diff --git a/external/Makefile b/external/Makefile
new file mode 100644
index 00000000..1f6e7aad
--- /dev/null
+++ b/external/Makefile
@@ -0,0 +1,192 @@
+# Please install the following prerequisites (instructions for each follows):
+# 	Android OS SDK: http://source.android.com/download
+#
+# Install and prepare the Android OS SDK ( http://source.android.com/download )
+# on Debian or Ubuntu
+
+### these modify the calling shell
+# point pkg-config to the .pc files generated from these builds
+export PKG_CONFIG_PATH=$(LOCAL)/lib/pkgconfig
+# workaround for cross-compiling bug in autoconf
+export ac_cv_func_malloc_0_nonnull=yes
+export ac_cv_func_setpgrp_void=yes
+
+CWD = $(shell pwd)
+PROJECT_ROOT = $(CWD)/..
+EXTERNAL_ROOT = $(PROJECT_ROOT)/external
+
+# Android NDK setup:
+NDK_BASE ?= /usr/local/android-ndk
+NDK_PLATFORM_LEVEL ?= 8
+NDK_SYSROOT=$(NDK_BASE)/platforms/android-$(NDK_PLATFORM_LEVEL)/arch-arm
+NDK_UNAME=`uname -s | tr '[A-Z]' '[a-z]'`
+NDK_TOOLCHAIN=$(NDK_BASE)/toolchains/arm-linux-androideabi-4.4.3/prebuilt/$(NDK_UNAME)-x86
+
+# to use the real HOST tag, you need the latest libtool files:
+# http://stackoverflow.com/questions/4594736/configure-does-not-recognize-androideabi
+#HOST := arm-none-linux-gnueabi
+HOST := arm-linux-androideabi
+
+# install root for built files
+DESTDIR = $(EXTERNAL_ROOT)
+# TODO try adding the Android-style /data/app.name here
+prefix = /data/data/org.torproject.android
+LOCAL := $(DESTDIR)$(prefix)
+
+export PATH := ${PATH}:$(NDK_TOOLCHAIN)/bin:$(LOCAL)/bin
+
+CC := $(NDK_TOOLCHAIN)/bin/arm-linux-androideabi-gcc --sysroot=$(NDK_SYSROOT)
+CXX := $(NDK_TOOLCHAIN)/bin/arm-linux-androideabi-g++
+CPP := $(NDK_TOOLCHAIN)/bin/arm-linux-androideabi-cpp
+LD := $(NDK_TOOLCHAIN)/bin/arm-linux-androideabi-ld
+AR := $(NDK_TOOLCHAIN)/bin/arm-linux-androideabi-ar
+RANLIB := $(NDK_TOOLCHAIN)/bin/arm-linux-androideabi-ranlib
+STRIP := $(NDK_TOOLCHAIN)/bin/arm-linux-androideabi-strip \
+	--strip-unneeded -R .note -R .comment
+
+CFLAGS = -DANDROID -I$(LOCAL)/include
+LDFLAGS = -L$(LOCAL)/lib
+
+# build as small as possible, mostly useful for static binaries
+CFLAGS += -fdata-sections -ffunction-sections -Os
+LDFLAGS += -Wl,--gc-sections
+
+all: openssl-static libevent tor privoxy
+
+#------------------------------------------------------------------------------#
+# openssl-static
+
+openssl-static/obj/local/armeabi/libcrypto.a:
+	cd openssl-static && \
+		ndk-build
+
+openssl-static/obj/local/armeabi/libssl.a:
+	cd openssl-static && \
+		ndk-build
+
+openssl-static-build-stamp: openssl-static/obj/local/armeabi/libcrypto.a openssl-static/obj/local/armeabi/libssl.a
+	touch openssl-static-build-stamp
+
+openssl-static: openssl-static-build-stamp
+	test -d lib || mkdir lib
+	test -d include || mkdir include
+	cp openssl-static/obj/local/armeabi/libcrypto.a lib
+	cp openssl-static/obj/local/armeabi/libssl.a lib
+	cp -R openssl-static/include/openssl include 
+
+openssl-static-clean:
+	-cd openssl-static && \
+		ndk-build clean
+	-rm openssl-static/openssl-static-build-stamp
+	-rm lib/libcrypto.a
+	-rm lib/libssl.a
+
+#------------------------------------------------------------------------------#
+# libevent
+
+libevent/configure: 
+	cd libevent && ./autogen.sh
+
+libevent/Makefile: libevent/configure
+	cd libevent && \
+ 		CC="$(CC)" AR="$(AR)" RANLIB=$(RANLIB) CFLAGS="$(CFLAGS)" LDFLAGS="$(LDFLAGS)" \
+			./configure \
+				--host=$(HOST) \
+				--prefix=$(NDK_TOOLCHAIN)
+
+libevent-build-stamp: libevent/Makefile
+	$(MAKE) -C libevent
+	touch libevent-build-stamp
+
+libevent: libevent-build-stamp
+	test -d lib || mkdir lib
+	test -d include || mkdir include
+	cp libevent/.libs/libevent.a lib
+	cp libevent/*.h include
+
+libevent-clean:
+	-rm -f include/*.h
+	-rm -f lib/libevent.a
+	-rm -f libevent-build-stamp
+	-rm -f libevent/config.status
+	-rm -f libevent/config.log
+	-rm -f libevent/Makefile
+
+#------------------------------------------------------------------------------#
+# tor
+
+tor/configure: 
+	cd tor && \
+	 ./autogen.sh
+
+tor/Makefile: tor/configure
+	cd tor && \
+                CC="$(CC)" AR="$(AR)" RANLIB=$(RANLIB) CFLAGS="$(CFLAGS)" LDFLAGS="$(LDFLAGS)" \
+                        ./configure \
+                                --host=$(HOST) \
+                                --prefix=$(NDK_TOOLCHAIN) \
+				--disable-asciidoc \
+				--with-libevent-dir=$(EXTERNAL_ROOT) --enable-static-libevent \
+				--with-openssl-dir=$(EXTERNAL_ROOT) --enable-static-openssl
+
+tor-build-stamp: tor/Makefile
+	$(MAKE) -C tor 
+	touch tor-build-stamp
+
+tor: tor-build-stamp libevent openssl-static
+	test -d bin || mkdir bin
+	cp tor/src/or/tor bin
+
+tor-clean:
+	-rm -f bin/tor
+	-rm -f tor-build-stamp
+	-rm -f tor/config.status
+	-rm -f tor/config.log
+	-rm -f tor/Makefile
+
+#------------------------------------------------------------------------------#
+# privoxy
+
+privoxy/configure: 
+	cd privoxy && \
+	 ./autoheader
+	 ./autoconf
+
+privoxy/Makefile: privoxy/configure
+	cd privoxy && \
+                CC="$(CC)" AR="$(AR)" RANLIB=$(RANLIB) CFLAGS="$(CFLAGS)" LDFLAGS="$(LDFLAGS)" \
+                        ./configure \
+                                --host=arm-linux-eabi --disable-pthread 
+
+privoxy-build-stamp: privoxy/Makefile
+	$(MAKE) -C privoxy
+	touch privoxy-build-stamp
+
+privoxy: privoxy-build-stamp
+	test -d bin || mkdir bin
+	cp privoxy/privoxy bin
+
+privoxy-clean:
+	-rm -f bin/privoxy
+	-rm -f privoxy-build-stamp
+	-rm -f privoxy/config.status
+	-rm -f privoxy/config.log
+	-rm -f privoxy/Makefile
+
+
+#------------------------------------------------------------------------------#
+# JTorControl library
+
+jtorctrl:
+	test -d jtorctl/bin || mkdir jtorctl/bin
+	cd jtorctl && \
+		javac net/freehaven/tor/control/TorControlConnection.java -d bin
+	jar cvf bin/jtorctrl.jar jtorctl/bin/*
+
+jtorctrl-clean:
+	-rm bin/jtorctrl.jar
+
+#------------------------------------------------------------------------------#
+# cleanup, cleanup, put the toys away
+
+clean: openssl-static-clean libevent-clean tor-clean privoxy-clean