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.

#! /bin/sh
progname="`echo $0 | sed 's:^\./\./:\./:'`"
print_error() {
    echo "*# $*" 2>&1 ;
    }
print_usage() {
cat <<.
Usage: ${progname} [-tcldir=TCLDIR] [-tkdir=TKDIR] [-opt=OPTFLAGS] 
                   [-cc=C_COMPILER] [-cflags=CFLAGS]
                   [-tclincdir=TCLINCDIR] [-tkincdir=TKINCDIR]

where
   TCLDIR       = Directory containing tcl.  Must have lib/libtcl.a.  Must
                  have include/tcl.h unless TCLINCDIR specified.
   TKDIR        = Directory containing tk 3.3 or later.  Must have lib/libtk.a.
                  Must have include/tk.h unless TKINCDIR specified.  May
                  be the same as TCLDIR.
   TCLINCDIR    = Directory containing include/tcl.h .
   TKINCDIR     = Directory containing include/tk.h .
   OPTFLAGS     = Flags for compiling (e.g., -g or -O)
   CFLAGS       = flags to give C compiler
   C_COMPILER   = Name of C compiler
.
}


TK_DIR=""
TCL_DIR=""

for arg
do
  case $arg in
 
   -tkdir=* | --tkdir=*)
      TK_DIR="`echo $arg|sed 's/-*tkdir=//'`"
     ;;
 
   -tcldir=* | --tcldir=*)
      TCL_DIR="`echo $arg|sed 's/-*tcldir=//'`"
     ;;

   -tkincdir=* | --tkincdir=*)
      TKINCDIR="`echo $arg|sed 's/-*tkincdir=//'`"
     ;;
 
   -tclincdir=* | --tclincdir=*)
      TCLINCDIR="`echo $arg|sed 's/-*tclincdir=//'`"
     ;;

   -opt=* | --opt=*)
      OPTFLAGS="`echo $arg|sed 's/-*opt=//'`"
     ;;

    -echo | --echo)
      set -x
      ;;
 
    -cc=* | --cc=*)
	CC=`echo $arg|sed 's/-*cc=//'`
	USERCC=1
	;;

    -cflags=* | --cflags=*)
       package="`echo $arg|sed 's/-*cflags=//'`"
       USER_CFLAGS="$package"
       CFLAGS="$CFLAGS $package" ;;

     -automountfix=* | --automountfix=*)
	AUTOMOUNTFIX="`echo $arg | sed 's/-*automountfix=//'`"
	;;

   # Standard configure args from here to the end
     # For backward compatibility, also recognize exact --exec_prefix.
     -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* | --exec=* | --exe=* | --ex=* | --e=*)
	exec_prefix=`echo $arg | sed 's/[-a-z_]*=//'` ;;
     -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- | --exec | --exe | --ex | --e)
	next_exec_prefix=yes ;;

     -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
	PREFIX=`echo $arg | sed 's/[-a-z_]*=//'` 
	prefix=$PREFIX ;;
     -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
	next_prefix=yes ;;

     -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=* | --s=*)
	srcdir=`echo $arg | sed 's/[-a-z_]*=//'` ;;
     -srcdir | --srcdir | --srcdi | --srcd | --src | --sr | --s)
	next_srcdir=yes ;;

     -datadir=* | --datadir=* )
	datadir=`echo $arg | sed 's/[-a-z_]*=//'` ;;

     -libdir=* | --libdir=* )
	libdir=`echo $arg | sed 's/[-a-z_]*=//'` ;;

     -bindir=* | --bindir=* )
	bindir=`echo $arg | sed 's/[-a-z_]*=//'` ;;

     -sbindir=* | --sbindir=* )
	sbindir=`echo $arg | sed 's/[-a-z_]*=//'` ;;

     -includedir=* | --includedir=* )
	includedir=`echo $arg | sed 's/[-a-z_]*=//'` ;;

      -u | -usage | --usage | --usag | --usa | --us | --u | -help | --help )
	print_usage >& 2
       exit 1 ;;

     -v | -verbose | --verbose | --verbos | --verbo | --verb | --ver | --ve | --v)
       verbose=yes ;;

   *)
      echo "Unrecognized argument $arg"
      exit 1
     ;;
 esac
done

trap 'rm -fr conftest* confdefs* core; exit 1' 1 3 15
trap 'rm -f confdefs*' 0

# NLS nuisances.
# These must not be set unconditionally because not all systems understand
# e.g. LANG=C (notably SCO).
if test "${LC_ALL+set}" = 'set' ; then LC_ALL=C; export LC_ALL; fi
if test "${LANG+set}"   = 'set' ; then LANG=C;   export LANG;   fi

rm -f conftest* confdefs.h
# AIX cpp loses on an empty file, so make sure it contains at least a newline.
echo > confdefs.h
compile='${CC-cc} $CFLAGS conftest.c -o conftest $LIBS >/dev/null 2>&1'

# A filename unique to this package, relative to the directory that
# configure is in, which we can look for to find out if srcdir is correct.
unique_file=nupshot.c

# Find the source files, if location was not specified.
if test -z "$srcdir"; then
  srcdirdefaulted=yes
  # Try the directory containing this script, then `..'.
  prog=$0
  confdir=`echo $prog|sed 's%/[^/][^/]*$%%'`
  test "X$confdir" = "X$prog" && confdir=.
  srcdir=$confdir
  if test ! -r $srcdir/$unique_file; then
    srcdir=..
  fi
fi
if test ! -r $srcdir/$unique_file; then
  if test x$srcdirdefaulted = xyes; then
    echo "configure: Can not find sources in \`${confdir}' or \`..'." 1>&2
  else
    echo "configure: Can not find sources in \`${srcdir}'." 1>&2
  fi
  exit 1
fi
# Preserve a srcdir of `.' to avoid automounter screwups with pwd.
# But we can't avoid them for `..', to make subdirectories work.
case $srcdir in
  .|/*|~*) ;;
  *) srcdir=`cd $srcdir; pwd` ;; # Make relative path absolute.
esac


# Save the original args to write them into config.status later.
configure_args="$*"


# A problem.  Some systems use an NFS automounter.  This can generate
# paths of the form /tmp_mnt/... . On SOME systems, that path is
# not recognized, and you need to strip off the /tmp_mnt. On others, 
# it IS recognized, so you need to leave it in.  Grumble.
# The real problem is that OTHER nodes on the same NFS system may not
# be able to find a directory based on a /tmp_mnt/... name.
#
# It is WRONG to use $PWD, since that is maintained only by the C shell,
# and if we use it, we may find the 'wrong' directory.  To test this, we
# try writing a file to the directory and then looking for it in the 
# current directory
#
# First, find out where the real source is if this is a VPATH build
if test -s nupshot.c ; then
    tmpsrcdir=.
else
    # try to determine the source dir
    tmpsrcdir=`echo $0 | sed -e 's%/configure%%' -e "s%^~/%$HOME/%"`
    if test ! -s $tmpsrcdir/nupshot.c ; then
        tmpsrcdir=""
    fi
fi

# Find the source files, if location was not specified.
if test "$srcdirdefaulted" = "yes" ; then
  srcdir=""
  # Try the directory containing this script, then `..'.
  prog=$0
  confdir=`echo $prog|sed 's%/[^/][^/]*$%%'`
  # Remove all trailing /'s 
  confdir=`echo $confdir|sed 's%[/*]$%%'`
  test "X$confdir" = "X$prog" && confdir=.
  srcdir=$confdir
  if test ! -r $srcdir/$unique_file; then
    srcdir=..
  fi
fi
if test ! -r $srcdir/$unique_file; then
  if test x$srcdirdefaulted = xyes; then
    echo "configure: Cannot find sources in \`${confdir}' or \`..'." 1>&2
  else
    echo "configure: Cannot find sources in \`${srcdir}'." 1>&2
  fi
  exit 1
fi
# Preserve a srcdir of `.' to avoid automounter screwups with pwd.
# (and preserve ./ and .//)
# But we can't avoid them for `..', to make subdirectories work.
case $srcdir in
  .|./|.//|/*|~*) ;;
  *) srcdir=`cd $srcdir; pwd` ;; # Make relative path absolute.
esac


if test "X$srcdir" != "X." -a -s $srcdir/nupshot.c ; then
    NUPSHOT_TRIAL=$srcdir
else
    NUPSHOT_TRIAL=$PWD
    if test "$NUPSHOT_TRIAL" != "" -a -d "$NUPSHOT_TRIAL" ; then 
        if test -r $NUPSHOT_TRIAL/.foo ; then
            /bin/rm -f $NUPSHOT_TRIAL/.foo
            /bin/rm -f .foo
        fi
        if test -r $NUPSHOT_TRIAL/.foo -o -r .foo ; then
	    NUPSHOT_TRIAL=
        else
	    echo "test" > $NUPSHOT_TRIAL/.foo
	    if test ! -r .foo ; then
	        NUPSHOT_TRIAL=
	    fi
	    /bin/rm -f $NUPSHOT_TRIAL/.foo
        fi
    fi
fi
if test "$NUPSHOT_TRIAL" = "" ; then
    NUPSHOT_TRIAL=`pwd | sed -e 's%/tmp_mnt/%/%g'`
fi
#
# First, test the PWD is sensible
if test ! -r $NUPSHOT_TRIAL/Makefile.in ; then
    # PWD must be messed up
    NUPSHOT_TRIAL=`pwd`
    if test ! -r $NUPSHOT_TRIAL/Makefile.in ; then
	print_error "Cannot determine the root directory!" 
        exit 1
    fi
    NUPSHOT_TRIAL=`pwd | sed -e 's%/tmp_mnt/%/%g'`
    if test ! -d $NUPSHOT_TRIAL ; then 
        print_error "Warning: your default path uses the automounter; this may"
        print_error "cause some problems if you use other NFS-connected systems."
        NUPSHOT_TRIAL=`pwd`
    fi
fi
if test -z "$NUPSHOT_TRIAL" ; then
    NUPSHOT_TRIAL=`pwd | sed -e 's%/tmp_mnt/%/%g'`
    if test ! -d $NUPSHOT_TRIAL ; then 
        print_error "Warning: your default path uses the automounter; this may"
        print_error "cause some problems if you use other NFS-connected systems."
        NUPSHOT_TRIAL=`pwd`
    fi
fi
NUPSHOT_HOME=$NUPSHOT_TRIAL


CC=${CC-cc}

for hdr in unistd.h
do
trhdr=HAVE_`echo $hdr | tr '[a-z]./' '[A-Z]__'`
echo checking for ${hdr}
echo checking how to run the C preprocessor
if test -z "$CPP"; then
  # This must be in double quotes, not single quotes, because CPP may get
  # substituted into the Makefile and ``${CC-cc}'' will simply confuse
  # make.  It must be expanded now.
  CPP="${CC-cc} -E"
  cat > conftest.c <<EOF
#include "confdefs.h"
#include <stdio.h>
Syntax Error
EOF
err=`eval "($CPP conftest.c >/dev/null) 2>&1"`
if test -z "$err"; then
  :
else
  rm -rf conftest*
  CPP=/lib/cpp
fi
rm -f conftest*
fi
test ".${verbose}" != "." && echo "	setting CPP to $CPP"

cat > conftest.c <<EOF
#include "confdefs.h"
#include <${hdr}>
EOF
err=`eval "($CPP conftest.c >/dev/null) 2>&1"`
if test -z "$err"; then
  rm -rf conftest*
  
{
test -n "$verbose" && \
echo "	defining ${trhdr}"
echo "#define" ${trhdr} 1 >> confdefs.h
DEFS="$DEFS -D${trhdr}=1"
}


fi
rm -f conftest*
done


# Make support for VPATH
MAKE=${MAKE:-"make"}


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 virtual path format""... $ac_c"
else
echo $ac_n "checking for virtual path format""... $ac_c" 1>&1
fi
rm -rf conftest*
mkdir conftestdir
cat >conftestdir/a.c <<EOF
A sample file
EOF
cat > conftest <<EOF
all: a.o
VPATH=.:conftestdir
.c.o:
	@echo \$<
EOF
ac_out=`$MAKE -f conftest 2>&1 | grep 'conftestdir/a.c'`
if test -n "$ac_out" ; then 
    if test -z "$ac_echo_test" -a 1 = 1 ; then
echo "$ac_t""VPATH"
else
echo "$ac_t""VPATH" 1>&1
fi
    VPATH='VPATH=.:$(srcdir)'
else
    rm -f conftest
    cat > conftest <<EOF
all: a.o
.PATH: . conftestdir
.c.o:
	@echo \$<
EOF
    ac_out=`$MAKE -f conftest 2>&1 | grep 'conftestdir/a.c'`
    if test -n "$ac_out" ; then 
        if test -z "$ac_echo_test" -a 1 = 1 ; then
echo "$ac_t"".PATH"
else
echo "$ac_t"".PATH" 1>&1
fi
        VPATH='.PATH: . $(srcdir)'
    else
	if test -z "$ac_echo_test" -a 1 = 1 ; then
echo "$ac_t""neither VPATH nor .PATH works"
else
echo "$ac_t""neither VPATH nor .PATH works" 1>&1
fi
    fi
fi
rm -rf conftest*


#--------------------------------------------------------------------
#	Include sys/select.h if it exists and if it supplies things
#	that appear to be useful and aren't already in sys/types.h.
#	This appears to be true only on the RS/6000 under AIX.  Some
#	systems like OSF/1 have a sys/select.h that's of no use, and
#	other systems like SCO UNIX have a sys/select.h that's
#	pernicious.  If "fd_set" isn't defined anywhere then set a
#	special flag.
#--------------------------------------------------------------------

echo checking for sys/select.h
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 fd_set""... $ac_c"
else
echo $ac_n "checking for fd_set""... $ac_c" 1>&1
fi
if test ! -f confdefs.h ; then
    if test -z "$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"
#include <sys/types.h>
int main() { exit(0); }
int t() { fd_set readMask, writeMask; }
EOF
if eval $compile; then
  if test -z "$ac_echo_test" -a 1 = 1 ; then
echo "$ac_t""yes"
else
echo "$ac_t""yes" 1>&1
fi
  :
else
  expandcompile=`echo "$compile" | sed -e 's/>.*//'`
  eval echo "configure:$expandcompile" >> config.log
  echo "configure: failed program was:" >>config.log
  cat confdefs.h >> config.log
  cat conftest.c >> config.log
  if test -s conftest.out ; then cat conftest.out >> config.log 
  else
      ${CC-cc} $CFLAGS conftest.c -o conftest $LDFLAGS $LIBS >> config.log 2>&1
  fi
  echo '#include "confdefs.h"
#include <sys/select.h>' > conftest.c
eval "$CPP conftest.c > conftest.out 2>&1"
if egrep "fd_mask" conftest.out >/dev/null 2>&1; then
  rm -rf conftest*
  
{
test -n "$verbose" && \
echo "	defining HAVE_SYS_SELECT_H"
echo "#define" HAVE_SYS_SELECT_H 1 >> confdefs.h
DEFS="$DEFS -DHAVE_SYS_SELECT_H=1"
}


else
  rm -rf conftest*
  
{
test -n "$verbose" && \
echo "	defining NO_FD_SET"
echo "#define" NO_FD_SET 1 >> confdefs.h
DEFS="$DEFS -DNO_FD_SET=1"
}

fi
rm -f conftest*

    if test -z "$ac_echo_test" -a 1 = 1 ; then
echo "$ac_t""no"
else
echo "$ac_t""no" 1>&1
fi
    expandcompile=`echo "$compile" | sed -e 's/>.*//'`
    eval echo "configure:$expandcompile" >> config.log
    echo "configure: failed program was:" >>config.log
    cat confdefs.h >> config.log
    cat conftest.c >> config.log
    if test -s conftest.out ; then cat conftest.out >> config.log 
    else
      ${CC-cc} $CFLAGS conftest.c -o conftest $LDFLAGS $LIBS >> config.log 2>&1
    fi