BASH script to compile and install NCO on CentOS

The following script has been used on CentOS 5 to successfully build NCO. It should compile and install NCO sucessfully but it should fail at building the NCO documentation. This is not a problem. It is a modified version of a script found on http://idolinux.blogspot.ca/2011/02/nco-netcdf-operators-build-log.html:

#!/bin/bash
#This script compiles NCO assuming that
#netCDF4 and HDF5 libraries are already compiled,
#tested and installed on the current system.

######################################
# You MUST modify the following lines:
######################################
INSTALL_PATH=$HOME/local/nco-4.4.3

#set these to 0 if you have to re-run this
#script and some of these libraries
#compiled succesfully:
INSTALL_ANTLR=1
INSTALL_UDUNITS=1
INSTALL_GSL=1

NETCDF4_DIR="$HOME/anaconda"
HDF5_DIR="$HOME/anaconda"
##############################################
# Please do not modify anything past this line
# before trying the script!
##############################################

mkdir -p $INSTALL_PATH/src

# ANTLR2
# Do not change the version of ANTLR
# NCO works ONLY with versions 2.7.x and
# NOT with newer versions:
    APP=antlr-2.7.7
    ANTLR_PATH=$INSTALL_PATH/$APP
    if [ "$INSTALL_ANTLR" -eq "1" ]; then
        rm -rf $ANTLR_PATH
        cd $INSTALL_PATH/src

        rm -rf ${APP}
        wget http://www.antlr2.org/download/${APP}.tar.gz
        tar xzf ${APP}.tar.gz ; cd ${APP}

        CC=gcc CXX='' ./configure \
        --prefix=$ANTLR_PATH \
        --disable-csharp \
        --disable-java \
        --disable-python 2>&1 | tee $APP.config
        make 2>&1 | tee $APP.make
        make install 2>&1 | tee $APP.install
    fi


# UDUNITS
# Here, you can try to change the version number if
# a newer version if avaiable.
    APP=udunits-2.2.13
    UDUNITS_PATH=$INSTALL_PATH/$APP
    if [ "$INSTALL_UDUNITS" -eq "1" ]; then
        rm -rf $UDUNITS_PATH
        cd $INSTALL_PATH/src

        rm -rf ${APP}*
        wget ftp://ftp.unidata.ucar.edu/pub/udunits/${APP}.tar.gz
        tar xzf ${APP}.tar.gz ; cd ${APP}

        CC=gcc CXX='' F77=gfortran ./configure \
        --prefix=$UDUNITS_PATH 2>&1 | tee $APP.config
        make 2>&1 | tee $APP.make
        make install 2>&1 | tee $APP.install
    fi

#GSL
# Here, you can try to change the version number if
# a newer version if avaiable.
    APP=gsl-1.16
    GSL_PATH=$INSTALL_PATH/$APP
    if [ "$INSTALL_GSL" -eq "1" ]; then
        rm -rf $GSL_PATH
        cd $INSTALL_PATH/src

        rm -rf ${APP}*
        wget ftp://ftp.gnu.org/gnu/gsl/${APP}.tar.gz
        tar xzf ${APP}.tar.gz ; cd ${APP}

        ./configure \
        --prefix=$GSL_PATH \
        CFLAGS="-fexceptions" | tee $APP.config
        make 2>&1 | tee $APP.make
        make install 2>&1 | tee $APP.install
    fi

# NCO
# Here, you can try to change the version number if
# a newer version if available.
    APP=nco-4.4.3
    NCO_PATH=$INSTALL_PATH/$APP
    rm -rf $NCO_PATH
    cd $INSTALL_PATH/src

    rm -rf ${APP}*
    wget http://nco.sourceforge.net/src/${APP}.tar.gz
    tar xzf ${APP}.tar.gz ; cd ${APP}

    export LD_LIBRARY_PATH=$HDF5_DIR/lib:$LD_LIBRARY_PATH
    export PATH=$HDF5_DIR/bin:$PATH
    export LD_LIBRARY_PATH=$NETCDF4_DIR/lib:$LD_LIBRARY_PATH
    export PATH=$NETCDF4_DIR/bin:$PATH
    export LD_LIBRARY_PATH=$ANTLR_PATH/lib:$LD_LIBRARY_PATH
    export PATH=$ANTLR_PATH/bin:$PATH
    export LD_LIBRARY_PATH=$UDUNITS_PATH/lib:$LD_LIBRARY_PATH
    export PATH=$UDUNITS_PATH/bin:$PATH
    export LD_LIBRARY_PATH=$GSL_PATH/lib:$LD_LIBRARY_PATH
    export PATH=$GSL_PATH/bin:$PATH

    CC=gcc CXX='' \
    NETCDF_INC=$NETCDF4_DIR/include \
    NETCDF_LIB=$NETCDF4_DIR/lib \
    NETCDF4_ROOT=$NETCDF4_DIR \
    HDF5_LIB_DIR=$HDF5_DIR/lib \
    UDUNITS2_PATH=$UDUNITS_PATH \
    LDFLAGS="-L$ANTLR_PATH/lib -lantlr \
    -lhdf5_hl -lhdf5 -L$NETCDF4_DIR/lib -lnetcdf" \
    CFLAGS="-I$HDF5_DIR/include \
    -L$HDF5_DIR/lib \
    -I$ANTLR_PATH/include \
    -L$ANTLR_PATH/lib" \
    CPPFLAGS="-I$HDF5_DIR/include \
    -L$HDF5_DIR/lib \
    -I$ANTLR_PATH/include \
    -L$ANTLR_PATH/lib" \
    ./configure \
    --prefix=$NCO_PATH \
    --enable-optimize-custom \
    --enable-netcdf-4 2>&1 | tee $APP.config
    echo "#define ENABLE_NETCDF4 1" >> config.h
    make 2>&1 | tee $APP.make
make install 2>&1 | tee $APP.install

Once this script is completed, add $INSTALL_PATH/nco-4.4.0/bin to your path.