Linux下編譯libnetfilter_queue configure錯誤：
checking for LIBNFNETLINK... configure: error: Cannot find libnfnetlink >= 0.0.16
出現上面錯誤是因為未指明PKG-CONFIG搜索libnfnetlink的路徑,所以編譯libnetfilter_queue必須要加上
PKG_CONFIG=/modules/ips/pkg-config/bin/pkg-config LIBNFNETLINK_CFLAGS=/modules/ips/libnfnetlink/include/libnfnetlink/libnfnetlink.h
LIBNFNETLINK_LIBS=/modules/ips/libnfnetlink/lib
