编译 JellyBean 的时候遇到 xmllint: command not found

Bug Description

JellyBean builds fail because JB uses xmllint during build:

xmllint frameworks/base/data/fonts/system_fonts.xml >/dev/null # Don't print the xml file to stdout.
/bin/bash: xmllint: command not found
make: *** [out/target/product/pandaboard/system/etc/system_fonts.xml] Error 127
make: *** Waiting for unfinished jobs....

I installed xmllint (sudo apt-get > install libxml2-utils)  it's ok now.