下载最新版openssl

https://www.openssl.org/source/

安装

• ./Configure darwin64-x86_64-cc

• make

• make test

• sudo make install

whichlydeMacBook-Air:~ wanyu$ which openssl

/usr/local/bin/openssl

lydeMacBook-Air:~ wanyu$ /usr/local/bin/openssl version

OpenSSL 1.1.0e  16 Feb 2017

其实只需要下载解压，找到 include/openssl 目录，copy到

/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include