How to link to shared lib in c++ - c++

Question

Could someone help me with linking to a shared lib, specifically libzmq, in C++?
all: clean compile
clean:
rm bin *.o -f
compile:
g++ -g -Wall -I/usr/local/include -L/usr/local/lib main.cpp -lzmq -o bin
I've installed libzmq using the following steps:
git clone https://github.com/zeromq/libzmq.git
cd libzmq
./autogen.sh
./configure
make && sudo make install
Here's my main.cpp
#include <iostream>
#include <string>
#include <zmq/zmq.h>
// Required by fork routine
#include <sys/types.h>
#include <unistd.h>
// Required by wait routine
#include <sys/wait.h>
#include <stdlib.h> // Declaration for exit()
#include <cstdio> // printf
using namespace std;
int global_variable = 2;
int main(int argc, char** argv){
const short int FORK_FAILED = -1;
const short int FORK_SUCCESS = 0;
int stack_variable = 20;
pid_t pid;
string status_identifier;
switch (pid = fork()){
case FORK_SUCCESS:
printf("Child changing global and stack variables\n");
global_variable++;
stack_variable++;
break;
case FORK_FAILED:
cerr << "Failed! -- Failed to fork: " << pid << endl;
exit(1);
default:
printf("Child process (pid=%d) created successfully.\n", pid);
wait(0);
break;
}
printf("[pid=%d] Global: %d\n", pid, global_variable);
printf("[pid=%d] Stack: %d\n", pid, stack_variable);
return 0;
}
And, here's the error msg:
bitcycle # ubuntu64vm ~/git/test $ make
rm bin *.o -f
g++ -g -Wall -I/usr/local/include -L/usr/local/lib main.cpp -lzmq -o bin
main.cpp:4:23: fatal error: zmq/zmq.hpp: No such file or directory
compilation terminated.
make: *** [compile] Error 1
The error is pretty straight forward, but I've yet to find a solution. Any ideas?
My goal is to do something like this with multiple child processes.
Update I'm just going to install it system-wide in ubuntu: sudo apt-get install libzmq-dev, and that resolved the issue. It doesn't teach me anything about how to identify a shared lib and header file on disk and link to it... but I guess I can move that to another day.

Answer 1

C++ wrapper for ZeroMQ (zmq.hpp) is no longer part of ZeroMQ. There is no zmq.hpp in current libzmq master or in latest stable 3.2.x.