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+* Install the [Android NDK](http://developer.android.com/tools/sdk/ndk/)
+* `export ANDROID_NDK_HOME=/wherever/you/downloaded/the/ndk`
+* `git clone https://git.torproject.org/orbot.git`
+* `cd orbot`
+* `git submodule update --init external/libevent`
+* `git submodule update --init external/openssl`
+* `git submodule update --init external/tor`
+* `cd external/libevent`
+* `git checkout release-2.0.22-stable` (or latest stable release)
+* `cd ../openssl`
+* `git checkout OpenSSL_1_0_2g` (or latest stable release)
+* `cd ../tor`
+* `git checkout tor-0.2.7.6` (or latest stable release)
+* `cd ../..`
+
+ARM binary with PIE (Android API version 16+):
+* `unset APP_ABI`
+* `unset NDK_PLATFORM_LEVEL`
+* `unset PIEFLAGS`
+* `make -C external tor`
+* `mv external/bin/tor .`
+* `strip tor` (requires binutils-multiarch)
+* `zip tor-arm-pie.zip tor`
+* `make -C external clean`
+
+ARM binary without PIE (Android API version 9-15):
+* `unset APP_ABI`
+* `export NDK_PLATFORM_LEVEL=9`
+* `export PIEFLAGS=`
+* `make -C external tor`
+* `mv external/bin/tor .`
+* `strip tor` (requires binutils-multiarch)
+* `zip tor-arm.zip tor`
+* `make -C external clean`
+
+x86 binary with PIE (Android API version 16+):
+* `export APP_ABI=x86`
+* `unset NDK_PLATFORM_LEVEL`
+* `unset PIEFLAGS`
+* `make -C external tor`
+* `mv external/bin/tor .`
+* `strip tor` (requires binutils-multiarch)
+* `zip tor-x86-pie.zip tor`
+* `make -C external clean`
+
+x86 binary without PIE (Android API version 9-15):
+* `export APP_ABI=x86`
+* `export NDK_PLATFORM_LEVEL=9`
+* `export PIEFLAGS=`
+* `make -C external tor`
+* `mv external/bin/tor .`
+* `strip tor` (requires binutils-multiarch)
+* `zip tor-x86.zip tor`
+* `make -C external clean`