+wget http://zlib.net/zlib-$VER_ZLIB.tar.gz
+tar xfvz zlib-$VER_ZLIB.tar.gz
+cd zlib-$VER_ZLIB
+# Note: zlib's configure doesn't understand --host, we need to pass $CC.
+CC=arm-linux-androideabi-gcc ./configure --prefix=$PREFIX
+make
+make install
+cd ..