compile

$ arm-linux-androideabi-g++ test.cpp -ltorrent-rasterbar -L/usr/local/gcc-4.8.0-arm-linux-androideabi/lib -I/usr/local/gcc-4.8.0-arm-linux-androideabi/include -DTORRENT_USE_OPENSSL -DWITH_SHIPPED_GEOIP_H -DBOOST_ASIO_HASH_MAP_BUCKETS=1021 -DBOOST_EXCEPTION_DISABLE -DBOOST_ASIO_ENABLE_CANCELIO -DBOOST_ASIO_DYN_LINK -DTORRENT_LINKING_SHARED

test.cpp

#include <iostream>
#include <libtorrent/magnet_uri.hpp>

int main(int argc, char **argv) {
    libtorrent::error_code          ec;
    libtorrent::add_torrent_params  params;
    libtorrent::parse_magnet_uri(argv[1], params, ec);
}