configure.in

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.

dnl	This file is an input file used by the GNU "autoconf" program to
dnl	generate the file "configure", which is run during Tk installation
dnl	to configure the system for the local environment.
[#! 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]

AC_PREPARE(nupshot.c)

# 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
PAC_FIXUP_SRCDIR

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

AC_SUBST(NUPSHOT_HOME)
CC=${CC-cc}
AC_SUBST(CC)
AC_HAVE_HEADERS(unistd.h)

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

#--------------------------------------------------------------------
#	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
AC_COMPILE_CHECK(fd_set, [#include <sys/types.h>],
	[fd_set readMask, writeMask;], ,
	AC_HEADER_EGREP(fd_mask, sys/select.h, AC_DEFINE(HAVE_SYS_SELECT_H),
		AC_DEFINE(NO_FD_SET)))

#--------------------------------------------------------------------
#	Supply a substitute for stdlib.h if it doesn't define strtol,
#	strtoul, or strtod (which it doesn't in some versions of SunOS).
#--------------------------------------------------------------------

echo checking for proper stdlib.h
AC_HEADER_EGREP(strtol, stdlib.h, tk_stdlib=1, tk_stdlib=0)
AC_HEADER_EGREP(strtoul, stdlib.h, , tk_stdlib=0)
AC_HEADER_EGREP(strtod, stdlib.h, , tk_stdlib=0)
if test $tk_stdlib = 0; then
    AC_DEFINE(NO_STDLIB_H)
fi

#--------------------------------------------------------------------
#	Check for various typedefs and provide substitutes if
#	they don't exist.
#--------------------------------------------------------------------


#--------------------------------------------------------------------
#	Locate the X11 header files and the X11 library archive.  Try
#	the ac_find_x macro first, but if it doesn't find the X stuff
#	(e.g. because there's no xmkmf program) then check through
#	a list of possible directories.
#--------------------------------------------------------------------


AC_PROGRAM_CHECK(tk_ok, xmkmf, 1, 0)
if test $tk_ok = 1; then
    AC_FIND_X
fi
if test "$XINCLUDE_DIR" != ""; then
    x_includes="$XINCLUDE_DIR"
fi
if test "$x_includes" = /usr/include; then
    # no special path needed
    XINCLUDES=""
elif test "$x_includes" != ""; then
    XINCLUDES=" -I$x_includes"
else
    echo checking for X11 header files
    # no special path needed
    XINCLUDES=""
    AC_TEST_CPP([#include <X11/Intrinsic.h>], , XINCLUDES="nope")
    if test "$XINCLUDES" = nope; then
        dirs="/usr/unsupported/include /usr/local/include /usr/X386/include /usr/include/X11R4 /usr/X11R5/include /usr/include/X11R5 /usr/openwin/include /usr/X11/include"
        for i in $dirs ; do
	    if test -r $i/X11/Intrinsic.h; then
	        XINCLUDES=" -I$i"
	    fi
        done
    fi
fi
if test "$XINCLUDES" = nope; then
  echo "Warning:  couldn't find any X11 include files."
  # no include files found
  XINCLUDES=""
fi
AC_SUBST(XINCLUDES)

if test "$XLIBRARY_DIR" != ""; then
    x_libraries="$XLIBRARY_DIR"
fi
if test "$x_libraries" = /usr/lib; then
    XLIBSW=-lX11
elif test "$x_libraries" != ""; then
    XLIBSW="-L$x_libraries -lX11"
else
    echo "checking for X11 library archive"
    AC_HAVE_LIBRARY(X11, XLIBSW="-lX11", XLIBSW=nope)
    if test "$XLIBSW" = nope; then
	dirs="/usr/unsupported/lib /usr/local/lib /usr/X386/lib /usr/lib/X11R4 /usr/X11R5/lib /usr/lib/X11R5 /usr/openwin/lib /usr/X11/lib"
	for i in $dirs ; do
	    if test -r $i/libX11.a; then
		XLIBSW="-L$i -lX11"
	    fi
	done
    fi
fi
if test "$XLIBSW" = nope ; then
    AC_HAVE_LIBRARY(Xwindow, XLIBSW=-lXwindow)
fi
if test "$XLIBSW" = nope ; then
    echo "Warning:  couldn't find the X11 library archive.  Using -lX11."
    XLIBSW=-lX11
fi
AC_SUBST(XLIBSW)

#--------------------------------------------------------------------
#	Check for the existence of various libraries.  The order here
#	is important, so that then end up in the right order in the
#	command line generated by Make.
#--------------------------------------------------------------------

AC_HAVE_LIBRARY(Xbsd, [LIBS="$LIBS -lXbsd"])
AC_HAVE_LIBRARY(socket, [LIBS="$LIBS -lsocket"])
AC_HAVE_LIBRARY(nsl, [LIBS="$LIBS -lnsl"])

# Look for Tcl
if test -z "$TCL_DIR" ; then
   PAC_FIND_TCL
fi
if test -z "$TCL_DIR" ; then 
    print_error "Could not find libraries for TCL (needed for Upshot)"
    print_error "Please specify them with the -tcldir=path option."
    print_error "Aborting build of nupshot"
    exit 1
fi
if test -z "$TK_DIR" ; then 
    print_error "Could not find libraries for TK (needed for Upshot)"
    print_error "Please specify them with the -tkdir=path option."
    print_error "Aborting build of nupshot"
    exit 1
fi
PAC_TK_VERSION
if test "$TK_VERSION" != 3.6 ; then
    print_error "This version of nupshot requires tk 3.6  The version in"
    print_error "$TK_DIR seems to be version $TK_VERSION."
    print_error "Aborting build of nupshot"
    exit 1
fi
#
# Some damaged implementations of tk (SGI's is known to be one)
# require an ADDITIONAL library, which may be in the TK lib directory OR
# in the X directory.  This library is libXpm, it contains routines
# like Xpm... which, as should be expected, are undocumented.
# 
if test -s $TK_DIR/lib/libXpm.a ; then
    XPMLIB=-lXpm
else
    AC_HAVE_LIBRARY(Xpm, XPMLIB="-lXpm")
fi
if test -z "$TKINCDIR" -a -s $TK_DIR/include/tk.h ; then
    TKINCDIR=$TK_DIR
fi
if test -z "$TCLINCDIR" -a -s $TCL_DIR/include/tcl.h ; then
    TCLINCDIR=$TCL_DIR
fi
AC_SUBST(XPMLIB)
AC_SUBST(TCL_DIR)
AC_SUBST(TK_DIR)
AC_SUBST(TCLINCDIR)
AC_SUBST(TKINCDIR)

AC_SUBST(USER_CFLAGS)
AC_SUBST(OPTFLAGS)

AC_OUTPUT(Makefile)