mac下brew安装php扩展swoole失败

mac下面用brew安装了php扩展swoole后，虽然brew这边显示成功安装，但是网页显示异常，apache日志中显示如下

PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/opt/php70-swoole/swoole.so' - dlopen(/usr/local/opt/php70-swoole/swoole.so, 9): Symbol not found: _basic_globals\n  Referenced from: /usr/local/opt/php70-swoole/swoole.so\n  Expected in: flat namespace\n in /usr/local/opt/php70-swoole/swoole.so in Unknown on line 0

查询后得知可能是原包的问题，加-build-from-source 参数（从源码安装）再次安装正常。

brew reinstall php70-swoole --build-from-source