You are attempting to build on a 32bit system Only 64bit build environments are supported beyond froyo/2.2

wayne@wayne-pc:~/Android/source$ make -j2
============================================
PLATFORM_VERSION_CODENAME=REL
PLATFORM_VERSION=2.3.3
TARGET_PRODUCT=full
TARGET_BUILD_VARIANT=eng
TARGET_SIMULATOR=false
TARGET_BUILD_TYPE=release
TARGET_BUILD_APPS=
TARGET_ARCH=arm
HOST_ARCH=x86
HOST_OS=linux
HOST_BUILD_TYPE=release
BUILD_ID=GRI40
============================================
Checking build tools versions...
build/core/main.mk:76: ************************************************************
build/core/main.mk:77: You are attempting to build on a 32-bit system.
build/core/main.mk:78: Only 64-bit build environments are supported beyond froyo/2.2.
build/core/main.mk:79: ************************************************************
build/core/main.mk:80: *** stop。 停止。

解决方法：cd到源码根目录，执行：

$ gedit build/core/main.mk

找到

ifneq (64,$(findstring 64,$(build_arch)))

将其修改为

ifneq (i686,$(findstring i686,$(build_arch)))

然后依次修改以下四个make文件：

external/clearsilver/cgi/Android.mk
external/clearsilver/java-jni/Android.mk
external/clearsilver/util/Android.mk
external/clearsilver/cs/Android.mk

将其中的

LOCAL_CFLAGS += -m64
LOCAL_LDFLAGS += -m64

修改为

LOCAL_CFLAGS += -m32
LOCAL_LDFLAGS += -m32