#! /bin/sh

##################################################################

Parallel_Make () {
    local numprocs=1
    case $OS in
    'linux')
        numprocs=`grep -c ^processor /proc/cpuinfo 2>/dev/null`
        ;;
    'mac')
        if type sysctl &> /dev/null; then
            numprocs=`sysctl -n hw.ncpu`
        fi
        ;;
    #"solaris')
    #    on Solaris you need to use psrinfo -p instead
    #    ;;
    #'freebsd')
    #    ;;
    *) ;;
    esac
    if [ "$numprocs" = "" ] || [ "$numprocs" = "0" ]; then
        numprocs=1
    fi  
    make -s -j$numprocs
}

##################################################################
# Init

Home=`pwd`
ZenLib_Options=""
MacOptions="--with-macosx-version-min=10.5"

OS=$(uname -s)
# expr isn’t available on mac
if [ "$OS" = "Darwin" ]; then
    OS="mac"
# if the 5 first caracters of $OS equal "Linux"
elif [ "$(expr substr $OS 1 5)" = "Linux" ]; then
    OS="linux"
#elif [ "$(expr substr $OS 1 5)" = "SunOS" ]; then
#    OS="solaris"
#elif [ "$(expr substr $OS 1 7)" = "FreeBSD" ]; then
#    OS="freebsd"
fi

##################################################################
# ZenLib

if test -e ZenLib/Project/GNU/Library/configure; then
    cd ZenLib/Project/GNU/Library/
    test -e Makefile && rm Makefile
    chmod +x configure
    if [ "$OS" = "mac" ]; then
        ./configure $MacOptions $ZenLib_Options $*
    else
        ./configure $ZenLib_Options $*
    fi
    if test -e Makefile; then
        make clean
        Parallel_Make
        if test -e libzen.la; then
            echo ZenLib compiled
        else
            echo Problem while compiling ZenLib
            exit
        fi
    else
        echo Problem while configuring ZenLib
        exit
    fi
else
    echo ZenLib directory is not found
    exit
fi
cd $Home

##################################################################
# MediaInfoLib

if test -e MediaInfoLib/Project/GNU/Library/configure; then
    cd MediaInfoLib/Project/GNU/Library/
    test -e Makefile && rm Makefile
    chmod +x configure
    if [ "$OS" = "mac" ]; then
        ./configure $MacOptions --enable-shared --disable-static $*
    else
        ./configure --enable-shared --disable-static $*
    fi
    if test -e Makefile; then
        make clean
        Parallel_Make
        if test -e libmediainfo.la; then
            echo MediaInfoLib compiled
        else
            echo Problem while compiling MediaInfoLib
            exit
        fi
    else
        echo Problem while configuring MediaInfoLib
        exit
    fi
else
    echo MediaInfoLib directory is not found
    exit
fi
cd $Home

##################################################################

echo "MediaInfo shared object is in MediaInfoLib/Project/GNU/Library/.libs"
echo "For installing ZenLib, cd ZenLib/Project/GNU/Library && make install"
echo "For installing MediaInfoLib, cd MediaInfoLib/Project/GNU/Library && make install"

unset -v Home ZenLib_Options MacOptions OS