libnet的移植遇到的不少问题，查询了许多文档都无法成功，倒腾了一整天最终移植成功了，小小的开心一下，嘿嘿。

步骤：

1.解压libnet。

2.进入文件夹，先执行./configure –host=arm-linux

    再打开configure，将prefix修改为编译器arm-linux-gcc的安装地址

3.再make，出现如下错误：

../include/libnet.h:117:10: macro names must be identifiers（说明../include/libnet.h第117行有问题）

于是打开libnet.h，将117行#define 1注释掉

    4.再make，出现如下错误：

 libnet_build_ip.c: In function `libnet_build_ipv4′:
libnet_build_ip.c:80: error: structure has no member named `ip_v’
libnet_build_ip.c:81: error: structure has no member named `ip_hl’
libnet_build_ip.c:96: error: structure has no member named `ip_hl’
libnet_build_ip.c: In function `libnet_autobuild_ipv4′:
libnet_build_ip.c:282: error: structure has no member named `ip_v’
libnet_build_ip.c:283: error: structure has no member named `ip_hl’
libnet_build_ip.c:298: error: structure has no member named `ip_hl’
libnet_build_ip.c: In function `libnet_build_ipv4_options’:
libnet_build_ip.c:435: error: structure has no member named `ip_hl’
make[1]: *** [libnet_build_ip.o] Error 1
make[1]: Leaving directory `/root/libnet/src’
make: *** [all-recursive] Error 1

于是打开include/libnet/libnet-headers.h，添加一行：#define LIBNET_LIL_ENDIAN 1

 5.再make，通过了，嘿嘿。