安装swoole报错，错误信息如下：

/Users/luzhuang/Downloads/swoole-src-4.4.3/include/swoole.h:596:10: fatal error: 'openssl/ssl.h' file not found
#include <openssl/ssl.h>
         ^~~~~~~~~~~~~~~
1 error generated.
make: *** [php_swoole_cxx.lo] Error 1

报错原因

报错很明显，找不到 openssl/ssl.h ，首先要确认电脑上有没有安装 openssl

Mac安装openssl

 brew install openssl

既然它找不到，那么就需要手动的指定 openssl 的目录：

./configure --enable-coroutine --enable-openssl  --enable-http2  --enable-async-redis --enable-sockets --enable-mysqlnd --with-openssl-dir=/usr/local/Cellar/openssl/1.0.2s --with-php-config=/Applications/MAMP/bin/php/php7.2.14/bin/php-config