unpack-gcc.sh

#!/bin/bash
##
##  Script: unpack-gcc.sh
##
##  This second-level script unpacks the source tarballs, places everything
##  in the correct locations, and the performs any required patching.
##
##- Make sure we're in the same directory as this script.
##
export TOP_DIR="$(cd "$(dirname "$0")" && pwd)"
cd $TOP_DIR

##- Get the GCC-related variables for this build.
##
source ./gcc-build-vars.sh

echo "Checking for required tarballs... "
for I in $ALL_TARBALLS
do
    if [ ! -e ./tarballs/$I ]
    then
        echo "Missing required tarball $I...   exiting build..."
        exit
    fi
done

##- Unpack all tarballs.
##
echo -n "Checking for source directory $GCC_SRC_DIR..."
if [ ! -e $GCC_SRC_DIR ]
then
    echo ""
    echo "Making new source directory..."
    echo "Upacking GCC tarball $GCC_TARBALL..."
    tar xf ./tarballs/$GCC_TARBALL

    if [ "$GCC_PLATFORM" == "FreeBSD" ]
    then
        if [ -z "` pkg info | grep 'gmp-5'`" ]
        then
            sudo pkg install -y gmp
        else
            echo "GMP already installed..."
        fi

        if [ -z "` pkg info | grep 'mpfr-3'`" ]
        then
            sudo pkg install -y mpfr
        else
            echo "MPFR already installed..."
        fi

        if [ -z "` pkg info | grep 'mpc-1'`" ]
        then
            sudo pkg install -y mpc
        else
            echo "MPC already installed..."
        fi

    elif [ "$GCC_PLATFORM" = "Linux" ]
    then
        if [ "$GCC_USE_CUSTOM_BINUTILS" == "YES" ]
        then
            echo "Upacking binutils tarball $BU_TARBALL..."
            tar xf ./tarballs/$BU_TARBALL
        fi

        echo "Upacking GMP tarball $GMP_TARBALL..."
        tar xf ./tarballs/$GMP_TARBALL
        mv -v gmp-$GMP_VERSION $GCC_SRC_DIR/gmp

        echo "Upacking MPC tarball $MPC_TARBALL..."
        tar xf ./tarballs/$MPC_TARBALL
        mv -v mpc-$MPC_VERSION $GCC_SRC_DIR/mpc

        echo "Upacking MPFR tarball $MPFR_TARBALL..."
        tar xf ./tarballs/$MPFR_TARBALL
        mv -v mpfr-$MPFR_VERSION $GCC_SRC_DIR/mpfr
    fi
else
    echo " already exists"
fi

##- Apply GCC patches.
##
echo -n "Checking for GCC build directory $GCC_BLD_DIR... "
if [ ! -e $GCC_BLD_DIR ]
then
    echo ""
    echo "Making new build directory..."
    mkdir -v $GCC_BLD_DIR
else
    echo " already exists"
fi

cd $GCC_SRC_DIR

echo -n "Checking for existence of custom GCC fixes... "
if [ ! -e custom_fixes_done ]
then
    echo ""
    echo "Applying custom fixes..."

    if [ ! -e config.guess-orig ]
    then
        echo "Applying config.guess customization..."
        cp -p config.guess config.guess-orig
        cp ../custom-config-guess.sh ./config.guess
    fi

    touch custom_fixes_done
else
    echo " already applied"
fi
echo "GCC unpacking completed!"

##- Apply binutils patches on Linux.
##
if [ "$GCC_PLATFORM" == "Linux" ] && [ "$GCC_USE_CUSTOM_BINUTILS" == "YES" ]
then
    echo -n "Checking for binutils build directory $BU_BLD_DIR... "
    if [ ! -e $BU_BLD_DIR ]
    then
        echo ""
        echo "Making new build directory..."
        mkdir -v $BU_BLD_DIR
    else
        echo " already exists"
    fi

    cd $BU_SRC_DIR

    echo -n "Checking for existence of custom binutils fixes... "
    if [ ! -e custom_fixes_done ]
    then
        echo ""
        echo "Applying custom fixes..."

        if [ ! -e config.guess-orig ]
        then
            echo "Applying config.guess customization..."
            cp -p config.guess config.guess-orig
            cp ../custom-config-guess.sh ./config.guess
        fi

        touch custom_fixes_done
    else
        echo " already applied"
    fi
    echo "binutils unpacking completed!"
fi