类似错误很多
configure: error: You requested SSL (requires OpenSSL) but not found...die
解决办法1
查看config.log
./autogen.sh autoreconf -fiv ./configure ...(参数）
解决办法2
查看config.log
使用的srtp太新，导致目录错误。找到头文件所在位置：
cp -rf srtp2 srtp or ln -snf srtp2 srtp
这是在编译doubango时产生的。具体可参考：
![ERROR: Could not install packages due to an OSError: [WinError 5] Access is denied](https://ucc.alicdn.com/pic/developer-ecology/mmshywghrg77c_b2b9a22b984944e3b0ff87de8590fe42.png?x-oss-process=image/resize,h_160,m_lfit)
![成功解决ERROR: Could not install packages due to an EnvironmentError: [WinError 5] 拒绝访问。backend_agg.cp36](https://ucc.alicdn.com/images/user-upload-01/20201024003227775.png?x-oss-process=image/resize,h_160,m_lfit)