~ubuntu-branches/ubuntu/karmic/erlang/karmic

#! /bin/sh

# Expected autoconf version
EXPECTED_AUTOCONF_VERSION=2.59

# clearmake command to use
clearmake=false

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

# Utility functions
usage ()
{
    echo "Available options:"
    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 "    smp [-a] - build a small Erlang system, smp flavor"
    echo "    hybrid [-a] - build a small Erlang system, hybrid flavor"
    echo "    nofrag [-a] - build a small Erlang system, nofrag flavor"
    echo "    boot [-a] - bootstraps and build 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 "    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 ""
    echo "Before trying to cross compile, set environment via the following option"
    echo "Please note that the path to the configuration file should be absolute."
    echo "    env_cross <absolute path to cross conf file> - echo environment settings for cross compilation, use with eval"
    echo ""
    echo "The following options concern the primary bootstrap."
    echo "{prepare,update,commit,cancel}_primary is for actually updating"
    echo "the checked in derivates of the main code base, they are not for"
    echo "managing a downloaded spource-tree."
    echo "    prepare_primary - prepares for building primary bootstrap (only in Clearcase)"
    echo "    update_primary - creates the primary bootstrap, the one shipped"
    echo "    commit_primary - commits a primary bootstrap (only in Clearcase)"
    echo "    cancel_primary - uncheckout a primary bootstrap (only in Clearcase)"
    echo ""
    echo "The following options concern preloaded code."
    echo "They are, like the primary bootstrap, mainly the concern of the"
    echo "main developers."
    echo "    prepare_preloaded - prepares for building preloaded code (only in Clearcase)"
    echo "    update_preloaded - creates the preloaded beam code, the one shipped"
    echo "    commit_preloaded - commits the preloaded code (only in Clearcase)"
    echo "    cancel_preloaded - uncheckout preloaded code (only in Clearcase)"
}

xcomp_fail ()
{
    echo "The mandatory cross compilation variable" $1 "is not set in" $2 ",aborting" >&2
    exit 1
}

check_xcomp_file ()
{
    if test "x$erl_xcomp_os" = "x"; then
	xcomp_fail erl_xcomp_os $1
    fi
    if test "x$erl_xcomp_hw" = "x"; then
	xcomp_fail erl_xcomp_hw $1
    fi
    if test "x$erl_xcomp_man" = "x"; then
	xcomp_fail erl_xcomp_man $1
    fi
    if test "x$erl_xcomp_target_xtra" = "x"; then
	xcomp_fail erl_xcomp_target_extra $1
    fi
    if test "x$erl_xcomp_void_p" = "x"; then
	xcomp_fail erl_xcomp_void_p $1
    fi
    if test "x$erl_xcomp_short" = "x"; then
	xcomp_fail erl_xcomp_short $1
    fi
    if test "x$erl_xcomp_int" = "x"; then
	xcomp_fail erl_xcomp_int $1
    fi
    if test "x$erl_xcomp_long" = "x"; then
	xcomp_fail erl_xcomp_long $1
    fi
    if test "x$erl_xcomp_long_long" = "x"; then
	xcomp_fail erl_xcomp_long_long $1
    fi
    if test "x$erl_xcomp_sizeof_size_t" = "x"; then
	xcomp_fail erl_xcomp_sizeof_size_t $1
    fi
    if test "x$erl_xcomp_sizeof_off_t" = "x"; then
	xcomp_fail erl_xcomp_sizeof_off_t $1
    fi
    if test "x$erl_xcomp_os" = "xlinux"; then
	if test "x$erl_xcomp_linux_kernel" = "x"; then
	    xcomp_fail erl_xcomp_linux_kernel $1
	fi
    fi
    return 0
}


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`
		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 $?
} 



# Execution of the different options

# Special static config flags for certain platforms are set here  
set_config_flags ()
{
	if target_contains linux; then 
	        XX=`echo $* | grep -v able-hipe`
		if [ "$*" = "$XX" ]; then 
		    CONFIG_FLAGS="--disable-hipe" 
		fi
	fi
	if target_contains "univel-sysv4"; then
		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" 
	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

	CONFIG_FLAGS="$CONFIG_FLAGS $*"
	export CONFIG_FLAGS;
}
	
do_autoconf ()		
{
        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 [ -d erts/autom4te.cache ]; then
	    echo "Cleaning erts/autom4te.cache"
	    rm -f erts/autom4te.cache/*
	fi

	save_ot="$OVERRIDE_TARGET"
	save_t="$TARGET"
	if [ ! -z "$OVERRIDE_CONFIGURE" ]; then
	    echo "Autoconf disabled on target $TARGET, but is performed on host" >&2
	    OVERRIDE_TARGET=
	    export OVERRIDE_TARGET
	    # We still use erts configure for erl_interface and VxWorks
	    case "$TARGET" in
		*vxworks*)
		    AUTOCONF_SUBDIRS=`echo $AUTOCONF_SUBDIRS | \
					sed -e 's,lib/erl_interface,,' \
					    -e 's,lib/gs,,' \
					    -e 's,lib/megaco,,'`
		    ;;
	    esac
	    TARGET=`$ERL_TOP/erts/autoconf/config.guess`
	fi
	
	for d in $AUTOCONF_SUBDIRS; do
		if [ -f $d/configure.in ]; then
			echo "=== running autoconf in $d"
			( cd $d && autoconf ) || exit 1
		fi
		if [ x$d = x"erts" ]; then
			echo "=== running autoheader in $d"
			( cd $d && autoheader configure.in > config.h.in ) \
			    || exit 1
		fi
	done
	OVERRIDE_TARGET="$save_ot"
	export OVERRIDE_TARGET
	TARGET="$save_t"
        if target_contains win32; then
	    WANT_AUTOCONF_VER=$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
}

do_configure ()
{
    setup_make
    mk_targetdir
    save_ot="$OVERRIDE_TARGET"
    save_t="$TARGET"
    if [ ! -z "$OVERRIDE_CONFIGURE" ]; then
	case $TARGET in
	    vxworks_*)
		( cd erts/autoconf && \
		  $ERL_TOP/erts/autoconf/configure.vxworks $TARGET )
		  echo "Configuring for build host too..." >&2
		  OVERRIDE_TARGET=
		  export OVERRIDE_TARGET
		  TARGET=`$ERL_TOP/erts/autoconf/config.guess`
		  mk_targetdir;;
	    *)
		echo "Unexpected target when ordinary configure is" \
			"overridden" >&2
		echo 'check if $OVERRIDE_CONFIGURE and $OVERRIDE_TAGET' \
		        'environments are correct.' >&2
		exit 1;;
	esac
    else
	if [ "x$OVERRIDE_TARGET" != "x" -a "x$OVERRIDE_TARGET" != "xwin32" ]; then
	    save_CONFIG_FLAGS="$CONFIG_FLAGS"
	    if [ "x$erl_xcomp_configure_flags" != "x" ]; then
		set_config_flags $erl_xcomp_configure_flags
	    else
		set_config_flags $CONFIG_FLAGS "$@"
	    fi
	    COMPFIX=""
	    save_CC="$CC"
	    save_LD="$LD"
	    save_CFLAGS="$CFLAGS"
	    save_LDFLAGS="$LDFLAGS"
	    save_RANLIB="$RANLIB"
	    save_AR="$AR"
	    save_DED_LD="$DED_LD"
	    save_DED_LDFLAGS="$DED_LDFLAGS"
	    save_DED_LD_FLAG_RUNTIME_LIBRARY_PATH="$DED_LD_FLAG_RUNTIME_LIBRARY_PATH"
	    save_CPP="$CPP"
	    if [ "x$erl_xcomp_cc" != "x" ]; then
		CC="$erl_xcomp_cc"
	    fi
	    if [ "x$erl_xcomp_cpp" != "x" ]; then
		CPP="$erl_xcomp_cpp"
	    fi
	    if [ "x$erl_xcomp_ld" != "x" ]; then
		LD="$erl_xcomp_ld"
	    fi
	    if [ "x$erl_xcomp_cflags" != "x" ]; then
		CFLAGS="$erl_xcomp_cflags"
	    fi
	    if [ "x$erl_xcomp_ldflags" != "x" ]; then
		LDFLAGS="$erl_xcomp_ldflags"
	    fi
	    if [ "x$erl_xcomp_ranlib" != "x" ]; then
		RANLIB="$erl_xcomp_ranlib"
	    fi
	    if [ "x$erl_xcomp_ar" != "x" ]; then
		AR="$erl_xcomp_ar"
	    fi
	    if [ "x$erl_xcomp_ded_ld" != "x" ]; then
		DED_LD="$erl_xcomp_ded_ld"
	    fi
	    if [ "x$erl_xcomp_ded_ld_runtime_library_path" != "x" ]; then
		DED_LD_FLAG_RUNTIME_LIBRARY_PATH="$erl_xcomp_ded_ld_runtime_library_path"
	    fi
	    if [ "x$erl_xcomp_ded_ldflags" != "x" ]; then
		DED_LDFLAGS="$erl_xcomp_ded_ldflags"
	    fi
	    export CC LD CFLAGS LDFLAGS RANLIB AR DED_LD DED_LDFLAGS DED_LD_FLAG_RUNTIME_LIBRARY_PATH CPP

	    #
	    # The environment for compilers, cflags et al are sometimes hard
	    # to pass along in recursive configure, why each cross configure 
	    # is run separately instead. This variable (crossdirs) need to
	    # be updated whenever a new application needs a configure
	    # of it's own, at least until I get the recirsive configure
	    # to work for the complicated environment needed by i.e. vxworks 
	    # compilers. It's a kludge, but a working one...
	    #

	    crossdirs="erts lib/common_test lib/erl_interface lib/gs lib/megaco lib/odbc lib/snmp lib/wx"

	    if [ -z "$ONLY_ERTS" ]; then
		for x in $crossdirs; do
		    if [ -f "$x/configure" ]; then
			(cd $x;./configure --host=$erl_xcomp_hw --with-xcompconf=$ERL_XCOMP_CONF $CONFIG_FLAGS) || exit 1
		    fi
		done
	    else
		(cd $ERL_TOP/erts;./configure --host=$erl_xcomp_hw --with-xcompconf=$ERL_XCOMP_CONF $CONFIG_FLAGS) || exit 1
	    fi
	    CC="$save_CC"
	    LD="$save_LD"
	    CFLAGS="$save_CFLAGS"
	    LDFLAGS="$save_LDFLAGS"
	    RANLIB="$save_RANLIB"
	    AR="$save_AR"
	    DED_LD="$save_DED_LD"
	    DED_LDFLAGS="$save_DED_LDFLAGS"
	    DED_LD_FLAG_RUNTIME_LIBRARY_PATH="$save_DED_LD_FLAG_RUNTIME_LIBRARY_PATH"
	    CPP="$save_CPP"
	    export CC LD CFLAGS LDFLAGS RANLIB AR DED_LD DED_LDFLAGS DED_LD_FLAG_RUNTIME_LIBRARY_PATH CPP
	    echo "Configuring for build host too..." >&2
	    OVERRIDE_TARGET=
	    export OVERRIDE_TARGET
	    TARGET=`$ERL_TOP/erts/autoconf/config.guess`
	    mk_targetdir
	    CONFIG_FLAGS="$save_CONFIG_FLAGS"
	fi
    fi
    set_config_flags $CONFIG_FLAGS "$@"
    if [ -z "$ONLY_ERTS" ]; then
	./configure $CONFIG_FLAGS || exit 1
    else
	echo "erts/configure $CONFIG_FLAGS"
	(cd $ERL_TOP/erts; ./configure $CONFIG_FLAGS) || exit 1
    fi
    OVERRIDE_TARGET="$save_ot"
    export OVERRIDE_TARGET
    TARGET="$save_t"
}

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
    set_config_flags $CONFIG_FLAGS "$@"
    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="$CONFIG_FLAGS"                              \
		CONFIGURE_DIR=$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_cross ()
{
    if [ -z "$1" ]; then 
	echo "env_cross requires path to cross compilation configuration" >&2
	exit 1
    fi

    if [ ! -f $1 ]; then
	echo "No such file: $1" >&2
	exit 1
    fi
    . $1
    check_xcomp_file $1
    echo_env_erltop
    echo_setenv ERL_XCOMP_CONF $1 ';'
    echo_setenv OVERRIDE_TARGET $erl_xcomp_target
    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
    P2=`echo $PATH | \
	sed 's,",,g;s,:[cC]:,:/cygdrive/c,g;s,:[dD]:,:/cygdrive/d,g'`
    P3=""
    save_ifs=$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
    P2=`echo $PATH | \
	sed 's,",,g;s,:[cC]:,:/cygdrive/c,g;s,:[dD]:,:/cygdrive/d,g'`
    P3=""
    save_ifs=$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$MAKE" != "x$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_cross ()
{
    save_t="$TARGET"
    save_ot="$OVERRIDE_TARGET"
    OVERRIDE_TARGET=
    export OVERRIDE_TARGET
    TARGET=`$ERL_TOP/erts/autoconf/config.guess`
    $MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET primary_bootstrap || exit 1;
    $MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET all_bootstraps || exit 1
    OVERRIDE_TARGET="$save_ot"
    export OVERRIDE_TARGET
    TARGET="$save_t"
}

do_primary ()
{
    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
}

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/prelaoded/ebin completely"
    echo "checked out."
    echo '*****************************************************'
}

do_update_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 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_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_cross ()
{
    SAVE_TARGET=$TARGET
    SAVE_OVERRIDE_TARGET=$OVERRIDE_TARGET
    OVERRIDE_TARGET=
    TARGET=`$ERL_TOP/erts/autoconf/config.guess`
    
    $MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET all_bootstraps || exit 1;
    $MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET local_setup || exit 1;
    TARGET=$SAVE_TARGET
    OVERRIDE_TARGET=$SAVE_OVERRIDE_TARGET
    $MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET libs || exit 1;
    $MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET depend || exit 1;
    $MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET emulator || exit 1;
}

do_boot_emu_cross ()
{
    $MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET emulator || exit 1;
}

do_boot ()
{
    setup_make
    if [ "x$OVERRIDE_TARGET" != "x" -a "x$OVERRIDE_TARGET" != "xwin32" ]; then
	do_boot_cross
    else
	$MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET all || exit 1
    fi
}

do_boot_emu ()
{
    setup_make
    if [ "x$OVERRIDE_TARGET" != "x" -a "x$OVERRIDE_TARGET" != "xwin32" ]; then
	do_boot_emu_cross
    else
	$MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET emulator || exit 1
    fi
}

do_release ()
{
    setup_make
    $MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET RELEASE_ROOT=$1 release || exit 1
}

do_tests ()
{
    setup_make
    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

# 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

if [ "x$ERL_XCOMP_CONF" != "x" ]; then
    . $ERL_XCOMP_CONF
fi

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|nofrag)
		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)
		do_primary;;
	commit_primary)
		do_commit;;
	cancel_primary)
		do_cancel;;
	prepare_preloaded)
		do_prepare_prel;;
	update_preloaded)
		do_update_prel;;
	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