Is this correct ??
edit /etc/apt/sources.list.d/yavdr.list
and insert missing deb-src.......
cd /usr/local/src/
sudo apt-get install vdr-dev
cd /usr/local/src/vdr-1.7.10/PLUGINS/src
download plugin source
cd /usr/local/src/vdr-1.7.10/
sudo make plugins
sudo make install