Neither flex nor lex was found

编译./configurelibpcap时报错Neither flex nor lex was found

安装flex，bison就能解决

apt-get install flex
apt-get install bison

报错：libpcap.so.1: cannot open shared object file: No such file or directory

执行，添加一个链接

sudo ln -s /usr/local/lib/libpcap.so.1 /usr/lib/libpcap.so.1