刚刚开始用vscode，在build的过程中出现了

Undefined symbols for architecture x86_64:
  "_gsl_rng_types_setup", referenced from:
      _main in Playground-7475b2.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

这样的错误，
我的代码是

#include <gsl/gsl_rng.h>
#include <iostream>
#include <stddef.h>


int main(){
    const gsl_rng_type **t, **t0;
    t0 = gsl_rng_types_setup (); 
    for (t = t0; *t != 0; t++) {
        std::cout<<(*t)->name; 
    }
}

按理我的library就在默认的位置(/usr/local/lib)不会出现这个问题吧。。
所以想求个解决方案，不胜感激!