$p" ; then
       ac_pg_CCval="$p"
       ac_prog_where=$p
  else
      IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
      for ac_dir in $PATH; do
        test -z "$ac_dir" && ac_dir=.
        if test -f $ac_dir/$ac_word; then
          ac_pg_CCval="$p"
          ac_prog_where=$ac_dir/$ac_word
          break
        fi
      done
      IFS="$ac_save_ifs"
  fi
fi;CCval="$ac_pg_CCval"
if test -n "$ac_prog_where" ; then
  if test -z "$ac_echo_test" -a 1 = 1 ; then
echo "$ac_t""found $ac_prog_where ($CCval)"
else
echo "$ac_t""found $ac_prog_where ($CCval)" 1>&1
fi
  
else
  if test -z "$ac_echo_test" -a 1 = 1 ; then
echo "$ac_t""no"
else
echo "$ac_t""no" 1>&1
fi
fi

test -n "$CCval" && break
done
if test -z "$CCval" ; then
    # We have to set this outside of the loop lest the first failure in 
    # PROGRAM_CHECK set the value (which then terminates the effect of the
    # loop, since autoconf macros only set values that are null, they 
    # don't override them
    CCval=""
fi

      if test -n "$CCval" ; then
	 CC=$CCval
      fi
      ;;
esac
fi
if test -z "$USERCLINKER" -a -z "$CLINKER" ; then
    CLINKER="$CC"
fi



if test -z "$ac_echo_n" ; then
ac_echo_n=yes
if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
  # Stardent Vistra SVR4 grep lacks -e, says [e-mail].
  if (echo -n testing; echo 1,2,3) | sed s/-n/xn/ | grep xn >/dev/null; then
    ac_n= ac_c='
' ac_t='	'
  else
    ac_n=-n ac_c= ac_t=
  fi
else
  ac_n= ac_c='\c' ac_t=
fi
ac_echo_test=`echo foo 1>&1`
if test -z "$ac_echo_test" ; then
     print_error "Your sh shell does not handle the output redirection"
     print_error "1>&1 correctly.  Configure will work around this problem,"
     print_error "but you should report the problem to your vendor."
fi

fi
if test -z "$ac_echo_test" -a 1 = 1 ; then
echo $ac_n "checking whether cross-compiling""... $ac_c"
else
echo $ac_n "checking whether cross-compiling""... $ac_c" 1>&1
fi
# If we cannot run a trivial program, we must be cross compiling.
cat > conftest.c <<EOF
#include "confdefs.h"
main(){exit(0);}
EOF
eval $compile
if test -s conftest && (./conftest; exit) 2>/dev/null; then
  pac_ok=1

else
  pac_ok=0
fi
rm -fr conftest*
if test $pac_ok = 1 ; then
    cat > conftest.c <<EOF
#include "confdefs.h"
main(){exit(1);}
EOF
eval $compile
if test -s conftest && (./conftest; exit) 2>/dev/null; then
  pac_ok=0 

fi
rm -fr conftest*
    if test $pac_ok = 1 ; then
        if test -z "$ac_echo_test" -a 1 = 1 ; then
echo "$ac_t""no"
else
echo "$ac_t""no" 1>&1
fi
    else
        cross_compiling=1
        if test -z "$ac_echo_test" -a 1 = 1 ; then
echo "$ac_t""yes"
else
echo "$ac_t""yes" 1>&1
fi
    fi
else
    cross_compiling=1
    if test -z "$ac_echo_test" -a 1 = 1 ; then
echo "$ac_t""yes"
else
echo "$ac_t""yes" 1>&1
fi
fi


if test -z "$ac_echo_n" ; then
ac_echo_n=yes
if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
  # Stardent Vistra SVR4 grep lacks -e, says [e-mail].
  if (echo -n testing; echo 1,2,3) | sed s/-n/xn/ | grep xn >/dev/null; then
    ac_n= ac_c='
' ac_t='	'
  else
    ac_n=-n ac_c= ac_t=
  fi
else
  ac_n= ac_c='\c' ac_t=
fi
ac_echo_test=`echo foo 1>&1`
if test -z "$ac_echo_test" ; then
     print_error "Your sh shell does not handle the output redirection"
     print_error "1>&1 correctly.  Configure will work around this problem,"
     print_error "but you should report the problem to your vendor."
fi

fi
if test -z "$ac_echo_test" -a 1 = 1 ; then
echo $ac_n "checking that the compiler $CC runs""... $ac_c"
else
echo $ac_n "checking that the compiler $CC runs""... $ac_c" 1>&1
fi
if test ! -f confdefs.h ; then
    if test -z "$ac_echo_test" -a 1 = 1 ; then
echo "$ac_t"""!! SHELL ERROR !!""
else
echo "$ac_t"""!! SHELL ERROR !!"" 1>&1
fi
    echo "The file confdefs.h created by configure has been removed"
    echo "This may be a problem with your shell; some versions of LINUX"
    echo "have this problem.  See the Installation guide for more"
    echo "information."
    exit 1
fi
cat > conftest.c <<EOF
#include "confdefs.h"

int main() { exit(0); }
int t() { return 0; }
EOF
if eval $compile; then
  
  rm -rf conftest*
  eval "ac_cv_ccworks=yes"

else
  rm -rf conftest*
  eval "ac_cv_ccworks=no"
   
fi
rm -f conftest*

if test -z "$ac_echo_test" -a 1 = 1 ; then
echo "$ac_t""$ac_cv_ccworks"
else
echo "$ac_t""$ac_cv_ccworks" 1>&1
fi
if test $ac_cv_ccworks = "yes" ; then
    cc_works=1
else
# Generate output from failed test.  See COMPILE_CHECK code
# It really would be better if the compile tests put the output into
# a file for later analysis, like conftest.out
#
cat > conftest.c <<EOF
#include "confdefs.h"
int main() { exit(0); }
int t() { return 0; }
EOF
$CC $CFLAGS conftest.c -o conftest $LIBS
rm -f conftest* 
#
# End of output
    cc_works=0
fi

if test $cc_works = 0 ; then
    print_error "Could not compile a simple file with $CC!"
    print_error "Check for license and path restrictions on $CC."
    exit 1
fi

#
# Get the defaults if they were not set...

if test -n "$arch_IRIX"; then
   # Every version and machine under IRIX is incompatible with every other
   # version.  This block of code replaces a generic "IRIX" arch value 
   # with 
   #  IRIX_<version>_<chip>
   #  For example
   #  IRIX_5_4400 (IRIX 5.x, using MIPS 4400)
   osversion=`uname -r | sed 's/\..*//'`
   cputype=`hinv -t cpu | cut -f 3 -d' '`
   echo "osversion and cputype"
   # cputype may contain R4400, R2000A/R3000, or something else.  
   # We may eventually need to look at it.
   if test -z "$osversion" ; then
	echo "Could not determine OS version (got $osversion).  Please send"
        echo " "
	uname -a
	echo "to [e-mail]"
        exit 1
   elif test $osversion = 4 ; then
	echo "IRIX Version 4 is not supported.  Currently, IRIX 5.2 and"
	echo "IRIX 6.0 systems are available to us."
        exit 1
   elif test $osversion = 5 ; then
	true
   elif test $osversion = 6 ; then
	true
   else 
       echo "Could not recognize the version of IRIX (got $osversion)"
       echo "Wrappergen knows about versions 5 and 6; the version being"
       echo "returned from uname -r is $osversion."
       echo "Please send"
       uname -a
       hinv
       echo "to [e-mail]"
       exit 1
   fi
   echo "getting cputype..."
   OLD_ARCH=IRIX
   IRIXARCH="$ARCH_$osversion"
   # Now, handle the chip set
   cputype=`echo $cputype | sed -e 's%.*/%%' -e 's/R//' | tr A-Za-z ''`
   case $cputype in 
	3000) ;;
	4000) ;;
	4400) ;;
	4600) ;;
	8000) ;;
        *)
	echo "Unexpected IRIX/MIPS chipset $cputype.  Please send the output"
        uname -a 2>&1
        hinv 2>&1
        echo "to [e-mail]"
	echo "Wrappergen will contine and assume that the cputype is"
	echo "compatible with a MIPS 4400 processor."
        cputype=4400
	;;
   esac
   IRIXARCH="$IRIXARCH_$cputype"
   echo "IRIX-specific architecture is $IRIXARCH"
fi

# Check all of the devices first; they need to be known 
# (especially chameleon) before doing the transport layer

#
############################################################################
# In order to determine the correct compilers and options to use, 
# we sometimes need to get more detailed information on the system
# This is osversion, osvminor, and cputype.
# Currently, only IRIX uses this
############################################################################

#
# We should provide a way to specify a particular IRIX version, rather 
# than requiring the this code to figure everything out.
# In particular, there are IRIX-like systems that do not have the 'hinv'
# command.
#
if test -n "$arch_IRIX" ; then
   if test -z "$ac_echo_n" ; then
ac_echo_n=yes
if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
  # Stardent Vistra SVR4 grep lacks -e, says [e-mail].
  if (echo -n testing; echo 1,2,3) | sed s/-n/xn/ | grep xn >/dev/null; then
    ac_n= ac_c='
' ac_t='	'
  else
    ac_n=-n ac_c= ac_t=
  fi
else
  ac_n= ac_c='\c' ac_t=
fi
ac_echo_test=`echo foo 1>&1`
if test -z "$ac_echo_test" ; then
     print_error "Your sh shell does not handle the output redirection"
     print_error "1>&1 correctly.  Configure will work around this problem,"
     print_error "but you should report the problem to your vendor."
fi

fi
if test -z "$ac_echo_test" -a 1 = 1 ; then
echo $ac_n "checking for IRIX OS version""... $ac_c"
else
echo $ac_n "checking for IRIX OS version""... $ac_c" 1>&1
fi
                     osversion=`uname -r | sed 's/\..*//'`
                     osvminor=`uname -r | sed 's/[0-9]\.\([0-9]*\).*/\1/'`
   if test -z "$ac_echo_test" -a 1 = 1 ; then
echo "$ac_t""$osversion"
else
echo "$ac_t""$osversion" 1>&1
fi