c++ - スタンフォード C++ ライブラリのコンパイル

Question

http://www.stanford.edu/class/cs106b/assignments/Assignment1-linux.zip

今後の Coursera コースに向けて、この課題を自習しています。0-Warmup フォルダーの Warmup.cpp を次のように変更しました。

#include <iostream>
#include <string>
#include "StanfordCPPLib/console.h"
using namespace std;

/* Constants */

const int HASH_SEED = 5381;               /* Starting point for first cycle */
const int HASH_MULTIPLIER = 33;           /* Multiplier for each cycle      */
const int HASH_MASK = unsigned(-1) >> 1;  /* All 1 bits except the sign     */

/* Function prototypes */

int hashCode(string key);

/* Main program to test the hash function */

int main() {
   string name;
   cout << "Please enter your name: "; 
   getline(cin, name); 
   int code = hashCode(name);
   cout << "The hash code for your name is " << code << "." << endl;
   return 0;
}
int hashCode(string str) {
   unsigned hash = HASH_SEED;
   int nchars = str.length();
   for (int i = 0; i < nchars; i++) {
      hash = HASH_MULTIPLIER * hash + str[i];
   }
   return (hash & HASH_MASK);
}

それは私にこのエラーを与えます:

andre@ubuntu-Andre:~/Working/Assignment1-linux/0-Warmup$ g++ Warmup.cpp -o a
/tmp/ccawOOKW.o: In function `main':
Warmup.cpp:(.text+0xb): undefined reference to `_mainFlags'
Warmup.cpp:(.text+0x21): undefined reference to `startupMain(int, char**)'
collect2: ld returned 1 exit status

ここで何が問題なのですか？

---

更新: これで動作するようになりました。

1. cd to the folder containing assignment.cpp
2. g++ assignment.cpp StanfordCPPLib/*.cpp -o a -lpthread

StanfordCPPLib/*.cpp this part indicate that everything in the library will be compiled,
-pthread will link pthread.h, which is used by several utilities in the Stanford library.