源码编译SDK工具
android 版本不同编译方法也随之改变，具体可参考源码文档
文档路径：sdk/docs/howto_build_SDK.txt
输出路径：out/host/windows-x86/bin/
C- Building just the tools
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You can also build isolated windows tools directly on Linux without building
the full SDK.
To build, perform the following steps:
$ cd ~/my-android-git
$ . build/envsetup.sh
$ lunch sdk-eng
$ make winsdk-tools