编译过程出现：
checking openssl/ssl.h usability... no
checking openssl/ssl.h presence... no
checking for openssl/ssl.h... no
configure: error:
 !!! OpenSSL is not properly installed on your system. !!!
 !!! Can not include OpenSSL headers files.            !!!
解决方式：安装openssl-devel
2.
In file included from /usr/include/stdlib.h:438,
                from ../../lib/memory.h:30,
                from vrrp_arp.c:28:
/usr/include/sys/types.h:62: 错误：与 ‘dev_t’ 类型冲突
/usr/include/linux/types.h:13: 错误：‘dev_t’ 的上一个声明在此
/usr/include/sys/types.h:67: 错误：与 ‘gid_t’ 类型冲突
/usr/include/linux/types.h:27: 错误：‘gid_t’ 的上一个声明在此
/usr/include/sys/types.h:72: 错误：与 ‘mode_t’ 类型冲突
/usr/include/linux/types.h:15: 错误：‘mode_t’ 的上一个声明在此
/usr/include/sys/types.h:77: 错误：与 ‘nlink_t’ 类型冲突
/usr/include/linux/types.h:16: 错误：‘nlink_t’ 的上一个声明在此
/usr/include/sys/types.h:82: 错误：与 ‘uid_t’ 类型冲突
/usr/include/linux/types.h:26: 错误：‘uid_t’ 的上一个声明在此
In file included from /usr/include/sys/types.h:133,
                from /usr/include/stdlib.h:438,
                from ../../lib/memory.h:30,
                from vrrp_arp.c:28:
/usr/include/time.h:105: 错误：与 ‘timer_t’ 类型冲突
/usr/include/linux/types.h:22: 错误：‘timer_t’ 的上一个声明在此
In file included from /usr/include/sys/types.h:220,
                from /usr/include/stdlib.h:438,
                from ../../lib/memory.h:30,
                from vrrp_arp.c:28:
/usr/include/sys/select.h:78: 错误：与 ‘fd_set’ 类型冲突
/usr/include/linux/types.h:12: 错误：‘fd_set’ 的上一个声明在此
In file included from /usr/include/stdlib.h:438,
                from ../../lib/memory.h:30,
                from vrrp_arp.c:28:
/usr/include/sys/types.h:235: 错误：与 ‘blkcnt_t’ 类型冲突
/usr/include/linux/types.h:114: 错误：‘blkcnt_t’ 的上一个声明在此
解决方式：安装iptraf