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# Force failed command to exit this shell - all commands must report success

set -e

echo

echo

#------------------------------------------------------------------------------

# Takes $1 and removes all relative paths (. and ..) from it.  The cleaned up

# directory is written to stdout.

#------------------------------------------------------------------------------

function cleanup_dir

{

    DIR_PARTS=`echo $1 | sed "s|/| |g"`

    CLEANUP_DIR=""

    for PART in ${DIR_PARTS}; do

        if [ "${PART}" != "." ]; then

            if [ "${PART}" == ".." ]; then

                CLEANUP_DIR=`echo "${CLEANUP_DIR}" | sed "s|/[^/]*$||"`

            else

                CLEANUP_DIR="${CLEANUP_DIR}/${PART}"

            fi

        fi

    done

    echo ${CLEANUP_DIR}

} 

#------------------------------------------------------------------------------

# Extract arguments - order not important except that the first argument is

# the launch script

#------------------------------------------------------------------------------

unset CLEAN

unset DOWNLOAD_PKG

unset DOWNLOAD_PKG_AUTO

unset XGCC_IN_PATH

unset DEBIAN_PACKAGE

unset APPLY_PATCHES

unset APPLY_MODS

unset CONFIG_VARIENT

for arg in "$@" ; do

    val=${arg##*=}

    tag=${arg%%=*}

    case $tag in

        -clean)                 CLEAN=1;;

        -XGccInPath)            XGCC_IN_PATH=1;;

        -ShellBuild)            SHELL_BUILD="$val";;

        -BuildName)             BUILD_NAME=$val;;

        -BuildVersion)          BUILD_VERSION=$val;;

        -Platform)              PLATFORM=$val;;

        -Type)                  TYPE=$val;;

        -Arch)                  ARCH=$val;;

        -MachType)              MACHTYPE=$val;;

        -BuildRoot)             BUILD_ROOT=$val;;

        -BinDir)                BIN_DIR=$val;;

        -LibDir)                LIB_DIR=$val;;

        -ObjDir)                OBJ_DIR=$val;;

        -PackageBinDir)         PKG_BIN_DIR=$val;;

        -PackageIncDir)         PKG_INC_DIR=$val;;

        -PackageLibDir)         PKG_LIB_DIR=$val;;

        -PackagePkgDir)         PKG_PKG_DIR=$val;;

        -PackageToolDir)        PKG_TOOL_DIR=$val;;

        -PackageToolBin)        PKG_TOOL_BIN_DIR=$val;;

        -PackageToolScript)     PKG_TOOL_SCRIPT_DIR=$val;;

        -PackageDir)            PKG_DIR=$val;;

        -CompilerPath)          COMPILER_DIR="$val";;

        -DownloadPkg)           DOWNLOAD_PKG="$val";;

        -DebianPackage)         DEBIAN_PACKAGE=1;;

        -ApplyPatches)          APPLY_PATCHES=1;;

        -ApplyMods)             APPLY_MODS=1;;

        -ConfigVarient)         CONFIG_VARIENT=$val;;

        *)                      echo "Unknown tag: $tag=$val"

    esac

done

if [ "${DOWNLOAD_PKG}" == "-DownloadPkg" ]; then

    DOWNLOAD_PKG_NAME=${BUILD_NAME}

    DOWNLOAD_PKG_VER=`echo ${BUILD_VERSION} | sed "s|\.[0-9]\+\.cots||"`

    DOWNLOAD_PKG=${DOWNLOAD_PKG_NAME}-${DOWNLOAD_PKG_VER}

else

    DOWNLOAD_PKG_VER=`echo ${DOWNLOAD_PKG} | sed "s|.*-||"`    

    DOWNLOAD_PKG_NAME=`echo ${DOWNLOAD_PKG} | sed "s|-${DOWNLOAD_PKG_VER}||"`    

fi

#------------------------------------------------------------------------------

# Dump JATS information for debugging purposes

#------------------------------------------------------------------------------

echo "================================================================================"

echo "   JATS SUPPLIED FIELDS"

echo "================================================================================"

echo " ShellBuild     = ${SHELL_BUILD}"

echo " BuildName      = ${BUILD_NAME} ${BUILD_VERSION}"

echo " Platform       = ${PLATFORM}"

echo " Type           = ${TYPE}"

echo " Arch           = ${ARCH}"

echo " MachType       = ${MACHTYPE}"

echo " BuildRoot      = ${BUILD_ROOT}"

if [ ${DOWNLOAD_PKG} ]; then

    echo " DownloadPkg    = ${DOWNLOAD_PKG}"

fi    

echo " BinDir         = ${BIN_DIR}"

echo " LibDir         = ${LIB_DIR}"

echo " ObjDir         = ${OBJ_DIR}"

echo " PackageBinDir  = ${PKG_BIN_DIR}"

echo " PackageIncDir  = ${PKG_INC_DIR}"

echo " PackageLibDir  = ${PKG_LIB_DIR}"

echo " PackagePkgDir  = ${PKG_PKG_DIR}"

echo " CompilerDir    = ${COMPILER_DIR}"

echo "================================================================================"

echo

echo

#------------------------------------------------------------------------------

# Determine host and build environments

#------------------------------------------------------------------------------

case ${MACHTYPE} in

    linux_i386)  

        COMPILE_BUILD="i386-cross-linux-gnu"

        ;;

    *)      

        echo "Unknown MACHTYPE=${MACHTYPE}"

        exit 1

        ;;

esac

case ${ARCH} in

    *603E*|*powerpc*)  

        COMPILE_HOST="powerpc-603e-linux-gnu"

        LINUX_HOST_ARCH=powerpc

        ;;

    ARMV9*)  

        COMPILE_HOST="arm-9tdmi-linux-gnu"

        ;;

    *I386*)

        if [ "${PLATFORM}" == "LINUX_I386" ]; then

            COMPILE_HOST="i386-cross-linux-gnu"

        else

            COMPILE_HOST="i586-unknown-linux-gnu"

        fi

        LINUX_HOST_ARCH=x86

        ;;

    *)      

        echo "Unknown ARCH=${ARCH}"

        exit 1

        ;;

esac

# Setup the location of the cross compiler

if [ "${COMPILE_HOST}" == "i386-redhat-linux" ] || [ "${COMPILER_DIR}" == "gcc" ]; then

    XGCC_BASE_DIR=

    XGCC_DIR=

    XGCC=gcc

else

    XGCC_BASE_DIR=`echo ${COMPILER_DIR} | sed 's|/[^/]*/[^/]*$||'`

    XGCC_BASE_DIR=`cleanup_dir ${XGCC_BASE_DIR}`

    XGCC_DIR=${XGCC_BASE_DIR}/${COMPILE_HOST}

    XGCC=${XGCC_DIR}/bin/gcc

fi

# Determine the location of the generated files

CWD=`pwd`

BIN_DIR=`cleanup_dir ${CWD}/${BIN_DIR}`

LIB_DIR=`cleanup_dir ${CWD}/${LIB_DIR}`

OBJ_DIR=`cleanup_dir ${CWD}/${OBJ_DIR}`

PKG_BIN_DIR=`cleanup_dir ${CWD}/${PKG_BIN_DIR}`

PKG_INC_DIR=`cleanup_dir ${CWD}/${PKG_INC_DIR}`

PKG_LIB_DIR=`cleanup_dir ${CWD}/${PKG_LIB_DIR}`

PKG_PKG_DIR=`cleanup_dir ${CWD}/${PKG_PKG_DIR}`

PKG_TOOL_DIR=`cleanup_dir ${CWD}/${PKG_TOOL_DIR}`

PKG_TOOL_BIN_DIR=`cleanup_dir ${CWD}/${PKG_TOOL_BIN_DIR}`

PKG_TOOL_SCRIPT_DIR=`cleanup_dir ${CWD}/${PKG_TOOL_SCRIPT_DIR}`

BASE_DIR=`cleanup_dir ${CWD}/${BUILD_ROOT}`

LCL_SRC_DIR=${BASE_DIR}/src

SHARE_SRC_DIR=${LCL_SRC_DIR}

SHARE_BASE_DIR=${BASE_DIR}

DEB_PKG_DIR=${LIB_DIR}

AFC_DIR=${DEB_PKG_DIR}/afc

AFC_BIN_DIR=${AFC_DIR}/bin

AFC_LIB_DIR=${AFC_DIR}/lib

AFC_SHARE_DIR=${AFC_DIR}/share

# Find the launch script

LAUNCH_SCRIPT=`cleanup_dir ${LCL_SRC_DIR}/${SHELL_BUILD}`

if [ ! -f ${LAUNCH_SCRIPT} ]; then

    echo "Specified shell build script ${LAUNCH_SCRIPT} does not exist."

    exit 1

fi

if [ ${DOWNLOAD_PKG} ]; then

    # This is the set of available download directories, consisting of downloads/

    # and a download directory that is offset from the location of the build

    # script src directory.

    unset TAR_DECOMP_ARG

    TMP=`echo ${SHELL_BUILD} | sed "s|/src/.*||"`

    TMP=`cleanup_dir ${CWD}/${TMP}`

    DOWNLOAD_DIRS="${TMP} ${BASE_DIR}"

    for DDIR in ${DOWNLOAD_DIRS}; do

        TMP=${DDIR}/downloads/${DOWNLOAD_PKG}.tar.bz2

        if [ -e ${TMP} ]; then

            TARBALL_FILE=${TMP}

            SHARE_SRC_DIR=${DDIR}/src

            SHARE_BASE_DIR=${DDIR}

            TAR_DECOMP_ARG=j

        else

            TMP=${DDIR}/downloads/${DOWNLOAD_PKG}.tar.gz

            if [ -e ${TMP} ]; then

                TARBALL_FILE=${TMP}

                SHARE_SRC_DIR=${DDIR}/src

                SHARE_BASE_DIR=${DDIR}

                TAR_DECOMP_ARG=z

            else

                TMP=${DDIR}/downloads/${DOWNLOAD_PKG}.tgz

                if [ -e ${TMP} ]; then

                    TARBALL_FILE=${TMP}

                    SHARE_SRC_DIR=${DDIR}/src

                    SHARE_BASE_DIR=${DDIR}

                    TAR_DECOMP_ARG=z

                fi

            fi

        fi    

    done

    if [ "${TAR_DECOMP_ARG}" == "" ]; then

        echo "Could not find download file ${DOWNLOAD_PKG}.<tar.gz|tar.bz2|tgz> in any of { ${DOWNLOAD_DIRS} }"

        exit 1

    fi

    WORK_DIR=${LCL_SRC_DIR}/${DOWNLOAD_PKG}

else

    WORK_DIR=${LCL_SRC_DIR}/work

fi

INCLUDE="-I${PKG_INC_DIR} -I${BASE_DIR}/local/include -I${BASE_DIR}/interface/include"

LIBPATH="-L${PKG_LIB_DIR} -L${BASE_DIR}/local/lib/${PLATFORM} -L${BASE_DIR}/interface/lib/${PLATFORM}"

# Dump configuration

echo "================================================================================"

echo "   BUILD CONFIGURATION"

echo "================================================================================"

echo " Compile Host   = ${COMPILE_HOST}"

echo " Compile Build  = ${COMPILE_BUILD}"

echo " XGCC Base Dir  = ${XGCC_BASE_DIR}"

echo " XGCC Dir       = ${XGCC_DIR}"

echo " XGCC           = ${XGCC}"

echo " Base Dir       = ${BASE_DIR}"

if [ ${DOWNLOAD_PKG} ]; then

    echo " Tarball File   = ${TARBALL_FILE}"

    echo " Working Dir    = ${WORK_DIR}"

fi  

unset AFTER_FIRST

for INC in ${INCLDUE}; do

    if [ ${AFTER_FIRST} ]; then

        echo "                  ${INC}"

    else

        echo " Includes       = ${INC}"

        AFTER_FIRST=1

    fi

done

unset AFTER_FIRST

for LIB in ${LIBPATH}; do

    if [ ${AFTER_FIRST} ]; then

        echo "                  ${LIB}"

    else

        echo " Library Path   = ${LIB}"

        AFTER_FIRST=1

    fi

done

echo " Debian Package = ${DEB_PKG_DIR}"

echo " Launch Script  = ${LAUNCH_SCRIPT}"

echo "================================================================================"

echo

echo

# Prepare the environment

echo " --> Preparing environment"

LIBTOOL=libtool

export LIBTOOL

ORIG_MAKE=${MAKE}

unset MAKE

ORIG_MAKEFLAGS=${MAKEFLAGS}

unset MAKEFLAGS

ORIG_MAKEOVERRIDES=${MAKEOVERRIDES}

unset MAKEOVERRIDES

ORIG_MAKELEVEL=${MAKELEVEL}

unset MAKELEVEL

ORIG_CFLAGS=${CFLAGS}

export CFLAGS="${ORIG_CFLAGS} ${INCLUDE}"

ORIG_CCFLAGS=${CCFLAGS}

export CCFLAGS="${ORIG_CCFLAGS} ${INCLUDE}"

ORIG_LDFLAGS=${LDFLAGS}

export LDFLAGS="${LDFLAGS} ${LIBPATH}"

ORIG_PATH=${PATH}

if [ ${XGCC_IN_PATH} ]; then

    export PATH="${XGCC_DIR}/bin:${PATH}"

else

    export PATH="${XGCC_BASE_DIR}/bin:${PATH}"

fi

if [ ${CLEAN} ]; then

    if [ ${DOWNLOAD_PKG} ]; then

        echo " --> Cleaning generated files"

        cd ${BASE_DIR}

        rm -fr ${WORK_DIR}

    fi        

    echo " --> Deleting binary, object, and library directories"

    rm -fr ${BIN_DIR}

    rm -fr ${LIB_DIR}

    rm -fr ${OBJ_DIR}

    exit 0

fi

if [ ${DOWNLOAD_PKG} ]; then

    echo " --> Deleting existing build objects directory"

    rm -fr ${WORK_DIR}

fi    

echo " --> Creating package directories"

mkdir -p ${PKG_BIN_DIR}

mkdir -p ${PKG_INC_DIR}

mkdir -p ${PKG_LIB_DIR}

mkdir -p ${PKG_PKG_DIR}

mkdir -p ${AFC_DIR}

mkdir -p ${AFC_BIN_DIR}

mkdir -p ${AFC_LIB_DIR}

mkdir -p ${AFC_SHARE_DIR}

mkdir -p ${PKG_TOOL_DIR}

mkdir -p ${PKG_TOOL_BIN_DIR}

mkdir -p ${PKG_TOOL_SCRIPT_DIR}

if [ ${DOWNLOAD_PKG} ]; then

    echo " --> Extracting ${DOWNLOAD_PKG}"

    cd ${LCL_SRC_DIR}

    tar -x${TAR_DECOMP_ARG}pf ${TARBALL_FILE}

    cd ${WORK_DIR}

    PATCHES_DIR=${SHARE_BASE_DIR}/patches

    if [ -d ${PATCHES_DIR} ]; then

        PATCHES=`cd ${PATCHES_DIR} && ls `

        if [ "${PATCHES}" != "" ]; then

            echo " --> Apply external patches"

            for PATCH in ${PATCHES}; do

                if patch -p1 < ${PATCHES_DIR}/$PATCH; then

                    echo "Applied patch ${PATCH}"

                    echo ""

                else

                    echo "Patch ${PATCH} failed"

                    exit 1

                fi

            done    

        fi

    fi

    cd ${WORK_DIR}

    MODS_DIR=${SHARE_BASE_DIR}/${DOWNLOAD_PKG_NAME}_${DOWNLOAD_PKG_VER}_mods

    if [ -d ${MODS_DIR} ]; then

        echo " --> Applying modifications"

        cp -fr ${MODS_DIR}/* .

        ERG_CONFIG=${MODS_DIR}/ERG.config

        if [ -f ${ERG_CONFIG} ]; then

            cp -fr ${ERG_CONFIG} .config

        fi

    fi

    cd ${WORK_DIR}

fi    

source ${LAUNCH_SCRIPT}

if [ ${DEBIAN_PACKAGE} ]; then 

    echo " --> Creating Debian packaging scripts"

    unset TOOL_DIR

    for DIR in `echo ${PATH} | sed "s|\:| |g"`; do

        if [ -f ${DIR}/debbuild.pl ]; then

            TOOL_DIR=`cleanup_dir ${DIR}`

        fi

    done

    if [ ${TOOL_DIR} ]; then

        DEBBUILD_PL=${TOOL_DIR}/debbuild.pl

        echo "      - Found ${DEBBUILD_PL}"

        DEB_DIR=${LCL_SRC_DIR}/.deb

        rm -fr ${DEB_DIR}

        mkdir -p ${DEB_DIR}

        DEB_DESC="${BUILD_NAME} ${BUILD_VERSION} for ${PLATFORM}"

        cat ${DEBBUILD_PL} | sed "s|Unknown Debian Package Description|${DEB_DESC}|" > ${DEB_DIR}/debbuild.pl

        cp ${TOOL_DIR}/postinstall ${DEB_DIR}/postinstall

    else

        echo "ERROR: Cannot find debbuild.pl in the PATH"

        exit 1

    fi

fi    

echo " --> Removing unnecesary files resulting from the make install"

DEL_FILES=`find ${PKG_LIB_DIR} -type f -name '*.la'`

for FILE in ${DEL_FILES}; do

        echo "      - Deleting ${FILE}"

        rm -f ${FILE}

done

echo " --> Cleaning up empty directories"

# Deletes directory $1 if it does not contain any other files or directories

function rmdir_empty()

{

    # -A = do not list . and ..

    # -Q = enclose entry names in double quotes

    # -l = list one file per line

    # -F = appends each directory with a '/' 

    DIRS=`ls -A -Q -l -F "$1" | grep "\".*\"\/" | sed "s|.* \"||" | sed "s|\"\/||"`

    for DIR in ${DIRS}; do

        rmdir_empty $1/${DIR}

    done

    LS=`ls -A -Q -l -F "$1" | grep "\"" | sed "s|^.* \"||" | sed "s|\".*||"`

    if [ "${LS}" == "" ]; then

        rmdir $1

    fi

}

rmdir_empty ${DEB_PKG_DIR}

rmdir_empty ${BASE_DIR}/pkg

echo " --> Cleaning up installation environment"

export MAKE=${ORIG_MAKE}

export MAKEFLAGS=${ORIG_MAKEFLAGS}

export MAKEOVERRIDES=${ORIG_MAKEOVERRIDES}

export MAKELEVEL=${ORIG_MAKELEVEL}

export CCFLAGS=${ORIG_CCFLAGS}

export CFLAGS=${ORIG_CFLAGS}

export LDFLAGS=${ORIG_LDFLAGS}

export PATH=${ORIG_PATH}