buildroot

config BR2_PACKAGE_BZIP2

    bool "bzip2"

    help

      Freely available, patent free, high-quality data compressor.

      It typically compresses files to within 10% to 15% of the best

      available techniques, while being around twice as fast at

      compression and six times faster at decompression.

​

      http://sources.redhat.com/bzip2/