Boost Testing compilation error when installed with apt-get

Question

I just installed Boost usig sudo apt-get . After that, I wrote the following code for testing one of my the functions I had declared in "first_n_follow.h"

#include<iostream>
#include<string.h>
#include<vector>
#include<algorithm>
#include<set>
#include<map>

#include "first_n_follow.h"
#define BOOST_TEST_MODULE MyTest
#include <boost/test/unit_test.hpp>

using namespace std;

BOOST_AUTO_TEST_CASE( my_test )
{
    set<char> sample = {'b','c','d'};
    map<char, set<char>> sample_map;
    sample_map['a'] = sample;
    BOOST_TEST(print_map(sample_map)==0);
}

Sadly, when I compile the above file first_n_follow_test.cpp using the following command:

g++ -o test.o first_n_follow_test.cpp 

I get the following error:

/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x24): undefined reference to `main'
/usr/bin/ld: /tmp/ccefJDJt.o: in function `my_test_invoker()':
first_n_follow_test.cpp:(.text+0x100): undefined reference to `boost::unit_test::unit_test_log_t::set_checkpoint(boost::unit_test::basic_cstring<char const>, unsigned long, boost::unit_test::basic_cstring<char const>)'

followed by a long stack trace. Any ideas, as to what the problem might be?

Even if I replace the call to my code and write BOOST_TEST(0==0); , it shows the same error. Any help is very appreciated.

Answer 1

Linkage of boost unit test framework library is missing

g++ -o test.o first_n_follow_test.cpp -lboost_unit_test_framework

Undefined reference errors usually means missing libraries or object files during linkage stage