刚从谷歌服务器下载的gingerbread源代码，发现编译不过：

Checking build tools versions...
build/core/main.mk:77: ************************************************************
build/core/main.mk:78: You are attempting to build on a 32-bit system.
build/core/main.mk:79: Only 64-bit build environments are supported beyond froyo/2.2.
build/core/main.mk:80: ************************************************************
build/core/main.mk:81: *** stop。 停止。

请查看一下几个步骤

1 安装几个软件：

   sudo apt-get install lib64z1-dev libc6-dev-amd64 g++-multilib lib64stdc++6

2 使用32位也可以编译（一直都是32 bit system）

   修改build/core/main.mk

#ifneq (64,$(findstring 64,$(build_arch)))
ifneq (i686,$(findstring i686,$(build_arch)))
$(warning ************************************************************)
$(warning You are attempting to build on a 32-bit system.)
$(warning Only 64-bit build environments are supported beyond froyo/2.2.)
$(warning ************************************************************)
$(error stop)
endif
endif

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/wyl123/archive/2010/12/19/6085943.aspx

安装jdk sudo apt-get install openjdk-6-jdk