Hi!! I have been successful in compiling my app with android ndk-r2 and boost libraries. However, I have some problems in compiling my app with it with the new version of android ndk. I have done the same steps but with no results until now. I do the following steps: *1º* Building my toolchain using your instruction; *2º* Compile boost using the prebuild binary for step 1: sudo bjam install --prefix=/usr/local/boost_1_42_0 toolset=gcc-arm *3º* try to compile my program. bjam toolset=gcc-arm link=static runtime-link=static include="/home/carlos/Projectos/android-ndk-r3/build/platforms/android-3/arch-arm/usr/include" include="/usr/local/boost_1_42_0/include" library="/usr/local/boost_1_42_0/lib/libboost_system.a" library="/usr/local/boost_1_42_0/lib/libboost_thread.a" library="/usr/local/boost_1_42_0/lib/libboost_program_options.a" library="/home/carlos/Projectos/android-ndk-r3/build/platforms/android-3/arch-arm/usr/lib/libc.a" The following lines is an example of error I have: */usr/local/boost_1_42_0/include/boost/config/requires_threads.hpp:29:4: error: #error "Threading support unavaliable: it has been explicitly disabled with BOOST_DISABLE_THREADS" /usr/local/boost_1_42_0/include/boost/thread/detail/platform.hpp:67:9: error: #error "Sorry, no boost threads are available for this platform." /usr/local/boost_1_42_0/include/boost/thread/mutex.hpp:18:2: error: #error "Boost threads unavailable on this platform" /usr/local/boost_1_42_0/include/boost/asio/detail/socket_types.hpp:165: error: 'INET_ADDRSTRLEN' was not declared in this scope* I really appreciate if you could give me some help or any advice that could lead me in the right way.