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在Ubuntu 12.10中编译安装OpenJDK 7 过程记录，希望对大家有帮助。
环境设置：
Ubuntu 12.10 32位
1.6+ 版本的JDK
在$HOME目录下新建名为workspace的目录
安装所需的包
apt-get install mercurial gawk g++ libcups2-dev libasound2-dev libfreetype6-dev libx11-dev libxt-dev libxext-dev libxrender-dev libxtst-dev libfontconfig1-dev
安装HgForeset
hg clone https://bitbucket.org/pmezard/hgforest-crew/overview/ “$HOME/Workspace/hgforest”
编辑/etc/mercurial/hgrc，添加：
[extensions]
forest=~/workspace/hgforest/forest.py
将代码拷贝到本地：
hg fclone http://hg.openjdk.java.net/jdk7u/jdk7u “$HOME/Workspace/openjdk”
编译OpenJDK 7
cd “$HOME/Workspace/openjdk”
unset JAVA_HOME
export LANG=C
export ALT_BOOTDIR=”$HOME/.local/opt/jdk/1.6″
export ALLOW_DOWNLOADS=true
export EXTRA_LIBS=/usr/lib/x86_64-linux-gnu/libasound.so
source jdk/make/jdk_generic_profile.sh
make sanity && make && echo ‘Images at: build/linux-amd64/j2sdk-image’
在编译完成后，重启机器发现不出声音了，在网上找到了这个解决方案，在命令行中输入：
sudo add-apt-repository ppa:ubuntu-audio-dev/ppa; sudo apt-get update;sudo apt-get dist-upgrade; sudo apt-get install linux-sound-base alsa-base alsa-utils gdm ubuntu-desktop linux-image-`uname -r` libasound2; sudo apt-get -y –reinstall install linux-sound-base alsa-base alsa-utils gdm ubuntu-desktop linux-image-`uname -r` libasound2; killall pulseaudio; rm -r ~/.pulse*; sudo usermod -aG `cat /etc/group | grep -e ‘^pulse:’ -e ‘^audio:’ -e ‘^pulse-access:’ -e ‘^pulse-rt:’ -e ‘^video:’ | awk -F: ‘{print $1}’ | tr ‘\n’ ‘,’ | sed ‘s:,$::g’` `whoami`
更多Ubuntu相关信息见Ubuntu 专题页面 http://www.linuxidc.com/topicnews.aspx?tid=2
