安装环境依赖工具

根据以下步骤，安装开发环境所依赖的工具。

• 如果安装的是ubuntu10.04，安装以下工具：

    $ sudo apt-get install git-core gnupg flex bison gperf build-essential zip curl zlib1g-dev libc6-dev lib32ncurses5-dev ia32-libs x11proto-core-dev libx11-dev lib32readline5-dev lib32z-dev libgl1-mesa-dev g++-multilib mingw32 tofrodos python-markdown libxml2-utils xsltproc minicom tftpd uboot-mkimage expect

• 如果安装的是ubuntu12.04，安装以下工具：

    $ sudo apt-get install git-core gnupg flex bison gperf build-essential zip curl libc6-dev libncurses5-dev:i386 x11proto-core-dev linux-libc-dev:i386 libx11-dev:i386 libreadline6-dev:i386 libgl1-mesa-glx:i386 libgl1-mesa-dev g++-multilib mingw32 openjdk-6-jdk tofrodos python-markdown libxml2-utils xsltproc zlib1g-dev:i386 minicom tftpd uboot-mkimage expect libgl1-mesa-dri vim dos2unix gawk uuid-dev libacl1-dev liblzo2-dev zlibc zlib1g-dev libncurses5  libncurses5-dev

    $ sudo ln -s /usr/lib/i386-linux-gnu/mesa/libGL.so.1 /usr/lib/i386-linux-gnu/libGL.so