root@router3:/usr/src/nDPI/ndpi-netfilter# make install
make -C ipt install
make[1]: Entering directory '/usr/src/nDPI/ndpi-netfilter/ipt'
make[1]: pkg-config: Command not found
if [ -d ]; then install libxt_ndpi.so ; ln -fs libxt_ndpi.so /libxt_NDPI.so ; else echo "No pkg-config --variable=xtlibdir xtables"; fi
install: missing destination file operand after ‘libxt_ndpi.so’
Try 'install --help' for more information.
make[1]: Leaving directory '/usr/src/nDPI/ndpi-netfilter/ipt'
cast 
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