Code:
cd /tmp
rm -rf /tmp/libdvbcsa
git clone https://github.com/oe-mirrors/libdvbcsa.git /tmp/libdvbcsa
cd /tmp/libdvbcsa
./bootstrap
#
use /cat/proc/cpuinfo to get the info to choose the correct optimization of libdvbcsa for the ./configure step
# --enable-uint32 Use native 32 bits integers for bitslice
# --enable-uint64 Use native 64 bits integers for bitslice
# --enable-mmx Use MMX 64 bits for bitslice
# --enable-sse2 Use SSE2 128 bits for bitslice
# --enable-ssse3 Use SSSE3 128 bits for bitslice
#...