OS: Ubuntu 14.04 LTS (x86_64)
参考：https://forums.freebsd.org/threads/security-openssl-build-failure.41478/
installing man1/smime.
smime.pod around line : Expected text after =item, not a number
smime.pod around line : Expected text after =item, not a number
smime.pod around line : Expected text after =item, not a number
smime.pod around line : Expected text after =item, not a number
smime.pod around line : Expected text after =item, not a number
POD document had syntax errors at /usr/bin/pod2man line .
make: *** [install_docs] 错误
这是由于OpenSSL 1.0.1e 与 perl5.18 不兼容
解决方法：
- 1有人验证 安装perl 5.16 可以兼容，安排低版本perl 5.16可以解决问题
- sudo rm /usr/bin/pod2man
2 删除 pod2man文件