libevent 小例子一直編譯不通過(guò)

mac 上通過(guò)brew 安裝libevent,編譯如下代碼，但就是一直不通過(guò)。

#include <stdio.h>
#include<event.h>
#include<unistd.h>
#include<event2/util.h>
int main(int argc, char const *argv[])
{
    struct event_base* base = event_base_new();
    return 0;
}

報(bào)錯(cuò)信息如下：

Undefined symbols for architecture x86_64:
  "_event_base_new", referenced from:
  _main in main-d0e518.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v                                 
to see invocation)

謝謝了！