This version of libunwind based on libunwind 1.1.

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To configure a libunwind install for arm:

source build/envsetup.sh
lunch aosp_arm-eng
make -jXX
cd external/libuwnind
android/conf_arm.sh

To configure a libunwind install for mips:

source build/envsetup.sh
lunch aosp_mips-eng
make -jXX
cd external/libuwnind
android/conf_mips.sh

To configure a libunwind install for x86:

source build/envsetup.sh
lunch aosp_x86-eng
make -jXX
cd external/libuwnind
android/conf_x86.sh