Libdaemon is a dependancy for radvd.
Download libdaemon and cross compile for ARM assuming your ARM cross compiler is located at /opt/arm-2011.09/
wget http://0pointer.de/lennart/projects/libdaemon/libdaemon-0.14.tar.gz tar -xzf libdaemon-0.14.tar.gz cd libdaemon-0.14 ./configure --host=arm-none-linux-gnueabi --prefix=/opt/arm-2011.09/arm-none-linux-gnueabi ac_cv_func_setpgrp_void=yes make make install
wget http://www.litech.org/radvd/dist/radvd-1.9.2.tar.gz tar -xzf radvd-1.9.2.tar.gz cd radvd-1.9.2/ ./configure --prefix=/home/temp/radvd --host=arm-none-linux-gnueabi PKG_CONFIG_PATH=/opt/arm-2011.09/arm-none-linux-gnueabi/lib/pkgconfig make make install