libpfring: add new package

PF_RING is a high speed packet capture library that turns a commodity PC into an efficient and cheap
network measurement box suitable for both packet and active traffic analysis and manipulation.
Moreover, PF_RING opens totally new markets as it enables the creation of efficient application such as
traffic balancers or packet filters in a matter of lines of codes.

github : https://github.com/ntop/pf_ring
official : https://www.ntop.org

Signed-off-by: BangLang Huang <banglang.huang@foxmail.com>
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
[rename kmod-pfring to kmod-pf-ring]

libs/libpfring/patches/0002-fix-march-native.patch

@@ -0,0 +1,21 @@
+--- a/userland/configure
++++ b/userland/configure
+@@ -3296,14 +3296,16 @@ fi
+ done
+ 
+ 
+-MACHINE=`uname -m`
++if test -z "$MACHINE"; then
++  MACHINE=`uname -m`
++fi
+ CFLAGS=""
+ SYS_LIBS=""
+ 
+ VER=`cat ../kernel/linux/pf_ring.h | grep RING_VERSION | head -1 | cut -d '"' -f 2`
+ MAJOR_VER=`cat ../kernel/linux/pf_ring.h | grep RING_VERSION | head -1 | cut -d '"' -f 2 | cut -d '.' -f 1`
+ 
+-NATIVE=`$CC -c -Q -march=native --help=target| grep "march" | xargs | cut -d ' ' -f 2`
++NATIVE=`$CC -c -Q --help=target| grep "march" | xargs | cut -d ' ' -f 2`
+ if test -f "lib/libs/libpfring_zc_x86_64_$NATIVE.a"; then
+   CFLAGS="-march=native -mtune=native $CFLAGS"
+   LIBARCH="_$NATIVE"