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#! /bin/sh
#
# %CopyrightBegin%
#
# Copyright Ericsson AB 2002-2010. All Rights Reserved.
#
# The contents of this file are subject to the Erlang Public License,
# Version 1.1, (the "License"); you may not use this file except in
# compliance with the License. You should have received a copy of the
# Erlang Public License along with this software. If not, it can be
# retrieved online at http://www.erlang.org/.
#
# Software distributed under the License is distributed on an "AS IS"
# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
# the License for the specific language governing rights and limitations
# under the License.
#
# %CopyrightEnd%
#

# Expected autoconf version
EXPECTED_AUTOCONF_VERSION=2.59

# clearmake command to use
clearmake=false

# Global configuration variables
#
# NOTE: lazy_configure depends on '.' always being last directory
if [ -z "$ONLY_ERTS" ]; then
AUTOCONF_SUBDIRS="lib lib/* lib/test_server/src"
fi
AUTOCONF_SUBDIRS="$AUTOCONF_SUBDIRS erts ."

# `bootstrap_apps' should include application that are built, or
# partly built in one of the bootstrap phases. Applications that
# only get some static includes copied into the bootstrap directory
# should not be included.
bootstrap_apps="erts lib/asn1 lib/compiler lib/hipe lib/ic lib/kernel lib/parsetools lib/sasl lib/snmp lib/stdlib lib/syntax_tools"

# We will quote a bit more than needed, but the important thing is that
# all that needs quoting will be quoted...
DONT_QUOTE="A-Za-z0-9~/=_+-"

# Utility functions
usage ()
{
    echo "Available options (-a switch select all applications):"
    echo " setup [-a] [<configure parameters>] - does autoconf, configure and boot."
    echo " all [-a] <dir> - does autoconf, configure, boot, release"
    echo " autoconf - (re)build the configure scripts"
    echo " configure [<configure parameters>] - does the actual configuration"
    echo " boot [-a] - bootstraps and builds the system (after configure)"
    echo " release <target_dir> - creates a small release to <target_dir>"
    echo " release [-a] <target_dir> - creates full release to <target_dir>"
    echo " smp [-a] - build an Erlang system, smp flavor only"
    echo " hybrid [-a] - build an Erlang system, hybrid flavor only"
    echo " tests <dir> - Build testsuites to <dir>"
    echo ""
    echo "These are for cleaning up an open source distribution"
    echo "with prebuilt files, so that it resembles the clean developers"
    echo "codebase:"
    echo " remove_prebuilt_files - create a minimal source tree"
    echo " save_bootstrap - recreate primary bootstrap"
    echo ""
    echo "Special targets for Windows(tm) build:"
    echo " debuginfo_win32 <dir> - adds debug emulator and pdb files to <dir>"
    echo " installer_win32 <dir> - creates a windows installer from <dir>"
    echo ""
    echo "Before trying to build on windows, consider the following option"
    echo " env_win32 - echo environment settings for win32 with visual C++, use with eval"
    echo " env_mingw32 - echo environment settings for win32 with MinGW, use with eval"
    echo ""
    echo "Before trying to build for vxworks, consider the following option"
    echo " env_vxworks <cpu> - echo environment settings for vxworks, use with eval"
    echo ""
    case $version_controller in
none)
;;
clearcase)
echo ""
echo "Handle the primary bootstrap in Clearcase:"
echo " prepare_primary - prepare for building a primary bootstrap"
echo " update_primary - create the primary bootstrap"
echo " commit_primary - commit a primary bootstrap"
echo " cancel_primary - uncheckout a primary bootstrap"
;;
git)
echo ""
echo "update_primary - build and commit a new primary bootstrap"
;;
    esac

case $version_controller in
none)
;;
clearcase)
echo ""
echo "Handle the preloaded modules in Clearcase:"
echo " prepare_preloaded - prepares for building preloaded code"
echo " update_preloaded - creates the preloaded code"
echo " commit_preloaded - commits the preloaded code"
echo " cancel_preloaded - uncheckout preloaded code"
;;
git)
echo ""
echo "update_preloaded - build and commit the preloaded modules"
;;
    esac
}

hide_vars ()
{
    script=
    for var in "$@"; do
if [ "X$var" != "X" ]; then
script="$script test \"X\$$var\" = \"X\" || hidden_$var=\$$var; unset $var;"
fi
done
if [ "X$script" != "X" ]; then
eval "$script"
    fi
unset script
}

restore_vars ()
{
    script=
    for var in "$@"; do
if [ "X$var" != "X" ]; then
script="$script unset $var; test \"X\$hidden_$var\" = \"X\" || { $var=\$hidden_$var; export $var; } ; unset hidden_$var;"
fi
done
if [ "X$script" != "X" ]; then
eval "$script"
    fi
unset script
}


check_erltop ()
{
        ERLTOP_FORCED=false
if [ "X$ERL_TOP" = "X" ]; then
if [ -f ./otp_build -a -f ./erts/autoconf/config.guess ]; then
ERLTOP_FORCED=true
ERL_TOP=`/bin/pwd`
export ERL_TOP
else
echo "The environment variable ERL_TOP must be set." >&2
exit 1
fi
fi
}

target_contains ()
{
Y=`echo $TARGET | sed "s,$1,,g"`
[ X"$Y" != X"$TARGET" ]
return $?
}

determine_version_controller ()
{
    version_controller=none

    # The current directory is now $ERL_TOP. Check for
    # either this directory being controlled by git or
    # for the "otp_build" file being a Clearcase controlled
    # object.

    if { git rev-parse --git-dir; } 2>/dev/null >/dev/null; then
version_controller=git
    else
if test -d "otp_build@@/"; then
version_controller=clearcase
fi
fi
}
# Execution of the different options

# Special static config flags for certain platforms are set here
set_config_flags ()
{
# * Extra flags to pass to configure are placed in `CONFIG_FLAGS'.
# * The command line is no longer added to `CONFIG_FLAGS' by
# `set_config_flags'. It is instead passed directly to
# `run_configure', or added to `CONFIG_FLAGS' at some other
# place.
# * `CONFIG_FLAGS' may contain flags when `set_config_flags' is
# called. These flags should survive the call to `set_config_flags'
# (in the cross compilation case the whole command line as well as
# the cross configuration have been moved here).

if target_contains linux; then
XX=`echo $* | grep -v able-hipe`
if [ "$*" = "$XX" ]; then
CONFIG_FLAGS="$CONFIG_FLAGS --disable-hipe"
fi
fi
if target_contains "univel-sysv4"; then
CONFIG_FLAGS="$CONFIG_FLAGS --x-libraries=/usr/lib/X11"
fi

if target_contains free_source; then
CONFIG_FLAGS="$CONFIG_FLAGS --host=$TARGET"
fi
if target_contains win32; then
CONFIG_FLAGS="--build=$BUILDSYS build_alias=win32 --host=win32 --target=win32 $CONFIG_FLAGS"
else
# Link SSL static for all binary distributions if not overridden
XX=`echo $* | grep -v dynamic-ssl-lib`
if [ "$*" = "$XX" ]; then
CONFIG_FLAGS="--disable-dynamic-ssl-lib $CONFIG_FLAGS"
fi
fi
if [ "x$OVERRIDE_CONFIG_CACHE" = "x" ]; then
CONFIG_FLAGS="$CONFIG_FLAGS --cache-file=/dev/null"
else
CONFIG_FLAGS="$CONFIG_FLAGS --cache-file=$OVERRIDE_CONFIG_CACHE"
fi

env_to_config_flags $erl_build_tool_vars

export CONFIG_FLAGS;
}

NL="\
"
create_lib_configure_in()
{
    cd $ERL_TOP

    # Multiple versions of autoconf generates code that
    # don't work on all platforms (e.g. SunOS 5.8) if
    # sub directories are soft links. Internally at Ericsson
    # some OTP application directories are soft links.
    # An added "/." solves this problem.

    sdirs=
    for lib_app in $bootstrap_apps; do
case $lib_app in
lib/*)
if [ -f "$lib_app/configure.in" ]; then
app=`echo "$lib_app" | sed "s|lib/\(.*\)|\1|"`
sdirs="${sdirs}test ! -f $app/configure || AC_CONFIG_SUBDIRS($app/.)${NL}"
fi;;
*)
;;
esac
done

sed_bootstrap="s%@BOOTSTRAP_CONFIGURE_APPS@%$sdirs%g"

    sdirs=
    for lib_app in lib/*; do
is_bapp=false
for bapp in $bootstrap_apps; do
test $bapp != $lib_app || { is_bapp=true; break; }
done
if [ $is_bapp = false ] && [ -f "$lib_app/configure.in" ]; then
app=`echo "$lib_app" | sed "s|lib/\(.*\)|\1|"`
sdirs="${sdirs} test ! -f $app/configure || AC_CONFIG_SUBDIRS($app/.)${NL}"
fi
done

sed_non_bootstrap="s%@NON_BOOTSTRAP_CONFIGURE_APPS@%$sdirs%g"
    
    rm -f lib/configure.in
    sed "$sed_bootstrap;$sed_non_bootstrap" > lib/configure.in < lib/configure.in.src || {
echo "Failed to create lib/configure.in"
exit 1
    }
}

do_autoconf ()
{
        create_lib_configure_in

        if target_contains win32; then
# Select the correct autoconf on cygwin
save_want_autoconf_ver=$WANT_AUTOCONF_VER
WANT_AUTOCONF_VER=$EXPECTED_AUTOCONF_VERSION
export WANT_AUTOCONF_VER
fi
exp_ac_vsn=$EXPECTED_AUTOCONF_VERSION
ac_vsn_blob=`autoconf --version`
ac_vsn=`echo x$ac_vsn_blob | sed "s|[^0-9]*\([0-9][^ \t\n]*\).*|\1|"`
case "$ac_vsn" in
$exp_ac_vsn)
;;
*)
echo "***************************************************" 1>&2
echo "***************************************************" 1>&2
echo "*** WARNING: System might fail to configure or" 1>&2
echo "*** might be erroneously configured" 1>&2
echo "*** since autoconf version $ac_vsn is used" 1>&2
echo "*** instead of version $exp_ac_vsn!" 1>&2
echo "***************************************************" 1>&2
echo "***************************************************" 1>&2
;;
esac

if [ ! -z "$OVERRIDE_CONFIGURE" ]; then
echo "Autoconf disabled on target $TARGET, but is performed on host" >&2
# We still use erts configure for erl_interface and VxWorks
case "$TARGET" in
*vxworks*)
AUTOCONF_SUBDIRS=`echo $AUTOCONF_SUBDIRS | \
sed -e 's,lib/erl_interface,,' \
-e 's,lib/gs,,' \
-e 's,lib/megaco,,'`
;;
esac
fi
hide_vars OVERRIDE_TARGET TARGET
TARGET=$BUILDSYS
export TARGET

for d in $AUTOCONF_SUBDIRS; do
file="$d/configure.in"
[ -f "$file" ] || continue
echo ""
[ ! -d "$d/autom4te.cache" ] || {
echo "=== cleaning $d/autom4te.cache"
rm -f "$d"/autom4te.cache/*
}
echo "=== running autoconf in $d"
( cd "$d" && autoconf ) || exit 1
chdr=`cat "$file" | sed -n "s|.*\(AC_CONFIG_HEADER\).*|\1|p"`
[ "$chdr" = "AC_CONFIG_HEADER" ] || continue
echo "=== running autoheader in $d"
( cd "$d" && autoheader ) || exit 1
done

restore_vars OVERRIDE_TARGET TARGET

        if target_contains win32; then
WANT_AUTOCONF_VER=$save_want_autoconf_ver
export WANT_AUTOCONF_VER
fi
}

mk_targetdir ()
{
    if [ ! -d $ERL_TOP/$TARGET ]; then
echo "creating $ERL_TOP/$TARGET"
mkdir $ERL_TOP/$TARGET
    else
echo "existing $ERL_TOP/$TARGET is used"
    fi
}

run_configure ()
{
    cdir="$ERL_TOP"
    [ -z "$ONLY_ERTS" ] || {
cdir="$ERL_TOP/erts"
CONFIG_FLAGS="$CONFIG_FLAGS --no-recursion"
    }

    echo "$cdir/configure $CONFIG_FLAGS" ${1+"$@"}
    (cd "$cdir" && $config_eval ./configure $CONFIG_FLAGS ${1+"$@"}) || exit 1
}

env_to_config_flags ()
{
    for env_var in "$@"; do
script="echo $env_var=\$$env_var; unset $env_var >/dev/null 2>&1"
env_arg=`eval $script`
case $env_arg in
"$env_var=")
;;
*[!$DONT_QUOTE]*)
config_eval=eval
new_arg=`echo "X$env_arg" | sed "s|^X||;s|\([^$DONT_QUOTE]\)|\\\\\\\\\1|g"`
CONFIG_FLAGS="$CONFIG_FLAGS $new_arg";;
*)
CONFIG_FLAGS="$CONFIG_FLAGS $env_arg";;
esac
eval unset $env_var
    done
}

try_cross_configure ()
{
    cross_configure=no
    host_value=
    build_value=

    # Get `erl_xcomp_vars'
    . "$ERL_TOP/xcomp/erl-xcomp-vars.sh" || exit 1

    for arg in ${1+"$@"}; do
case "$arg" in
--host=*)
host_value=`echo $x | sed "s|^--host=\(.*\)|\1|"`;;
--build=*)
build_value=`echo $x | sed "s|^--build=\(.*\)|\1|"`;;
--xcomp-conf=*)
cross_configure=yes;;
*)
;;
esac
done

test $cross_configure = yes || {

test "X$host_value" = "X" || {

test "X$build_value" != "X" || build_value="$BUILDSYS"

build_sys=`$ERL_TOP/erts/autoconf/config.sub "$build_value"` || exit 1
host_sys=`$ERL_TOP/erts/autoconf/config.sub "$host_value"` || exit 1


test "$host_sys" = "$build_sys" || cross_configure=yes
}
    }

    test $cross_configure = yes || return 1

    # cross configure...
    CONFIG_FLAGS=

    env_to_config_flags $erl_build_tool_vars $erl_xcomp_vars

    for arg in ${1+"$@"}; do
case "$arg" in
--host=*)
host_value=`echo $x | sed "s|^--host=\(.*\)|\1|"`;;
--build=*)
build_value=`echo $x | sed "s|^--build=\(.*\)|\1|"`;;
--xcomp-conf=*)
# tilde expansion is not handled by the `configure' script,
# but we do it for this argument. This argument is however not
# a `configure' argument.
xcomp_conf=`echo "X$arg" | sed "s|^X--xcomp-conf=\(.*\)\$|\1|g;s|\([^$DONT_QUOTE]\)|\\\\\\\\\1|g"`
eval "xcomp_conf=$xcomp_conf"
test "X$xcomp_conf" != "X" || {
echo "$0: Missing xcomp-conf file name"
exit 1
}
test -f "$xcomp_conf" || {
echo "$0: Missing xcomp-conf file: $xcomp_conf"
exit 1
}
. "$xcomp_conf"
test $? -eq 0 || {
echo "$0: Failed to read xcomp-conf file: $xcomp_conf"
exit 1
}
test "X$erl_xcomp_build" = "X" || build_value="$erl_xcomp_build"
test "X$erl_xcomp_host" = "X" || host_value="$erl_xcomp_host"
unset erl_xcomp_build
unset erl_xcomp_host
CONFIG_FLAGS="$CONFIG_FLAGS $erl_xcomp_configure_flags"
unset erl_xcomp_configure_flags
env_to_config_flags $erl_build_tool_vars $erl_xcomp_vars;;
*[!$DONT_QUOTE]*)
config_eval=eval
new_arg=`echo "X$arg" | sed "s|^X||;s|\([^$DONT_QUOTE]\)|\\\\\\\\\1|g"`
CONFIG_FLAGS="$CONFIG_FLAGS $new_arg";;
*)
CONFIG_FLAGS="$CONFIG_FLAGS $arg";;
esac
done

CONFIG_FLAGS="--host=$host_value $CONFIG_FLAGS"
    test "X$build_value" != "Xguess" || build_value="$BUILDSYS"
    test "X$build_value" = "X" || CONFIG_FLAGS="--build=$build_value $CONFIG_FLAGS"

    # Configure build system for boot strap
    cat <<EOF

*
* Configuring the bootstrap build system...
*

EOF

    # hide build tools environment which is for the cross configure
    set_config_flags $CONFIG_FLAGS
    hide_vars CONFIG_FLAGS

    set_config_flags
    run_configure --enable-bootstrap-only

    # restore the hidden build tools environment for the cross configure
    restore_vars CONFIG_FLAGS

    COMPFIX=""
    cat <<EOF

*
* Configuring the cross host system ($host_value)...
*

EOF
    # We don't pass the command line here since we already have moved it
    # into CONFIG_FLAGS
    run_configure

    return 0
}

do_configure ()
{
    setup_make
    mk_targetdir

    # Get `erl_build_tool_vars'
    . "$ERL_TOP/erl-build-tool-vars.sh" || exit 1

    if [ ! -z "$OVERRIDE_CONFIGURE" ]; then
case $TARGET in
vxworks_*)
( cd erts/autoconf && \
$ERL_TOP/erts/autoconf/configure.vxworks $TARGET )
echo "Configuring for build system too..." >&2
hide_vars OVERRIDE_TARGET TARGET
TARGET=$BUILDSYS
export TARGET
mk_targetdir
set_config_flags "$@"
run_configure "$@"
restore_vars OVERRIDE_TARGET TARGET;;
*)
echo "Unexpected target when ordinary configure is" \
"overridden" >&2
echo 'check if $OVERRIDE_CONFIGURE and $OVERRIDE_TAGET' \
'environments are correct.' >&2
exit 1;;
esac
else
try_cross_configure "$@"
if [ $cross_configure = no ]; then
CONFIG_FLAGS=
set_config_flags "$@"
run_configure "$@"
fi
fi
}

do_lazy_configure ()
{
    setup_make
    if [ "x$OVERRIDE_TARGET" != "x" -a "x$OVERRIDE_TARGET" != "xwin32" ]; then
echo "Not supported for cross compilation" >&2
exit 1
    fi
CONFIG_FLAGS=
    set_config_flags "$@"
    CONFIGURE_FLAGS="$@"
    [ "$CONFIG_FLAGS" = "" ] || CONFIGURE_FLAGS="$CONFIG_FLAGS $CONFIGURE_FLAGS"
    for c_dir in $AUTOCONF_SUBDIRS; do
if test -f $ERL_TOP/$c_dir/configure.in; then
dir=$ERL_TOP/$c_dir
echo ""
echo "=== Begin configuring $dir"
xc_dep= ;
xcs_dep= ;
test -d $dir/$TARGET || mkdir $dir/$TARGET
test -f $dir/aclocal.m4 && xc_dep="$xcs_dep $dir/aclocal.m4"
test -f $dir/acsite.m4 && xc_dep="$xcs_dep $dir/acsite.m4"
test x$c_dir = x"erts" && xcs_dep="$xcs_dep $dir/config.h.in"
$MAKE -f $ERL_TOP/make/lazy_configure.mk \
MAKE="$MAKE" TARGET=$TARGET \
ERL_TOP=$ERL_TOP \
CONFIGURE_FLAGS="$CONFIGURE_FLAGS" \
CONFIGURE_DIR=$dir \
EXTRA_CONFIGURE_DEPENDENCIES=$xc_dep \
EXTRA_CONFIG_STATUS_DEPENDENCIES=$xcs_dep \
EXPECTED_AUTOCONF_VERSION=$EXPECTED_AUTOCONF_VERSION \
lazy_configure
echo "=== Done configuring $dir"
echo ""
fi
done
}

do_lazy_configure_clean ()
{
    setup_make
    if [ "x$OVERRIDE_TARGET" != "x" -a "x$OVERRIDE_TARGET" != "xwin32" ]; then
echo "Not supported for cross compilation" >&2
exit 1
    fi
for c_dir in $AUTOCONF_SUBDIRS; do
if test -f $ERL_TOP/$c_dir/configure.in; then
dir=$ERL_TOP/$c_dir
echo ""
echo "=== Begin cleaning configure in $dir"
xc_dep= ;
xcs_dep= ;
test -d $dir/$TARGET || mkdir $dir/$TARGET
test -f $dir/aclocal.m4 && xc_dep="$xcs_dep $dir/aclocal.m4"
test -f $dir/acsite.m4 && xc_dep="$xcs_dep $dir/acsite.m4"
test x$c_dir = x"erts" && xcs_dep="$xcs_dep $dir/config.h.in"
$MAKE -f $ERL_TOP/make/lazy_configure.mk \
MAKE="$MAKE" TARGET=$TARGET \
ERL_TOP=$ERL_TOP \
CONFIGURE_DIR=$dir \
EXPECTED_AUTOCONF_VERSION=$EXPECTED_AUTOCONF_VERSION \
lazy_configure_clean
echo "=== Done cleaning configure in $dir"
echo ""
fi
done

}

do_lazy_configure_target_clean ()
{
    setup_make
    if [ "x$OVERRIDE_TARGET" != "x" -a "x$OVERRIDE_TARGET" != "xwin32" ]; then
echo "Not supported for cross compilation" >&2
exit 1
    fi
for c_dir in $AUTOCONF_SUBDIRS; do
if test -f $ERL_TOP/$c_dir/configure.in; then
dir=$ERL_TOP/$c_dir
echo ""
echo "=== Begin target cleaning configure in $dir"
xc_dep= ;
xcs_dep= ;
test -d $dir/$TARGET || mkdir $dir/$TARGET
test -f $dir/aclocal.m4 && xc_dep="$xcs_dep $dir/aclocal.m4"
test -f $dir/acsite.m4 && xc_dep="$xcs_dep $dir/acsite.m4"
test x$c_dir = x"erts" && xcs_dep="$xcs_dep $dir/config.h.in"
$MAKE -f $ERL_TOP/make/lazy_configure.mk \
MAKE="$MAKE" TARGET=$TARGET \
ERL_TOP=$ERL_TOP \
CONFIGURE_DIR=$dir \
EXPECTED_AUTOCONF_VERSION=$EXPECTED_AUTOCONF_VERSION \
lazy_configure_target_clean
echo "=== Done target cleaning configure in $dir"
echo ""
fi
done

}

    

echo_setenv ()
{
    case "$DAILY_BUILD_SCRIPT$SHELL" in
true*)
echo "$1=$2";;
*ash|*ksh|*/sh|*zsh|*ash)
echo "$1=\"$2\";export $1$3";;
*csh)
echo "setenv $1 \"$2\"$3";;
    esac
}

echo_env_bootstrap ()
{
    boot_bin=$BOOTSTRAP_ROOT/bootstrap/bin
    
    echo_setenv PATH $boot_bin:$PATH
}

echo_env_erltop ()
{
    if [ X"$ERL_TOP" = X"" -o "$ERLTOP_FORCED" = "true" ]; then
if [ -f ./otp_build ]; then
# Seems to be current directory...
echo_setenv ERL_TOP `/bin/pwd` ';'
else
echo "You need to either set ERL_TOP first or stand in the same" \
"directory as this script resides in." >&2
exit 1
fi
fi
}

echo_envinfo ()
{
    case "$SHELL" in
*csh)
return 0
;;
*)
;;
    esac
if [ X"$DAILY_BUILD_SCRIPT" = X"true" ]; then
echo '# Output generated for daily build script only '\
'($DAILY_BUILD_SCRIPT=true)'
    else
echo '# Please note:'
echo '# The command you are running is supposed to be run'\
'using the shells'
echo '# "eval" builtin, like in:'
echo '# $ eval `./otp_build env_<something>`'
echo '# If you see this comment, you probably haven'"'"'t done that.'
    fi
}

echo_env_vxworks ()
{
    if [ -z "$1" ]; then
echo "env_vxworks requires CPU architecture as parameter (ppc603, ppc860 etc)." >&2
exit 1
    fi
echo_env_erltop
    echo_setenv OVERRIDE_CONFIGURE true ';'
    echo_setenv OVERRIDE_TARGET vxworks_$1
    echo_envinfo
}

echo_env_win32 ()
{
    #echo_envinfo
    if [ X"$SHELL" = X"" ]; then
echo "You need to export the shell variable first," \
"for bourne-like shells, type:" >&2
echo 'export SHELL' >&2
echo "and for csh-like shells, type:" >&2
echo 'setenv SHELL $SHELL' >&2
echo " - then try again." >&2
exit 1
    fi
echo_env_erltop
    # Try to cope with paths containing unexpected things like stray
    # mixed paths (c:/something/bin) and quotes. Only C and D drive
    # handled.
    CCYGPATH=`cygpath c:\\`
    DCYGPATH=`cygpath d:\\`
    P2=`echo :$PATH | \
sed "s,\",,g;s,:[cC]:,:$CCYGPATH,g;s,:[dD]:,:$DCYGPATH,g;s,^:,,"`
    P3=""
    save_ifs=$IFS
    IFS=:
    for p in $P2; do
if [ -d "$p" ]; then
C1="`(cygpath -d $p 2>/dev/null || cygpath -w $p)`" 2> /dev/null
C2=`cygpath "$C1" 2> /dev/null` 2> /dev/null
else
C2=""
fi
if [ ! -z "$C2" ]; then
if [ -z "$P3" ];then
P3="$C2"
else
P3="$P3:$C2"
fi
fi
done
IFS=$save_ifs

    echo_setenv OVERRIDE_TARGET win32 ';'
    echo_setenv CC cc.sh ';'
    echo_setenv CXX cc.sh ';'
    echo_setenv AR ar.sh ';'
    echo_setenv RANLIB true ';'
    echo_setenv OVERRIDE_CONFIG_CACHE "$ERL_TOP/erts/autoconf/win32.config.cache"
    echo_setenv PATH "$ERL_TOP/erts/etc/win32/cygwin_tools/vc:$ERL_TOP/erts/etc/win32/cygwin_tools:$P3"
    echo_envinfo
}

echo_env_mingw32 ()
{
    #echo_envinfo
    if [ X"$SHELL" = X"" ]; then
echo "You need to export the shell variable first," \
"for bourne-like shells, type:" >&2
echo 'export SHELL' >&2
echo "and for csh-like shells, type:" >&2
echo 'setenv SHELL $SHELL' >&2
echo " - then try again." >&2
exit 1
    fi
echo_env_erltop
    CCYGPATH=`cygpath c:\\`
    DCYGPATH=`cygpath d:\\`
    P2=`echo :$PATH | \
sed "s,\",,g;s,:[cC]:,:$CCYGPATH,g;s,:[dD]:,:$DCYGPATH,g;s,^:,,"`
    P3=""
    save_ifs=$IFS
    IFS=:
    for p in $P2; do
if [ -d "$p" ]; then
C1="`(cygpath -d $p 2>/dev/null || cygpath -w $p)`" 2> /dev/null
C2=`cygpath "$C1" 2> /dev/null` 2> /dev/null
else
C2=""
fi
if [ ! -z "$C2" ]; then
if [ -z "$P3" ];then
P3="$C2"
else
P3="$P3:$C2"
fi
fi
done
found=false
for p in $P3; do
if [ -f "$p/mingw32-gcc.exe" ]; then
found=$p
fi
done
found2=false
for p in $P3; do
if [ -f "$p/wmc.exe" ]; then
found2=$p
fi
done
IFS=$save_ifs
    if [ X"$found" = X"false" ]; then
echo "Could not find mingw32-gcc in PATH, build with mingw not possible!" >&2
return
fi

if [ X"$found2" = X"false" ]; then
echo "Could not find wmc.exe in PATH, part of wine for windows, " >&2
echo "needed for message file compilation: http://wine.sourceforge.net!!" >&2
return
fi


echo_setenv OVERRIDE_TARGET win32 ';'
    echo_setenv MINGW_EXE_PATH $found ';'
    echo_setenv WINE_EXE_PATH $found2 ';'
    echo_setenv CC cc.sh ';'
    echo_setenv CXX cc.sh ';'
    echo_setenv AR ar.sh ';'
    echo_setenv RANLIB true ';'
    echo_setenv PATH "$ERL_TOP/erts/etc/win32/cygwin_tools/mingw:$ERL_TOP/erts/etc/win32/cygwin_tools:$P3"
    echo_envinfo
}

lookup_prog_in_path ()
{
    PROG=$1
    save_ifs=$IFS
    IFS=:
    for p in $PATH; do
# In cygwin the programs are not always executable and have .exe suffix...
if [ "X$TARGET" = "Xwin32" ]; then
if [ -f $p/$PROG.exe ]; then
echo $p/$PROG
break;
fi
else
if [ -x $p/$PROG ]; then
echo $p/$PROG
break;
fi
fi
done
IFS=$save_ifs
}

setup_make ()
{
    if [ -z "$MAKE" ]; then
case $TARGET in
win32)
MAKE=make;;
*)
if [ "X$CLEARCASE_MAKE_COMPAT" = "Xgnu" -a \
X"$CLEARCASE_ROOT" != X"" -a \
-n "`lookup_prog_in_path clearmake`" ]; then
clearmake="clearmake -V"
MAKE=$clearmake
else
if [ -n "`lookup_prog_in_path gmake`" ]; then
MAKE=gmake
else
MAKE=make
fi
fi;;
       esac
fi
export MAKE
}
    
do_noboot_lib_and_erts ()
{
    setup_make
    EMULATORS=emulator
    if [ X`$MAKE is_cross_configured` = Xyes ]; then
TARGET=`$MAKE target_configured`
    fi
if [ "x$MAKE" != "x$clearmake" ]; then
$MAKE MAKE="$MAKE" TARGET=$TARGET OTP_SMALL_BUILD=$OTP_SMALL_BUILD depend || exit 1;
    fi
    $MAKE MAKE="$MAKE" TARGET=$TARGET OTP_SMALL_BUILD=$OTP_SMALL_BUILD TYPE=$TYPE FLAVOR=$FLAVOR noboot || exit 1
}

do_primary ()
{
    setup_make
    if [ "x$OVERRIDE_TARGET" != "x" -a "x$OVERRIDE_TARGET" != "xwin32" ]; then
echo "OVERRIDE_TARGET set" >&2
exit 1
    else
$MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET primary_bootstrap || exit 1;
    fi
}

do_primary_git ()
{
    setup_make
    if [ "x$OVERRIDE_TARGET" != "x" -a "x$OVERRIDE_TARGET" != "xwin32" ]; then
do_primary_cross
    else
$MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET primary_bootstrap || exit 1;
    fi
git add -A bootstrap/lib/kernel \
        bootstrap/lib/stdlib \
bootstrap/lib/compiler \
bootstrap/lib/orber/include \
bootstrap/bin
    git commit --no-verify -m 'Update primary bootstrap'
}


do_prepare ()
{
    CT=`lookup_prog_in_path cleartool`
    if [ X"$CLEARCASE_ROOT" = X"" -o X"$CT" = X"" ]; then
echo "To prepare for update of primary bootstrap, you need to run in a clearcase view." >&2
return
fi

if [ X"$ERL_TOP" = X"" ]; then
echo "ERL_TOP is not set." >&2
return
fi

    $CT ls -rec -view_only $ERL_TOP/bootstrap | xargs rm -rf

    $CT find $ERL_TOP/bootstrap -cview -nxname -print | xargs $CT co -nc
    echo '*****************************************************'
    echo "Prepared for new bootstrap build - "
    echo "directory bootstrap clean and completely checked out."
    echo '*****************************************************'
}

do_commit ()
{
    CT=`lookup_prog_in_path cleartool`
    if [ X"$CLEARCASE_ROOT" = X"" -o X"$CT" = X"" ]; then
echo "To prepare for update of primary bootstrap, you need to run in a clearcase view." >&2
return
fi

if [ X"$ERL_TOP" = X"" ]; then
echo "ERL_TOP is not set." >&2
return
fi


for x in compiler kernel stdlib orber/include; do
files=`$CT lspriv -do $ERL_TOP/bootstrap/lib/$x`
for y in $files; do
echo "Creating $y"
$CT mkelem -nc $y
done
done
    $CT lsco -rec -me -cview -s $ERL_TOP/bootstrap | xargs $CT ci -nc -ident
    $CT lsco -d -me -cview -s $ERL_TOP/bootstrap | xargs $CT ci -nc -ident

    $CT ls -rec -view_only -nxname $ERL_TOP/bootstrap | xargs rm -rf


    echo '*****************************************************'
    echo "Checked in primary bootstrap."
    echo '*****************************************************'
}

do_cancel ()
{
    CT=`lookup_prog_in_path cleartool`
    if [ X"$CLEARCASE_ROOT" = X"" -o X"$CT" = X"" ]; then
echo "To prepare for update of primary bootstrap, you need to run in a clearcase view." >&2
return
fi

if [ X"$ERL_TOP" = X"" ]; then
echo "ERL_TOP is not set." >&2
return
fi
NOTEMPTY=`$CT lsco -rec -me -cview -s $ERL_TOP/bootstrap`
    if [ X"$NOTEMPTY" != X"" ]; then
$CT lsco -rec -me -cview -s $ERL_TOP/bootstrap | xargs $CT unco -rm
$CT unco $ERL_TOP/bootstrap
    fi
    $CT ls -rec -view_only $ERL_TOP/bootstrap | xargs rm -rf
    echo '*****************************************************'
    echo "Cancelled all checkouts for primary bootstrap."
    echo '*****************************************************'

}
do_prepare_prel ()
{
    CT=`lookup_prog_in_path cleartool`
    if [ X"$CLEARCASE_ROOT" = X"" -o X"$CT" = X"" ]; then
echo "To prepare for update of preloaded code, you have to run in a Clearcase view" >&2
return
fi

if [ X"$ERL_TOP" = X"" ]; then
echo "ERL_TOP is not set." >&2
return
fi

setup_make
    (cd $ERL_TOP/erts/preloaded/src && $MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET prepare) || exit 1
    echo '*****************************************************'
    echo "Prepared for new preloaded code build - "
    echo "Directory ERL_TOP/erts/preloaded/ebin completely"
    echo "checked out."
    echo '*****************************************************'
}

do_update_prel ()
{
    CT=`lookup_prog_in_path cleartool`

    if [ X"$ERL_TOP" = X"" ]; then
echo "ERL_TOP is not set." >&2
return
fi

setup_make
    (cd $ERL_TOP/erts/preloaded/src && $MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET clean)
    $MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET preloaded || exit 1
    (cd $ERL_TOP/erts/preloaded/src && $MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET copy)
    echo '*****************************************************'
    echo "Rebuilt preloaded code."
    echo '*****************************************************'
}

do_update_prel_git ()
{
    setup_make
    (cd $ERL_TOP/erts/preloaded/src && $MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET clean)
    $MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET preloaded || exit 1
    (cd $ERL_TOP/erts/preloaded/src && $MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET copy)
    git add -A $ERL_TOP/erts/preloaded/ebin/*.beam
    git commit -m 'Update preloaded modules'
}

do_commit_prel ()
{
    CT=`lookup_prog_in_path cleartool`
    if [ X"$CLEARCASE_ROOT" = X"" -o X"$CT" = X"" ]; then
echo "To prepare for update of primary bootstrap, you need to run in a clearcase view." >&2
return
fi

if [ X"$ERL_TOP" = X"" ]; then
echo "ERL_TOP is not set." >&2
return
fi
setup_make

    (cd $ERL_TOP/erts/preloaded/ebin && $CT ci -ident -nc *.beam)
    (cd $ERL_TOP/erts/preloaded && $CT ci -ident -nc ebin)

    echo '*****************************************************'
    echo "Checked in preloaded code."
    echo '*****************************************************'
}

do_cancel_prel ()
{
    CT=`lookup_prog_in_path cleartool`
    if [ X"$CLEARCASE_ROOT" = X"" -o X"$CT" = X"" ]; then
echo "To prepare for update of primary bootstrap, you need to run in a clearcase view." >&2
return
fi

if [ X"$ERL_TOP" = X"" ]; then
echo "ERL_TOP is not set." >&2
return
fi
setup_make
    (cd $ERL_TOP/erts/preloaded/src && $MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET cancel) || exit 1
    echo '*****************************************************'
    echo "Cancelled all checkouts for preloaded code."
    echo '*****************************************************'

}

do_boot ()
{
    setup_make

    # Bootstrap if we are cross compiling
    if [ X`$MAKE is_cross_configured` = Xyes ]; then
TARGET=$BUILDSYS
$MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT CROSS_COMPILING=no TARGET=$TARGET bootstrap || exit 1
TARGET=`$MAKE target_configured`
    elif [ "x$OVERRIDE_TARGET" != "x" -a "x$OVERRIDE_TARGET" != "xwin32" ]; then
hide_vars OVERRIDE_TARGET TARGET
TARGET=$BUILDSYS
$MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET bootstrap || exit 1

restore_vars OVERRIDE_TARGET TARGET
    fi

    # Build it (including bootstrap if not cross compiling)
    $MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET all || exit 1
}

do_boot_emu ()
{
    setup_make
    if [ X`$MAKE is_cross_configured` = Xyes ]; then
TARGET=`$MAKE target_configured`
    fi
    $MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET emulator || exit 1
}

do_release ()
{
    setup_make
    if [ X`$MAKE is_cross_configured` = Xyes ]; then
TARGET=`$MAKE target_configured`
    fi
    $MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET \
RELEASE_ROOT=$1 OTP_STRICT_INSTALL=$OTP_STRICT_INSTALL \
release || exit 1
}

do_tests ()
{
    setup_make
    if [ X`$MAKE is_cross_configured` = Xyes ]; then
TARGET=`$MAKE target_configured`
    fi
if [ X"$1" = X"" ]; then
$MAKE MAKE="$MAKE" TARGET=$TARGET release_tests || exit 1
    else
$MAKE MAKE="$MAKE" TARGET=$TARGET TESTSUITE_ROOT=$1 release_tests || exit 1
    fi
}

do_debuginfo_win32 ()
{
    setup_make
    (cd erts/emulator && $MAKE MAKE="$MAKE" TARGET=$TARGET FLAVOR=smp debug &&\
$MAKE MAKE="$MAKE" TARGET=$TARGET FLAVOR=plain debug) || exit 1
    if [ -z "$1" ]; then
RELDIR=$ERL_TOP/release/$TARGET
    else
RELDIR="$1"
    fi
BINDIR=$ERL_TOP/bin/$TARGET
    EVSN=`grep '^VSN' erts/vsn.mk | sed 's,^VSN.*=[^0-9]*\([0-9].*\)$,@\1,g;s,^[^@].*,,g;s,^@,,g'`
    for f in beam.debug.dll beam.debug.smp.dll beam.pdb beam.smp.pdb erl.pdb werl.pdb erlexec.pdb; do
if [ -f $BINDIR/$f ]; then
rm -f $RELDIR/erts-$EVSN/bin/$f
cp $BINDIR/$f $RELDIR/erts-$EVSN/bin/$f
fi
done
}

do_installer_win32 ()
{
    setup_make
    installer_dir=$ERL_TOP/erts/etc/win32/nsis
    (cd $installer_dir; $MAKE MAKE="$MAKE" TARGET=$TARGET TESTROOT=$1 release) || exit 1
}

do_copy_primary_bootstrap ()
{
    if [ "x$1" = "x" ]; then
echo "Missing bootstrap source top" 1>&2
exit 1
    fi
if [ ! -d $1 ]; then
echo "Invalid bootstrap source top" 1>&2
exit 1
    fi
if [ "x$2" = "x" ]; then
echo "Missing bootstrap root" 1>&2
exit 1
    fi
if [ ! -d $2 ]; then
echo "Invalid bootstrap root" 1>&2
exit 1
    fi

bootstrap=$2/bootstrap
    bootstrap_src_top=$1
    lib_src=$bootstrap_src_top/lib

    # kernel
    test -d $bootstrap/lib/kernel/ebin || mkdir -p $bootstrap/lib/kernel/ebin
    test -d $bootstrap/lib/kernel/include || mkdir -p $bootstrap/lib/kernel/include
    cp -f $lib_src/kernel/ebin/*.beam $bootstrap/lib/kernel/ebin
    cp -f $lib_src/kernel/ebin/*.app* $bootstrap/lib/kernel/ebin
    cp -f $lib_src/kernel/include/*.hrl $bootstrap/lib/kernel/include

    # stdlib
    test -d $bootstrap/lib/stdlib/ebin || mkdir -p $bootstrap/lib/stdlib/ebin
    test -d $bootstrap/lib/stdlib/include || mkdir -p $bootstrap/lib/stdlib/include
    cp -f $lib_src/stdlib/ebin/*.beam $bootstrap/lib/stdlib/ebin
    cp -f $lib_src/stdlib/ebin/*.app* $bootstrap/lib/stdlib/ebin
    cp -f $lib_src/stdlib/include/*.hrl $bootstrap/lib/stdlib/include

    # compiler
    test -d $bootstrap/lib/compiler/ebin || mkdir -p $bootstrap/lib/compiler/ebin
    cp -f $lib_src/compiler/ebin/*.beam $bootstrap/lib/compiler/ebin
    cp -f $lib_src/compiler/ebin/*.app* $bootstrap/lib/compiler/ebin

    # orber include
    test -d $bootstrap/lib/orber/include || mkdir -p $bootstrap/lib/orber/include
    cp -f $lib_src/orber/include/* $bootstrap/lib/orber/include

    # bootstrap bin
    if [ $bootstrap_src_top != $ERL_TOP ]; then
test -d $bootstrap/bin || mkdir -p $bootstrap/bin
cp -f $bootstrap_src_top/bin/* $bootstrap/bin
    fi

}

do_save_bootstrap ()
{
    if [ ! -f $ERL_TOP/prebuilt.files ]; then
echo "This is not a pre-built source distribution" 1>&2
exit 1
    fi
if [ -d $ERL_TOP/bootstrap/lib ]; then
echo "Bootstrap already exist" 1>&2
exit 1
    fi

do_copy_primary_bootstrap $ERL_TOP $ERL_TOP
}

do_remove_prebuilt_files ()
{
    do_save_bootstrap
    for file in $ERL_TOP/`cat $ERL_TOP/prebuilt.files` ; do
rm -f $file
    done
}

# main

check_erltop

cd $ERL_TOP

determine_version_controller

# Unset ERL_FLAGS and ERL_<Release>_FLAGS to prevent, for instance,
# a value of "-hybrid" to run the hybrid emulator during bootstrap.
sys_vsn=`awk '/SYSTEM_VSN = / {print $3}' < erts/vsn.mk`
sys_erl_flags="ERL_${sys_vsn}_FLAGS"
unset ERL_FLAGS
unset ${sys_erl_flags}

# Target first guess, won't necessarily hold, may be changed for
# certain parameters.
if [ X"$TARGET" = X"" ]; then
TARGET=`$ERL_TOP/erts/autoconf/config.guess`
fi
BUILDSYS=$TARGET

case $TARGET in
    *-cygwin)
if [ X"$BUILD_FOR_CYGWIN" = X"" ]; then
if [ X"$OVERRIDE_TARGET" = X"" -a X"$1" != X"env_win32" -a X"$1" != X"env_mingw32" ];then
echo "Building for windows, you should do the " \
"following first:" >&2
echo 'eval `./otp_build env_win32`' >&2
echo 'please note that there are backticks (``) in' \
'the command'
exit 1
fi
fi;;
*)
;;
esac

if [ ! -z "$OVERRIDE_TARGET" ]; then
TARGET="$OVERRIDE_TARGET"
fi

# Setting a bootstrap root is inherently very dangerous now that the bootstrap
# is prebuilt, avoid it if not forced by setting FORCE_BOOTSTRAP_ROOT=true!

if [ X"$FORCE_BOOTSTRAP_ROOT" != X"true" ]; then
BOOTSTRAP_ROOT="$ERL_TOP"
else
if [ -z "$BOOTSTRAP_ROOT" ]; then
BOOTSTRAP_ROOT="$ERL_TOP"
    fi
fi

if [ X"$1" = X"" ]; then
usage
exit 1
fi

if [ X"$2" = X"-a" ]; then
minus_a_flag=true
OTP_SMALL_BUILD=
else
OTP_SMALL_BUILD=true
minus_a_flag=false
fi
export OTP_SMALL_BUILD

TYPE=
case "$1" in
  all)
  do_autoconf;
  do_configure;
  do_boot;
  if [ $minus_a_flag = true ]; then
shift
fi;
  do_release "$2";;
setup)
shift;
if [ $minus_a_flag = true ]; then
shift
fi;
do_autoconf;
do_configure "$@";
do_boot;;
lazy_setup)
shift;
if [ $minus_a_flag = true ]; then
shift
fi;
do_lazy_configure "$@";
do_boot;;
autoconf)
do_autoconf;;
configure)
shift;
do_configure "$@";;
lazy_configure)
shift;
do_lazy_configure "$@";;
lazy_configure_clean)
shift;
do_lazy_configure_clean;;
lazy_configure_target_clean)
shift;
do_lazy_configure_target_clean;;
opt)
do_boot;;
plain|smp|hybrid)
if [ $minus_a_flag = false ]; then
TYPE=opt
fi;
FLAVOR=$1
if [ $FLAVOR = opt ]; then
FLAVOR=plain
fi
do_boot;;
prepare_primary)
do_prepare;;
update_primary)
case $version_controller in
git) do_primary_git ;;
clearcase) do_primary ;;
none) do_primary ;;
esac ;;
commit_primary)
do_commit;;
cancel_primary)
do_cancel;;
prepare_preloaded)
do_prepare_prel;;
update_preloaded)
case $version_controller in
git) do_update_prel_git ;;
clearcase) do_update_prel ;;
none) do_update_prel ;;
esac ;;
commit_preloaded)
do_commit_prel;;
cancel_preloaded)
do_cancel_prel;;
        primary)
echo "Primary bootstrap is under version control since R13";
echo "Use {prepare,update,commit}_primary if you really are";
echo "updating the primary bootstrap...";;
boot)
do_boot;;
        emulator)
do_boot_emu;;
release)
if [ $minus_a_flag = true ]; then
shift
fi;
do_release "$2";;
tests)
if [ $minus_a_flag = true ]; then
shift
fi;
do_tests "$2";;
        remove_prebuilt_files)
do_remove_prebuilt_files;;
        save_bootstrap)
do_save_bootstrap;;
        copy_primary_bootstrap)
do_copy_primary_bootstrap $2 $3;;
installer_win32)
if [ $minus_a_flag = true ]; then
shift
fi;
do_installer_win32 "$2";;
debuginfo_win32)
if [ $minus_a_flag = true ]; then
shift
fi;
do_debuginfo_win32 "$2";;
env_win32)
echo_env_win32;;
env_mingw32)
echo_env_mingw32;;
env_vxworks)
echo_env_vxworks "$2";;
env_cross)
echo_env_cross "$2";;
        env_bootstrap)
echo_env_bootstrap;;
*)
usage;;
esac
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