#! /usr/bin/env bash
#
# Copyright (c) 2004-2009 The Trustees of Indiana University and Indiana
#                         University Research and Technology
#                         Corporation.  All rights reserved.
# Copyright (c) 2004-2005 The University of Tennessee and The University
#                         of Tennessee Research Foundation.  All rights
#                         reserved.
# Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
#                         University of Stuttgart.  All rights reserved.
# Copyright (c) 2004-2005 The Regents of the University of California.
#                         All rights reserved.
# Copyright (c) 2007-2010 Cisco Systems, Inc.  All rights reserved.
# $COPYRIGHT$
# 
# Additional copyrights may follow
# 
# $HEADER$
#
# This script is run on developer copies of Open MPI -- *not*
# distribution tarballs.

#set -x

# Just to make sure that local setup doesn't interfere with what we're
# doing here in this script
unalias test sort cut xargs echo 2> /dev/null
unset GREP_COLORS

# Solaris patch is not compatible with Linux patch
uname_s=`uname -s`
if test "$uname_s" = "SunOS" ; then
    patch="gpatch"
else
    patch="patch"
fi

##############################################################################
#
# User-definable parameters (search path and minimum supported versions)
# 
# Note: use ';' to separate parameters
##############################################################################

ompi_aclocal_search="aclocal"
if test ! -z "$ACLOCAL"; then
    ompi_aclocal_search="$ACLOCAL"
fi
ompi_autoheader_search="autoheader"
if test ! -z "$AUTOHEADER"; then
    ompi_autoheader_search="$AUTOHEADER"
fi
ompi_autoconf_search="autoconf"
if test ! -z "$AUTOCONF"; then
    ompi_autoconf_search="$AUTOCONF"
fi
ompi_autom4te_search="autom4te"
if test ! -z "$AUTOM4TE"; then
    ompi_autom4te_search="$AUTOM4TE"
fi
ompi_libtoolize_search="libtoolize;glibtoolize"
if test ! -z "$LIBTOOLIZE"; then
    ompi_libtoolize_search="$LIBTOOLIZE"
fi
ompi_automake_search="automake"
if test ! -z "$AUTOMAKE"; then
    ompi_automake_search="$AUTOMAKE"
fi

ompi_automake_version="1.9.6"
ompi_autoconf_version="2.59"
ompi_libtool_version="1.5.22"


##############################################################################
#
# Global variables - should not need to modify defaults
#
##############################################################################

ompi_aclocal_version="$ompi_automake_version"
ompi_autoheader_version="$ompi_autoconf_version"
ompi_libtoolize_version="$ompi_libtool_version"
ompi_autom4te_version="$ompi_autoconf_version"

# program names to execute
ompi_aclocal=""
ompi_autoheader=""
ompi_autoconf=""
ompi_libtoolize=""
ompi_automake=""

mca_no_configure_components_file="config/mca_no_configure_components.m4"
mca_no_config_list_file="mca_no_config_list"
mca_no_config_env_file="mca_no_config_env"
mca_m4_include_file="config/mca_m4_config_include.m4"
mca_m4_config_env_file="mca_m4_config_env"

ext_no_configure_components_file="config/ext_no_configure_components.m4"
ext_no_config_list_file="ext_no_config_list"
ext_no_config_env_file="ext_no_config_env"
ext_m4_include_file="config/ext_m4_config_include.m4"
ext_m4_config_env_file="ext_m4_config_env"

autogen_subdir_file="autogen.subdirs"
topdir_file="opal/include/opal_config_bottom.h"

if echo a | grep -E '(a|b)' >/dev/null 2>&1; then
  egrep='grep -E'
else
  egrep=egrep
fi


############################################################################
#
# Version check - does major,minor,release check (hopefully ignoring
# beta et al)
#
# INPUT:
#    - minimum version allowable
#    - version we found
#
# OUTPUT:
#    - 0 version is ok
#    - 1 version is not ok
#
# SIDE EFFECTS:
#    none
#
##############################################################################
check_version() {
    local min_version="$1"
    local version="$2"

    min_version=`echo $min_version | sed -e 's/[A-Za-z]//g'`
    version=`echo $version | sed -e 's/[A-Za-z]//g'`

    local min_major_version="`echo $min_version | cut -f1 -d.`"
    local min_minor_version="`echo $min_version | cut -f2 -d.`"
    local min_release_version="`echo $min_version | cut -f3 -d.`"
    if test "$min_release_version" = "" ; then
        min_release_version=0
    fi

    local major_version="`echo $version | cut -f1 -d.`"
    local minor_version="`echo $version | cut -f2 -d.`"
    local release_version="`echo $version | cut -f3 -d.`"
    if test "$release_version" = "" ; then
        release_version=0
    fi

    if test $min_major_version -lt $major_version ; then
        return 0
    elif test $min_major_version -gt $major_version ; then
        return 1
    fi

    if test $min_minor_version -lt $minor_version ; then
        return 0
    elif test $min_minor_version -gt $minor_version ; then
        return 1
    fi

    if test $min_release_version -gt $release_version ; then
        return 1
    fi

    return 0
}


##############################################################################
#
# find app - find a version of the given application that is new
# enough for use
#
# INPUT:
#    - name of application (eg aclocal)
#
# OUTPUT:
#    none
#
# SIDE EFFECTS:
#    - sets application_name variable to working executable name
#    - aborts on error finding application
#
##############################################################################
find_app() {
    local app_name="$1"

    local version="0.0.0"
    local min_version="99.99.99"
    local found=0
    local versions_found=""
    local tmpIFS=$IFS

    eval "min_version=\"\$ompi_${app_name}_version\""
    eval "search_path=\"\$ompi_${app_name}_search\""
    IFS=";"
    for i in $search_path ; do
        IFS="$tmpIFS"
        version="`${i} --version 2>&1`"
        if test "$?" != 0 ; then
            IFS=";"
            continue
        fi

        version="`echo $version | cut -f2 -d')'`"
        version="`echo $version | cut -f1 -d' '`"

        if check_version $min_version $version ; then
            eval "ompi_${app_name}=\"${i}\""
            eval "ompi_${app_name}_found_version=$version"
            found=1
            break
        fi
        versions_found="${versions_found} ${version}"
    done

    IFS="$tmpIFS"

    if test "$found" = "0" ; then
	cat <<EOF
I could not find a recent enough copy of ${app_name}.
Need at least $min_version but found $versions_found in $search_path.
I am gonna abort.  :-(

Please make sure you are using at least the following versions of the
GNU tools:

GNU Autoconf $ompi_autoconf_version
GNU Automake $ompi_automake_version
    NOTE: You may need Automake 1.8.5 (or higher) in order to run
    "make dist" successfully
GNU Libtool  $ompi_libtool_version

EOF
        exit 1
    fi
}


##############################################################################
#
# run_and_check - run the right GNU tool, printing warning on failure
#
# INPUT:
#    - name of application (eg aclocal)
#    - program arguments
#
# OUTPUT:
#    none
#
# SIDE EFFECTS:
#    - aborts on error running application
#
##############################################################################
run_and_check() {
    local rac_progs="$*"
    echo "$indent[Running] $rac_progs"
    eval $rac_progs
    if test "$?" != 0; then
	cat <<EOF

-------------------------------------------------------------------------
It seems that the execution of "$rac_progs" has failed.  See above for
the specific error message that caused it to abort.
-------------------------------------------------------------------------

EOF
	exit 1
    fi
}

##############################################################################
#
# find_and_delete -  look for standard files in a number of common places
#     (e.g., ./config.guess, config/config.guess, dist/config.guess), and
#     delete it.  If it's not found there, look for AC_CONFIG_AUX_DIR in
#     the configure.in script and try there.  If it's not there, oh well.
#
# INPUT:
#    - file to delete
#
# OUTPUT:
#    none
#
# SIDE EFFECTS:
#    - files may disappear
#
##############################################################################
find_and_delete() {
    local fad_file="$1"

    local fad_cfile
    local auxdir

    # Look for the file in "standard" places

    if test -f $fad_file; then
	rm -f $fad_file
    elif test -f config/$fad_file; then
	rm -f config/$fad_file
    elif test -f config/m4/$fad_file; then
	rm -f config/m4/$fad_file
    elif test -f dist/$fad_file; then
	rm -f dist/$fad_file
    else

	# Didn't find it -- look for an AC_CONFIG_AUX_DIR line in
	# configure.[in|ac]

	if test -f configure.in; then
	    fad_cfile=configure.in
	elif test -f configure.ac; then
	    fad_cfile=configure.ac
	else
	    echo "--> Errr... there's no configure.in or configure.ac file!"
	fi
	if test -n "$fad_cfile"; then
	    auxdir="`grep AC_CONFIG_AUX_DIR $fad_cfile | $egrep -v '^dnl' | cut -d\( -f 2 | cut -d\) -f 1`"
	fi
	if test -f "$auxdir/$fad_file"; then
	    rm -f "$auxdir/$fad_file"
	fi
    fi
}


##############################################################################
#
# run_gnu_tools - run the GNU tools in a given directory
#
# INPUT:
#    - OMPI top directory
#
# OUTPUT:
#    none
#
# SIDE EFFECTS:
#    - assumes that the directory is ready to have the GNU tools run
#      in it (i.e., there's some form of configure.*)
#    - may preprocess the directory before running the GNU tools
#      (e.g., generale Makefile.am's from configure.params, etc.)
#
##############################################################################
run_gnu_tools() {
    rgt_ompi_topdir="$1"

    # Sanity check to ensure that there's a configure.in or
    # configure.ac file here, or if there's a configure.params
    # file and we need to run make_configure.pl.

    if test -f configure.params -a -f configure.stub -a \
	-x "$rgt_ompi_topdir/config/mca_make_configure.pl"; then
        cat <<EOF
*** Found configure.stub
*** Running mca_make_configure.pl
EOF
	"$rgt_ompi_topdir/config/mca_make_configure.pl" \
	    --ompidir "$rgt_ompi_topdir" \
	    --componentdir "`pwd`"
        if test "$?" != "0"; then
           echo "*** autogen.sh failed to complete!"
           exit 1
        fi

        # If we need to make a version header template file, do so

        rgt_abs_dir="`pwd`"
        rgt_component_name=`basename "$rgt_abs_dir"`
        rgt_component_type=`dirname "$rgt_abs_dir"`
        rgt_component_type=`basename "$rgt_component_type"`
        rgt_ver_header="$rgt_abs_dir/$rgt_component_type-$rgt_component_name-version.h"
        rgt_ver_header_base=`basename "$rgt_ver_header"`
        make_version_header_template "$rgt_ver_header_base" "$rgt_component_type" "$rgt_component_name"

	happy=1
	file=configure.ac
    elif test -f configure.in; then
	happy=1
	file=configure.in
    elif test -f configure.ac; then
	happy=1
	file=configure.ac
    else
        cat <<EOF
--> Err... there's no configure.in or configure.ac file in this directory
--> Confused; aborting in despair
EOF
	exit 1
    fi
    unset happy

    # Find and delete the GNU helper script files

    find_and_delete config.guess
    find_and_delete config.sub
    find_and_delete depcomp
    find_and_delete compile
    find_and_delete install-sh
    find_and_delete ltconfig
    find_and_delete ltmain.sh
    find_and_delete libtool.m4
    find_and_delete ltdl.m4
    find_and_delete ltoptions.m4
    find_and_delete ltsugar.m4
    find_and_delete ltversion.m4
    find_and_delete lt~obsolete.m4
    find_and_delete missing
    find_and_delete mkinstalldirs
    find_and_delete libtool
    find_and_delete aclocal.m4

    # Run the GNU tools

    echo "*** Running GNU tools"

    if test -f $topdir_file ; then
	cd config
	run_and_check $ompi_autom4te --language=m4sh ompi_get_version.m4sh -o ompi_get_version.sh
	cd ..
    fi

    # We only need the libltdl stuff for the top-level
    # configure, not any of the MCA components.

    if test -f $topdir_file ; then
	rm -rf libltdl opal/libltdl opal/ltdl.h
	run_and_check $ompi_libtoolize --automake --copy --ltdl
        if test -d libltdl; then
             echo "   -- Moving libltdl to opal/"
             mv libltdl opal
        fi
        if check_version "1.10.0" $ompi_automake_found_version ; then
            ver=`grep '^am__api_version' opal/libltdl/configure | cut -f2 -d=`
            # eat single quotes
            eval "ver=$ver"
            if ! check_version "1.9.7" $ver ; then
                indent="   "
                echo "** Updating Automake version in libltdl package"
                pushd opal/libltdl > /dev/null 2>&1
                run_and_check $ompi_aclocal
                run_and_check $ompi_automake
                chmod u+w configure # Need this for FreeBSD.
                run_and_check $ompi_autoconf
                popd > /dev/null 2>&1
                unset indent
            fi
        fi
        if test ! -r opal/libltdl/ltdl.h; then
            cat <<EOF
$ompi_libtoolize --ltdl apparently failed to install libltdl.
Please check that you have the libltdl development files installed.
EOF
            exit 1
        fi

	echo "** Adjusting libltdl for OMPI :-("

       echo "   ++ patching PGI -tp bug in ltmain.sh"
       # Patch ltmain.sh error for PGI -tp flag.  Redirect stderr to
       # /dev/null because this patch is only necessary for some versions of
       # Libtool (e.g., 2.2.6b); it'll [rightfully] fail if you have a new
       # enough Libtool that dosn't need this patch.  But don't alarm the
       # user and make them think that autogen failed if this patch fails --
       # make the errors be silent.
       $patch -N -p0 < config/ltmain_pgi_tp.diff >/dev/null 2>&1
       if test ! $? -eq 0 ; then
           echo "      -- your libtool doesn't need this! yay!"
       fi
       rm -f config/ltmain.sh.rej

	echo "   ++ patching for argz bugfix in libtool 1.5"
	cd opal/libltdl
        if test "`grep 'while ((before >= *pargz) && (before[-1] != LT_EOS_CHAR))' ltdl.c`" != ""; then
            patch -N -p0 <<EOF
--- ltdl.c.old  2003-11-26 16:42:17.000000000 -0500
+++ ltdl.c      2003-12-03 17:06:27.000000000 -0500
@@ -682,7 +682,7 @@
   /* This probably indicates a programmer error, but to preserve
      semantics, scan back to the start of an entry if BEFORE points
      into the middle of it.  */
-  while ((before >= *pargz) && (before[-1] != LT_EOS_CHAR))
+  while ((before > *pargz) && (before[-1] != LT_EOS_CHAR))
     --before;

   {
EOF
#'
            rm -f ltdl.c.orig
            rm -f ltdl.c.rej
        else
            echo "      -- your libtool doesn't need this! yay!"
        fi
	cd ../..
        echo "   ++ patching 64-bit OS X bug in ltmain.sh"
        if test ! -z "`grep otool config/ltmain.sh`" -a \
              -z "`grep otool64 config/ltmain.sh`"; then
            patch -N -p0 < config/ltmain_otool.diff
            rm -f config/ltmain.sh.orig
            rm -f config/ltmain.sh.rej
        else
            echo "      -- your libtool doesn't need this! yay!"
        fi

        echo "   ++ RTLD_GLOBAL in libltdl"
        if test -r opal/libltdl/loaders/dlopen.c && \
            test ! -z "`grep 'filename, LT_LAZY_OR_NOW' opal/libltdl/loaders/dlopen.c`"; then
            patch -N -p0 < config/libltdl_dlopen_global.diff
            rm -f opal/libltdl/loaders/dlopen.c.rej
        else
            echo "      -- your libltdl doesn't need this! yay!"
        fi
        if grep 'chmod -w \.' configure ; then
            echo "   ++ patching configure for broken -c/-o compiler test"
            sed -e 's/chmod -w \./#OMPI\/MPI FIX: chmod -w ./' \
                configure > configure.new
            mv configure.new configure
            chmod a+x configure
        fi
        echo "   ++ preopen error masking ib libltdl"
        if test -r opal/libltdl/loaders/preopen.c; then
            patch -N -p0 < config/libltdl-preopen-error.diff
            rm -f opal/libltdl/loaders/preopen.c.rej
        fi

        # See
        # http://lists.gnu.org/archive/html/bug-libtool/2008-05/msg00045.html.
        # Note that this issue was fixed in LT 2.2.6, so don't patch if
        # you have a version after that (because this patch changes
        # the timestamp on opal/libltdl/m4/libtool.m4, which should be
        # avoided if possible...).
        echo "   ++ patching for ifort (LT 2.2.0-4)"
        patched=0
        if check_version "2.1.9999" $ompi_libtoolize_found_version; then
            if ! check_version "2.2.6" $ompi_libtoolize_found_version; then
                cd opal/libltdl/m4
                patch -N -p0 < ../../../config/lt224-icc.diff > /dev/null 2>&1
                rm -f libtool.m4.orig
                rm -f libtool.m4.rej

                # We must touch aclocal.m4 here, because it must be
                # newer than libtool.m4, otherwise a whole bunch of
                # Automake-mandated timestamps may be off (depending
                # on the resolution of timestamps on your
                # filesystem).
                touch -r ../aclocal.m4 libtool.m4

                cd ../../..
                patched=1
            fi
        fi
        if test "$patched" != "1"; then
            echo "     -- your libltdl doesn't need this! yay!"
        fi
    else
	run_and_check $ompi_libtoolize --automake --copy
    fi

    if test -f $topdir_file; then 
        flags=
        if test "$want_orte" = "1"; then
            flags="$flags -I orte/config"
        fi
        if test "$want_ompi" = "1"; then
            flags="$flags -I ompi/config"
        fi
        run_and_check $ompi_aclocal -I config -I opal/config $flags
    else
        run_and_check $ompi_aclocal
    fi

    if test "`grep AC_CONFIG_HEADER $file`" != "" -o \
	"`grep AM_CONFIG_HEADER $file`" != ""; then
	run_and_check $ompi_autoheader
    fi

    # We only need to patch the top-level aclocal.m4 for libtool stuff
    # because this only affects creating C++ libraries (with pathCC).
    # This must be done before we run autoconf.

    if test -f $topdir_file; then 
        echo "** Adjusting libtool for OMPI :-("
        if ! check_version "2.0.0" $ompi_libtoolize_found_version ; then
            echo "   ++ patching for pathscale multi-line output (LT 1.5.x)"
            patch -N -p0 < config/lt1522-pathCC.diff > /dev/null 2>&1
        else
            echo "   ++ patching for pathscale multi-line output (LT 2.x)"
            patch -N -p0 < config/lt21a-pathCC.diff > /dev/null 2>&1
        fi
        rm -f aclocal.m4.orig
        rm -f aclocal.m4.rej

        # See note above about lt224-icc.diff
        echo "   ++ patching for ifort (LT 2.2.0-4)"
        patched=0
        if check_version "2.1.9999" $ompi_libtoolize_found_version; then
            if ! check_version "2.2.6" $ompi_libtoolize_found_version; then
                cd config
                patch -N -p0 < lt224-icc.diff > /dev/null 2>&1
                rm -f libtool.m4.orig
                rm -f libtool.m4.rej
                # We'll touch aclocal.m4 below (see comment below).
                cd ..
                patched=1
            fi
        fi
        if test "$patched" != "1"; then
            echo "     -- your libltdl doesn't need this! yay!"
        fi

        # See http://git.savannah.gnu.org/cgit/libtool.git/commit/?id=v2.2.6-201-g519bf91
        # 
        # Note that this issue was fixed in LT 2.2.8, so don't patch if
        # you have a version after that
        echo "   ++ patching for IBM xlf (LT < 2.2.8)"
        patched=0
        if check_version "2.1.9999" $ompi_libtoolize_found_version; then
            if ! check_version "2.2.8" $ompi_libtoolize_found_version; then
                cd config
                patch -N -p0 < libtool-ibm-xlf.diff > /dev/null 2>&1
                rm -f libtool.m4.orig
                rm -f libtool.m4.rej
                # We'll touch aclocal.m4 below (see comment below).
                cd ..
                patched=1
            fi
        fi
        if test "$patched" != "1"; then
            echo "     -- your libtool doesn't need this! yay!"
        fi

        # Libtool 1.5.2x and 2.1x automatically link in the "Cstd" STL library
        # when using the Sun compilers on Linux or Solaris, even if the
        # application does not use the STL (as of Feb 2008, Open MPI does not
        # use any C++ STL). The problem is that Solaris has two different STL
        # libraries: Cstd and stlport. Having Libtool choose that OMPI (and its
        # wrapper compilers) use Cstd is problematic for users who want to
        # compile their MPI applications with the other STL library. So we
        # currently hack aclocal's LT macros to *not* add the Cstd library to
        # any of OMPI's CXXFLAGS; the OMPI wrapper compilers can then therefore
        # be used with any STL library -- it's the user's choice.

        echo "   ++ patching to remove solaris Cstd"
        sed -e 's/-lCstd -lCrun//' \
            -e 's/-library=Cstd -library=Crun//' \
            aclocal.m4 > aclocal.m4.new
        cp aclocal.m4.new aclocal.m4
        rm -f aclocal.m4.new

        # This patch fixes a bug in Libtool's detection of the Sun Studio
        # Fortran compiler. See the below e-mail thread for more details:
        #   http://www.open-mpi.org/community/lists/devel/2008/11/4920.php
        echo "   ++ patching for Sun Studio Fortran compilers"
        patch -N -p0 < config/lt-sun-fortran.diff > /dev/null 2>&1
        rm -f libtool.m4.orig
        rm -f libtool.m4.rej
        # We must touch aclocal.m4 here, because it must be newer than
        # libtool.m4, otherwise a whole bunch of Automake-mandated
        # timestamps may be off (depending on the resolution of
        # timestamps on your filesystem).
        touch -r aclocal.m4 config/libtool.m4
    fi

    # Ensure libtool.m4 is very old so that make does not rebuild aclocal.m4
    touch -t 197001010000.00 config/libtool.m4

    run_and_check $ompi_autoconf

    run_and_check $ompi_automake --foreign -a --copy --include-deps

    # Ugh.  LT <=2.2.6b need to be patched for the PGI 10.0 fortran
    # compiler name (pgfortran).  The following comes from the
    # upstream LT patches:
    # http://lists.gnu.org/archive/html/libtool-patches/2009-11/msg00012.html
    # http://lists.gnu.org/archive/html/bug-libtool/2009-11/msg00045.html
    # Note that that patch is part of Libtool (which is not in this
    # OMPI source tree); we can't fix it.  So all we can do is patch
    # the resulting configure script.  :-(
    echo "  ++ Patching configure for Libtool PGI 10 fortran compiler name"
    rm -f configure.patched
    sed -e 's/gfortran g95 xlf95 f95 fort ifort ifc efc pgf95 lf95 ftn/gfortran g95 xlf95 f95 fort ifort ifc efc pgfortran pgf95 lf95 ftn/' \
        -e 's/pgcc\* | pgf77\* | pgf90\* | pgf95\*)/pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*)/' \
        -e 's/pgf77\* | pgf90\* | pgf95\*)/pgf77* | pgf90* | pgf95* | pgfortran*)/' \
        configure > configure.patched
    cp configure.patched configure
    rm -f configure.patched

    # Similar issue as above -- the PGI 10 version number broke <=LT
    # 2.2.6b's version number checking regexps.  Again, we can't fix
    # the Libtool install; all we can do is patch the resulting
    # configure script.  :-( The following comes from the upstream
    # patch:
    # http://lists.gnu.org/archive/html/libtool-patches/2009-11/msg00016.html
    echo "  ++ Patching configure for Libtool PGI version number regexps"
    rm -f configure.patched
    sed -e 's/\*pgCC\\ \[1-5\]\* | \*pgcpp\\ \[1-5\]\*/*pgCC\\ [1-5]\.* | *pgcpp\\ [1-5]\.*/' configure > configure.patched
    cp configure.patched configure
    rm -f configure.patched

    # This only needs to happen in the top-level directory
    if test -x config/modify-configure-for-sun-fortran.pl; then
        echo "  ++ Modifying configure for Sun Studio Fortran compilers"
        config/modify-configure-for-sun-fortran.pl
    fi
}



##############################################################################
#
# run_no_configure_component
#   Prepares the non-configure component
#
# INPUT:
#    - OMPI top directory
#
# OUTPUT:
#    none
#
# SIDE EFFECTS:
#
##############################################################################
run_no_configure_component() {
    noconf_dir="$1"
    noconf_ompi_topdir="$2"
    noconf_project="$3"
    noconf_framework="$4"
    noconf_component="$5"

    # Write out to two files (they're merged at the end)
    if test $6 = "mca" ; then
        noconf_list_file="$noconf_ompi_topdir/$mca_no_config_list_file"
        noconf_env_file="$noconf_ompi_topdir/$mca_no_config_env_file"
    else
        noconf_list_file="$noconf_ompi_topdir/$ext_no_config_list_file"
        noconf_env_file="$noconf_ompi_topdir/$ext_no_config_env_file"
    fi

    cat >> "$noconf_list_file" <<EOF
dnl ----------------------------------------------------------------

dnl No-configure component: 
dnl    $noconf_dir

EOF

    # Tell configure to add all the PARAM_CONFIG_FILES to
    # the AC_CONFIG_FILES list.
    for file in $PARAM_CONFIG_FILES; do
        echo "AC_CONFIG_FILES([$noconf_dir/$file])" >> "$noconf_list_file"
    done

    cat <<EOF
--> Adding to top-level configure no-configure subdirs:
-->   $noconf_dir
--> Adding to top-level configure AC_CONFIG_FILES list:
-->   $PARAM_CONFIG_FILES
EOF

    echo "$PARAM_CONFIG_PRIORITY $noconf_component" >> "$noconf_env_file"
}


##############################################################################
#
# run_m4_configure_component
#   Prepares the component with an .m4 file that should be used to
#   configure the component.
#
# INPUT:
#
# OUTPUT:
#    none
#
# SIDE EFFECTS:
#
##############################################################################
run_m4_configure_component() {
    m4conf_dir="$1"
    m4conf_ompi_topdir="$2"
    m4conf_project="$3"
    m4conf_framework="$4"
    m4conf_component="$5"

    # Write out to two files (they're merged at the end)
    if test $6 = "mca" ; then
        m4conf_list_file="$m4conf_ompi_topdir/$mca_no_config_list_file"
        m4conf_env_file="$m4conf_ompi_topdir/$mca_m4_config_env_file"
    else
        m4conf_list_file="$m4conf_ompi_topdir/$ext_no_config_list_file"
        m4conf_env_file="$m4conf_ompi_topdir/$ext_m4_config_env_file"
    fi

    cat >> "$m4conf_list_file" <<EOF
dnl ----------------------------------------------------------------

dnl m4-configure component: 
dnl    $m4conf_dir

EOF

    # Tell configure to add all the PARAM_CONFIG_FILES to
    # the AC_CONFIG_FILES list.
    for file in $PARAM_CONFIG_FILES; do
        echo "AC_CONFIG_FILES([$m4conf_dir/$file])" >> "$m4conf_list_file"
    done

    # add the m4_include of the m4 file into the mca .m4 file
    # directly.  It shouldn't be in a macro, so this is fairly safe to
    # do.  By this point, there should already be a header and all
    # that.  m4_includes are relative to the currently included file,
    # so need the .. to get us from config/ to the topsrcdir again.
    # Note that the ompi contrib system comes through here as well,
    # but they directly m4 include their own configure.m4 files, so we
    # skip them here.
    if test "$m4conf_framework" = "contrib" ; then
        true
    elif test $6 = "mca" ; then
        echo "m4_include(${m4conf_project}/mca/${m4conf_framework}/${m4conf_component}/configure.m4)" >> "$m4conf_ompi_topdir/$mca_m4_include_file"
    else
        echo "m4_include(${m4conf_project}/${m4conf_framework}/${m4conf_component}/configure.m4)" >> "$m4conf_ompi_topdir/$ext_m4_include_file"
    fi

    cat <<EOF
--> Adding to top-level configure m4-configure subdirs:
-->   $m4conf_dir
--> Adding to top-level configure AC_CONFIG_FILES list:
-->   $PARAM_CONFIG_FILES
EOF

    echo "$PARAM_CONFIG_PRIORITY $m4conf_component" >> "$m4conf_env_file"
}


##############################################################################
#
# make_template_version_header -- make a templated version header
# file, but only if we have a PARAM_VERSION_FILE that exists
#
# INPUT:
#    - filename base
#    - component type name
#    - component name
#
# OUTPUT:
#    none
#
# SIDE EFFECTS:
#
##############################################################################
make_version_header_template() {
    mvht_filename="$1"
    mvht_component_type="$2"
    mvht_component_name="$3"

    # See if we have a VERSION file

    PARAM_CONFIG_FILES_save="$PARAM_CONFIG_FILES"
    . ./configure.params
    if test -z "$PARAM_VERSION_FILE"; then
        if test -f "VERSION"; then
            PARAM_VERSION_FILE="VERSION"
        fi
    else
        if test ! -f "$PARAM_VERSION_FILE"; then
            PARAM_VERSION_FILE=
        fi
    fi

    if test -n "$PARAM_VERSION_FILE" -a -f "$PARAM_VERSION_FILE" -a \
        "$pd_component_type" != "common"; then
        rm -f "$mvht_filename.template.in"
        cat > "$mvht_filename.template.in" <<EOF
/*
 * This file is automatically created by autogen.sh; it should not
 * be edited by hand!!
 *
 * List of version number for this component
 */

#ifndef MCA_${mvht_component_type}_${mvht_component_name}_VERSION_H
#define MCA_${mvht_component_type}_${mvht_component_name}_VERSION_H

#define MCA_${mvht_component_type}_${mvht_component_name}_MAJOR_VERSION @MCA_${mvht_component_type}_${mvht_component_name}_MAJOR_VERSION@
#define MCA_${mvht_component_type}_${mvht_component_name}_MINOR_VERSION @MCA_${mvht_component_type}_${mvht_component_name}_MINOR_VERSION@
#define MCA_${mvht_component_type}_${mvht_component_name}_RELEASE_VERSION @MCA_${mvht_component_type}_${mvht_component_name}_RELEASE_VERSION@
#define MCA_${mvht_component_type}_${mvht_component_name}_GREEK_VERSION "@MCA_${mvht_component_type}_${mvht_component_name}_GREEK_VERSION@"
#define MCA_${mvht_component_type}_${mvht_component_name}_SVN_VERSION "@MCA_${mvht_component_type}_${mvht_component_name}_SVN_VERSION@"
#define MCA_${mvht_component_type}_${mvht_component_name}_VERSION "@MCA_${mvht_component_type}_${mvht_component_name}_VERSION@"

#endif /* MCA_${mvht_component_type}_${mvht_component_name}_VERSION_H */
EOF
    fi
    PARAM_CONFIG_FILES="$PARAM_CONFIG_FILES_save"
    unset PARAM_VERSION_FILE PARAM_CONFIG_FILES_save
}

component_list_sort() {
    cls_filename="$1"

    # why, oh, why can't non-gnu sort support the -s (stable) option?
    # Solaris sort supports -r -n and -u, so we'll assume that works everywhere

    # get the list of priorities
    component_list=
    cls_priority_list=`sort -r -n -u "$cls_filename" | cut -f1 -d' ' | xargs`
    for cls_priority in $cls_priority_list ; do
        component_list="$component_list "`grep "^$cls_priority " "$cls_filename" | cut -f2 -d' ' | xargs`
    done
}



##############################################################################
#
# process_dir - look at the files present in a given directory, and do
# one of the following:
#    - skip/ignore it
#    - run custom autogen.sh in it
#    - run the GNU tools in it
#    - get a list of Makefile.am's to add to the top-level configure
#
# INPUT:
#    - directory to run in
#    - OMPI top directory
#
# OUTPUT:
#    none
#
# SIDE EFFECTS:
#    - skips directories with .ompi_no_gnu .ompi_ignore
#    - uses provided autogen.sh if available
#
##############################################################################
process_dir() {
    pd_dir="$1"
    pd_ompi_topdir="$2"
    pd_project="$3"
    pd_framework="$4"
    pd_component="$5"

    pd_cur_dir="`pwd`"

    # Convert to absolutes

    if test -d "$pd_dir"; then
        cd "$pd_dir"
        pd_abs_dir="`pwd`"
        cd "$pd_cur_dir"
    fi

    if test -d "$pd_ompi_topdir"; then
        cd "$pd_ompi_topdir"
        pd_ompi_topdir="`pwd`"
        cd "$pd_cur_dir"
    fi

    # clean our environment a bit, since we might evaluate a configure.params
    unset PARAM_CONFIG_FILES
    PARAM_CONFIG_PRIORITY="0"

    if test -d "$pd_dir"; then
	cd "$pd_dir"

	# See if the package doesn't want us to set it up

	if test -f .ompi_no_gnu; then
	    cat <<EOF

*** Found .ompi_no_gnu file -- skipping GNU setup in:
***   `pwd`

EOF
	elif test -f .ompi_ignore -a ! -f .ompi_unignore; then

            # Note that if we have an empty (but existant)
            # .ompi_unignore, then we ignore the .ompi_ignore file
            # (and therefore build the component)

	    cat <<EOF

*** Found .ompi_ignore file -- skipping entire tree:
***   `pwd`

EOF

        # Use && instead of -a here for the test conditions because if
        # you use -a, then "test" will execute *all* condition clauses
        # (even if the first one is false), meaning that grep will
        # fail if there is no .ompi_unignore file.  If you use &&,
        # then the latter tests will not be executed if a prior one
        # fails (i.e., grep won't run if .ompi_unignore does not
        # exist).

        elif test -f .ompi_ignore && \
             test -s .ompi_unignore && \
             test -z "`$egrep $USER\$\|$USER@$HOST .ompi_unignore`" ; then

            # If we have a non-empty .ompi_unignore and our username
            # is in there somewhere, we ignore the .ompi_ignore (and
            # therefore build the component).  Otherwise, this
            # condition is true and we don't configure.

	    cat <<EOF

*** Found .ompi_ignore file and .ompi_unignore didn't invalidate -- 
*** skipping entire tree:
***   `pwd`

EOF
	elif test "$pd_abs_dir" != "$pd_ompi_topdir" -a -x autogen.sh; then
	    cat <<EOF

*** Found custom autogen.sh file in:
***   `pwd`

EOF
	    ./autogen.sh
            if test ! $? -eq 0 ; then
                echo "Error running autogen.sh -l in `pwd`.  Aborting."
                exit 1
            fi
        elif test -f configure.params -a -f configure.m4 ; then
            cat <<EOF

*** Found configure.params and configure.m4
***   `pwd`

EOF
            . ./configure.params
            if test -z "$PARAM_CONFIG_FILES"; then
                cat <<EOF
*** No PARAM_CONFIG_FILES!
*** Nothing to do -- skipping this directory
EOF
            else
                # temporary workaround - remove possibly there configure code
                rm -f "configure" "configure.ac*" "acinclude*" "aclocal.m4"

                run_m4_configure_component "$pd_dir" "$pd_ompi_topdir" \
                    "$pd_project" "$pd_framework" "$pd_component" "mca"
            fi

        elif test -f configure.ac -o -f configure.in; then
            # If we have configure.ac or configure.in, run the GNU
            # tools here

	    cat <<EOF

*** Found configure.(in|ac)
***   `pwd`

EOF
            run_gnu_tools "$pd_ompi_topdir"

        elif test -f configure.params -a -f configure.stub; then
	    cat <<EOF

*** Found configure.params and configure.stub
***   `pwd`

EOF
            run_gnu_tools "$pd_ompi_topdir"

        elif test -f configure.params; then
	    cat <<EOF

*** Found configure.params
***   `pwd`

EOF
            . ./configure.params
            if test -z "$PARAM_CONFIG_FILES"; then
                cat <<EOF
*** No PARAM_CONFIG_FILES!
*** Nothing to do -- skipping this directory
EOF
            else
                run_no_configure_component "$pd_dir" "$pd_ompi_topdir" \
                    "$pd_project" "$pd_framework" "$pd_component" "mca"
            fi
        else
	    cat <<EOF

*** Nothing found; directory skipped
***   `pwd`

EOF
        fi

        # See if there's a file containing additional directories to
        # traverse.  Shell scripts aren't too good at recursion (no
        # local state!), so just have a child autogen.sh do the work.

        if test -f $autogen_subdir_file; then
            pd_subdir_start_dir="`pwd`"
            echo ""
            echo "==> Found $autogen_subdir_file -- sub-traversing..."
            echo ""
            for dir in `cat $autogen_subdir_file`; do
                if test -d "$dir"; then
                    echo "*** Running autogen.sh in $dir"
                    echo "***   (started in $pd_subdir_start_dir)"
                    cd "$dir"
                    $pd_ompi_topdir/autogen.sh -l
                    if test ! $? -eq 0 ; then
                        echo "Error running autogen.sh -l in $dir.  Aborting."
                        exit 1
                    fi
                    cd "$pd_subdir_start_dir"
                    echo ""
                fi
            done
            echo "<== Back in $pd_subdir_start_dir"
            echo "<== autogen.sh continuing..."
        fi

        # Go back to the topdir

        cd "$pd_cur_dir"
    fi
    unset PARAM_CONFIG_FILES PARAM_VERSION_FILE
    unset pd_dir pd_ompi_topdir pd_cur_dir pd_component_type
}

process_ext_dir() {
    pd_dir="$1"
    pd_ompi_topdir="$2"
    pd_project="$3"
    pd_framework="$4"
    pd_component="$5"

    pd_cur_dir="`pwd`"

    # Convert to absolutes

    if test -d "$pd_dir"; then
        cd "$pd_dir"
        pd_abs_dir="`pwd`"
        cd "$pd_cur_dir"
    fi

    if test -d "$pd_ompi_topdir"; then
        cd "$pd_ompi_topdir"
        pd_ompi_topdir="`pwd`"
        cd "$pd_cur_dir"
    fi

    # clean our environment a bit, since we might evaluate a configure.params
    unset PARAM_CONFIG_FILES
    PARAM_CONFIG_PRIORITY="0"

    if test -d "$pd_dir"; then
	cd "$pd_dir"

	# See if the package doesn't want us to set it up

	if test -f .ompi_no_gnu; then
	    cat <<EOF

*** Found .ompi_no_gnu file -- skipping GNU setup in:
***   `pwd`

EOF
	elif test -f .ompi_ignore -a ! -f .ompi_unignore; then

            # Note that if we have an empty (but existant)
            # .ompi_unignore, then we ignore the .ompi_ignore file
            # (and therefore build the component)

	    cat <<EOF

*** Found .ompi_ignore file -- skipping entire tree:
***   `pwd`

EOF

        # Use && instead of -a here for the test conditions because if
        # you use -a, then "test" will execute *all* condition clauses
        # (even if the first one is false), meaning that grep will
        # fail if there is no .ompi_unignore file.  If you use &&,
        # then the latter tests will not be executed if a prior one
        # fails (i.e., grep won't run if .ompi_unignore does not
        # exist).

        elif test -f .ompi_ignore && \
             test -s .ompi_unignore && \
             test -z "`$egrep $USER\$\|$USER@$HOST .ompi_unignore`" ; then

            # If we have a non-empty .ompi_unignore and our username
            # is in there somewhere, we ignore the .ompi_ignore (and
            # therefore build the component).  Otherwise, this
            # condition is true and we don't configure.

	    cat <<EOF

*** Found .ompi_ignore file and .ompi_unignore didn't invalidate -- 
*** skipping entire tree:
***   `pwd`

EOF
	elif test "$pd_abs_dir" != "$pd_ompi_topdir" -a -x autogen.sh; then
	    cat <<EOF

*** Found custom autogen.sh file in:
***   `pwd`

EOF
	    ./autogen.sh
            if test ! $? -eq 0 ; then
                echo "Error running autogen.sh -l in `pwd`.  Aborting."
                exit 1
            fi
        elif test -f configure.params -a -f configure.m4 ; then
            cat <<EOF

*** Found configure.params and configure.m4
***   `pwd`

EOF
            . ./configure.params
            if test -z "$PARAM_CONFIG_FILES"; then
                cat <<EOF
*** No PARAM_CONFIG_FILES!
*** Nothing to do -- skipping this directory
EOF
            else
                # temporary workaround - remove possibly there configure code
                rm -f "configure" "configure.ac*" "acinclude*" "aclocal.m4"

                run_m4_configure_component "$pd_dir" "$pd_ompi_topdir" \
                    "$pd_project" "$pd_framework" "$pd_component" "ext"
            fi

        elif test -f configure.ac -o -f configure.in; then
            # If we have configure.ac or configure.in, run the GNU
            # tools here

	    cat <<EOF

*** Found configure.(in|ac)
***   `pwd`

EOF
            run_gnu_tools "$pd_ompi_topdir"

        elif test -f configure.params -a -f configure.stub; then
	    cat <<EOF

*** Found configure.params and configure.stub
***   `pwd`

EOF
            run_gnu_tools "$pd_ompi_topdir"

        elif test -f configure.params; then
	    cat <<EOF

*** Found configure.params
***   `pwd`

EOF
            . ./configure.params
            if test -z "$PARAM_CONFIG_FILES"; then
                cat <<EOF
*** No PARAM_CONFIG_FILES!
*** Nothing to do -- skipping this directory
EOF
            else
                run_no_configure_component "$pd_dir" "$pd_ompi_topdir" \
                    "$pd_project" "$pd_framework" "$pd_component" "ext"
            fi
        else
	    cat <<EOF

*** Nothing found; directory skipped
***   `pwd`

EOF
        fi

        # See if there's a file containing additional directories to
        # traverse.  Shell scripts aren't too good at recursion (no
        # local state!), so just have a child autogen.sh do the work.

        if test -f $autogen_subdir_file; then
            pd_subdir_start_dir="`pwd`"
            echo ""
            echo "==> Found $autogen_subdir_file -- sub-traversing..."
            echo ""
            for dir in `cat $autogen_subdir_file`; do
                if test -d "$dir"; then
                    echo "*** Running autogen.sh in $dir"
                    echo "***   (started in $pd_subdir_start_dir)"
                    cd "$dir"
                    $pd_ompi_topdir/autogen.sh -l
                    if test ! $? -eq 0 ; then
                        echo "Error running autogen.sh -l in $dir.  Aborting."
                        exit 1
                    fi
                    cd "$pd_subdir_start_dir"
                    echo ""
                fi
            done
            echo "<== Back in $pd_subdir_start_dir"
            echo "<== autogen.sh continuing..."
        fi

        # Go back to the topdir

        cd "$pd_cur_dir"
    fi
    unset PARAM_CONFIG_FILES PARAM_VERSION_FILE
    unset pd_dir pd_ompi_topdir pd_cur_dir pd_component_type
}

process_framework() {
    framework_path="$1"
    rg_cwd="$2"
    project="$3"
    framework="$4"

    if test "$framework" != "base" -a \
            -d "$framework_path" ; then
        if test "$framework" = "common" -o \
                -r "${framework_path}/${framework}.h" ; then
            framework_list="$framework_list $framework"

            # Add the framework's configure file into configure,
            # if there is one
            if test -r "${framework_path}/configure.m4" ; then
                echo "m4_include(${framework_path}/configure.m4)" >> "$mca_m4_include_file"
            fi
            echo "AC_CONFIG_FILES(${framework_path}/Makefile)" >> "$mca_no_config_list_file"

            rm -f "$mca_no_config_env_file" "$mca_m4_config_env_file"
            touch "$mca_no_config_env_file" "$mca_m4_config_env_file"

            for component_path in "$framework_path"/*; do
                if test -d "$component_path"; then
                    if test -f "$component_path/configure.in" -o \
                            -f "$component_path/configure.params" -o \
                            -f "$component_path/configure.ac"; then

                        component=`basename "$component_path"`

                        process_dir "$component_path" "$rg_cwd" \
                            "$project" "$framework" "$component"
                    fi
                fi
            done

            # make list of components that are "no configure".
            # Sort the list by priority (stable, so things stay in
            # alphabetical order at the same priority), then munge
            # it into form we like
            component_list=
            component_list_sort $mca_no_config_env_file
            component_list_define="m4_define([mca_${framework}_no_config_component_list], ["
            component_list_define_first="1"
            for component in $component_list ; do
                if test "$component_list_define_first" = "1"; then
                    component_list_define="${component_list_define}${component}"
                    component_list_define_first="0"
                else
                    component_list_define="${component_list_define}, ${component}"
                fi
            done
            component_list_define="${component_list_define}])"
            echo "$component_list_define" >> "$mca_no_configure_components_file"

            # make list of components that are "m4 configure"
            component_list=
            component_list_sort $mca_m4_config_env_file
            component_list_define="m4_define([mca_${framework}_m4_config_component_list], ["
            component_list_define_first="1"
            for component in $component_list ; do
                if test "$component_list_define_first" = "1"; then
                    component_list_define="${component_list_define}${component}"
                    component_list_define_first="0"
                else
                    component_list_define="${component_list_define}, ${component}"
                fi
            done
            component_list_define="${component_list_define}])"
            echo "$component_list_define" >> "$mca_no_configure_components_file"
        fi
    fi
}

process_ext_framework() {
    framework_path="$1"
    rg_cwd="$2"
    project="$3"
    framework="$4"

    if test -d "$framework_path" ; then
        framework_ext_list="$framework_ext_list $framework"

        # Add the framework's configure file into configure,
        # if there is one
        if test -r "${framework_path}/configure.m4" ; then
            echo "m4_include(${framework_path}/configure.m4)" >> "$ext_m4_include_file"
        fi
        echo "AC_CONFIG_FILES(${framework_path}/Makefile)" >> "$ext_no_config_list_file"

        rm -f "$ext_no_config_env_file" "$ext_m4_config_env_file"
        touch "$ext_no_config_env_file" "$ext_m4_config_env_file"

        for component_path in "$framework_path"/*; do
            if test -d "$component_path"; then
                if test -f "$component_path/configure.in" -o \
                    -f "$component_path/configure.params" -o \
                    -f "$component_path/configure.ac"; then

                    component=`basename "$component_path"`

                    process_ext_dir "$component_path" "$rg_cwd" \
                        "$project" "$framework" "$component"
                fi
            fi
        done

        # make list of components that are "no configure".
        # Sort the list by priority (stable, so things stay in
        # alphabetical order at the same priority), then munge
        # it into form we like
        component_list=
        component_list_sort $ext_no_config_env_file
        component_list_define="m4_define([ext_${framework}_no_config_component_list], ["
        component_list_define_first="1"
        for component in $component_list ; do
            if test "$component_list_define_first" = "1"; then
                component_list_define="${component_list_define}${component}"
                component_list_define_first="0"
            else
                component_list_define="${component_list_define}, ${component}"
            fi
        done
        component_list_define="${component_list_define}])"
        echo "$component_list_define" >> "$ext_no_configure_components_file"

        # make list of components that are "m4 configure"
        component_list=
        component_list_sort $ext_m4_config_env_file
        component_list_define="m4_define([ext_${framework}_m4_config_component_list], ["
        component_list_define_first="1"
        for component in $component_list ; do
            if test "$component_list_define_first" = "1"; then
                component_list_define="${component_list_define}${component}"
                component_list_define_first="0"
            else
                component_list_define="${component_list_define}, ${component}"
            fi
        done
        component_list_define="${component_list_define}])"
        echo "$component_list_define" >> "$ext_no_configure_components_file"
    fi
}

process_project() {
    project_path="$1"
    rg_cwd="$2"
    project="$3"
    
    project_list="$project_list $project"
    framework_list=""
    for framework_path in $project_path/mca/*; do
        framework=`basename "$framework_path"`
        process_framework $framework_path $rg_cwd $project $framework
    done

    # make list of frameworks for this project
    framework_list_define="m4_define([mca_${project}_framework_list], ["
    framework_list_define_first="1"
    for framework in $framework_list ; do
        if test "$framework_list_define_first" = "1"; then
            framework_list_define="${framework_list_define}${framework}"
            framework_list_define_first="0"
        else
            framework_list_define="${framework_list_define}, ${framework}"
        fi
    done
    framework_list_define="${framework_list_define}])"
    echo "$framework_list_define" >> "$mca_no_configure_components_file"

    # process contributed software packages (ompi/contrib/*)
    if test "$project" = "ompi"; then
        for contrib_path in $project_path/contrib/*; do
            process_dir $contrib_path $rg_cwd ompi contrib `basename $contrib_path`
        done
    fi

    # Extensions interface only applicable to ompi project
    if test $project = "ompi" ; then
        # Process interface extensions
        framework_ext_list=""
        process_ext_framework $project_path/mpiext $rg_cwd $project "mpiext"

        # make list of frameworks for this project
        framework_ext_list_define="m4_define([ext_${project}_framework_list], ["
        framework_ext_list_define_first="1"
        for framework in $framework_ext_list ; do
            if test "$framework_ext_list_define_first" = "1"; then
                framework_ext_list_define="${framework_ext_list_define}${framework}"
                framework_ext_list_define_first="0"
            else
                framework_ext_list_define="${framework_ext_list_define}, ${framework}"
            fi
        done
        framework_ext_list_define="${framework_ext_list_define}])"
        echo "$framework_ext_list_define" >> "$ext_no_configure_components_file"
    fi
}


##############################################################################
#
# run_global - run the config in the top OMPI dir and all MCA components
#
# INPUT:
#    none
#
# OUTPUT:
#    none
#
# SIDE EFFECTS:
#
##############################################################################
run_global() {
    # [Re-]Create the mca_component_list file

    rm -f "$mca_no_configure_components_file" "$mca_no_config_list_file" \
        "$mca_no_config_env_file" "$mca_m4_config_env_file" "$mca_m4_include_file"
    touch "$mca_no_configure_components_file" "$mca_no_config_list_file" \
        "$mca_m4_config_env_file" "$mca_m4_include_file"

    # create header for the component m4 include file
    cat > "$mca_m4_include_file" <<EOF
dnl
dnl \$HEADER
dnl

dnl This file is automatically created by autogen.sh; it should not
dnl be edited by hand!!

EOF

    #create header for the component config file
    cat > "$mca_no_configure_components_file" <<EOF
dnl
dnl \$HEADER
dnl

dnl This file is automatically created by autogen.sh; it should not
dnl be edited by hand!!

EOF

    # [Re-]Create the ext_component_list file
    rm -f "$ext_no_configure_components_file" "$ext_no_config_list_file" \
        "$ext_no_config_env_file" "$ext_m4_config_env_file" "$ext_m4_include_file"
    touch "$ext_no_configure_components_file" "$ext_no_config_list_file" \
        "$ext_m4_config_env_file" "$ext_m4_include_file"

    # create header for the component m4 include file
    cat > "$ext_m4_include_file" <<EOF
dnl
dnl \$HEADER
dnl

dnl This file is automatically created by autogen.sh; it should not
dnl be edited by hand!!

EOF

    #create header for the component config file
    cat > "$ext_no_configure_components_file" <<EOF
dnl
dnl \$HEADER
dnl

dnl This file is automatically created by autogen.sh; it should not
dnl be edited by hand!!

EOF

    # Now run the config in every directory in <location>/mca/*/*
    # that has a configure.in or configure.ac script
    #
    # In order to deal with components that have .m4 files, we need to
    # build up m4_defined lists along the way.  Unfortunately, there
    # is no good way to do this at the end (stupid sh), so we have to
    # do it as we are going through the lists of frameworks and
    # components.  Use a file to keep the list of components (we don't
    # want every component in a framework included, as the
    # determination about skipping components or whether the component
    # has its own configure script are made later on in the process.

    rg_cwd="`pwd`"
    echo $rg_cwd
    project_list=""
    for project_path in $config_project_list; do 
        project=`basename "$project_path"`
        process_project $project_path $rg_cwd $project 
    done

    # create the m4 defines for the list of projects.  The list of
    # frameworks for each project is already created and in the file.
    project_list_define="m4_define([mca_project_list], ["
    project_list_define_first="1"
    for project in $project_list ; do
        if test "$project_list_define_first" = "1"; then
            project_list_define="${project_list_define}${project}"
            project_list_define_first="0"
        else
            project_list_define="${project_list_define}, ${project}"
        fi
    done
    project_list_define="${project_list_define}])"
    echo "$project_list_define" >> "$mca_no_configure_components_file"

    # create the m4 defines for the list of projects where MPI Extensions
    # apply, which is only 'ompi'
    project_list_define="m4_define([ext_project_list], [ompi])"
    echo "$project_list_define" >> "$ext_no_configure_components_file"


    cat >> "$mca_no_configure_components_file" <<EOF

dnl List all the no-configure components that we found, and AC_DEFINE
dnl their versions

AC_DEFUN([MCA_NO_CONFIG_CONFIG_FILES],[

`cat $mca_no_config_list_file`
])dnl
EOF

    cat >> "$ext_no_configure_components_file" <<EOF

dnl List all the no-configure components that we found, and AC_DEFINE
dnl their versions

AC_DEFUN([EXT_NO_CONFIG_CONFIG_FILES],[

`cat $ext_no_config_list_file`
])dnl
EOF

    # Remove temp files
    rm -f $mca_no_config_list_file $mca_no_config_env_file $mca_m4_config_env_file
    rm -f $ext_no_config_list_file $ext_no_config_env_file $ext_m4_config_env_file

    # Finally, after we found all the no-configure MCA components, run
    # the config in the top-level directory

    process_dir . . "" "" ""

    unset project project_path framework framework_path component component_path
}

##############################################################################
#
# check_for_svk_checkout - determine whether this is an SVK checkout
#
# INPUT:
#    none
#
# OUTPUT:
#    none
#
# SIDE EFFECTS:
#
##############################################################################
check_for_svk_checkout() {
    is_svk_checkout=0

    svk_path=`which svk 2>/dev/null`
    if test -x "$svk_path" -a -d "$HOME/.svk/local"; then
        top_level_dir="`dirname $0`"
        svk info $top_level_dir >/dev/null 2>&1
        if test "$?" = 0 ; then
            is_svk_checkout=1
        fi
    fi

}

##############################################################################
#
# main - do the real work...
#
##############################################################################

# announce
echo "[Checking] command line parameters"

# Check the command line to see if we should run the whole shebang, or
# just in this current directory.

want_local=no
ompidir=
want_ompi=1
want_orte=1
for arg in $*; do
    case $arg in
    -l) want_local=yes ;;
    -ompidir|--ompidir|-ompi|--ompi) ompidir="$2" ;;
    -no-ompi|--no-ompi) want_ompi=0 ;;
    -no-orte|--no-orte) want_orte=0 ;;
    *) ;;
    esac
    shift
done

# announce
echo "[Checking] prerequisites"

# sanity check to make sure user isn't being stupid
check_for_svk_checkout
if test ! -d .svn -a ! $is_svk_checkout ; then
    cat <<EOF

This doesn't look like a developer copy of Open MPI.  You probably do not
want to run autogen.sh - it is normally not needed for a release source
tree.  Giving you 5 seconds to reconsider and kill me.

EOF
    sleep 5
fi

# figure out if we're at the top level of the OMPI tree, a component's
# top-level directory, or somewhere else.
if test -f VERSION -a -f configure.ac -a -f $topdir_file ; then
    # locations to look for mca modules
    config_project_list="opal"
    project_file=config/project_list.m4
    rm -f $project_file
    cat > $project_file <<EOF
dnl This file is automatically generated by autogen.sh
dnl Manual changes will be lost!

dnl Listing of sub-layers to include
m4_define([project_opal], [1])
EOF
    project_name_long="Open Portability Access Layer"
    project_name_short="open-pal"
    if test "$want_orte" = "1" ; then
        config_project_list="$config_project_list orte"
        echo "m4_define([project_orte], [1])" >> $project_file
        project_name_long="Open MPI Run Time Environment"
        project_name_short="openmpi-rte"
    fi
    if test "$want_ompi" = "1" ; then
        config_project_list="$config_project_list ompi"
        echo "m4_define([project_ompi], [1])" >> $project_file
        project_name_long="Open MPI"
        project_name_short="openmpi"
    fi
    cat >> $project_file <<EOF

dnl Project name
m4_define([project_name_long], [$project_name_long])
m4_define([project_name_short], [$project_name_short])
EOF
    echo "Configuring projects: $config_project_list"

    # Top level of OMPI tree
    ompidir="`pwd`"
elif test -f configure.in -o -f configure.ac -o -f configure.params ; then
    # Top level of a component directory
    want_local=yes
    if test -z "$ompidir"; then
        ompidir="../../../.."
    fi
else
    cat <<EOF

You must run this script from either the top level of the OMPI
directory tree or the top-level of an MCA component directory tree.

EOF
    exit 1
fi

# find all the apps we are going to run
find_app "autom4te"
find_app "aclocal"
find_app "autoheader"
find_app "autoconf"
find_app "libtoolize"
find_app "automake"

# do the work
if test "$want_local" = "yes"; then
    process_dir . $ompidir
else
    run_global
fi

# BWB --- temporary time to update autoconf / automake hack
bad=0
if ! check_version "2.60.0" $ompi_autoconf_found_version ; then
    bad=1
fi
if ! check_version "1.10.0" $ompi_automake_found_version ; then
    bad=1
fi
if test $bad -eq 1 ; then
	cat <<EOF

-------------------------------------------------------------------------
WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING

You are currently using Autoconf $ac_version and Automake $am_version.
Starting Saturday, May 12th, Autoconf 2.60 and Automake 1.10 or higher
will be required to built configure for the trunk.  Note that these
autotool versions can also safely build the v1.2 branch.  You will
still be able to use either Libtool 1.5.22 or 2.1a.

WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
-------------------------------------------------------------------------

EOF
fi
# BWB --- end evil hack

# All done
exit 0