glViewport undefined reference

Question

Summary

Compiler MinGW OS Windows 7 x64

glViewport() function gives Undefined Reference error

I have tried

1. adding -lGL resulted cannot find -lGL <-- How do I locate OpenGL dll files ?
2. checked -Lpath -lglew32 -lglfw3 as if not last linker argument

I may have miscompiled GLEW and/or miscopied GLEW libs as I am not sure if I need libglew32.a and/or libglew32.dll.a files.

I have a folder structure like that

• OpenGL
  • bins
    • glew32.dll
    • glfw3.dll
  • includes
    • GL
      • glew.h
      • glewx.h
      • wglew.h
    • GLFW
      • glfw3.h
      • glfw3native.h
  • libs
    • glfw3.lib

---

Long Story

Hello experienced programmers. Your humble questioner returns. Today me and my friend decided to start/learn OpenGL. As we follow this tutorial, we have stuck at glViewport as it gives Undefined reference error. We are working on NetBeans 8.0 C/C++ version. I have double checked the Makefile as some sites mentioned -Lpath -lglew32 -lglfw3 had to be last parameter when compiling. I have tried to ad -lGL as linker option, but sadly it won't work.

---

Code

#include <cstdlib>
//GLEW
#include "GL/glew.h"
//GLFW
#include "GLFW/glfw3.h"

using namespace std;

/*
 * 
 */
int main(int argc, char** argv) {
    glewExperimental = GL_TRUE;
    glfwInit();
    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
    glfwWindowHint(GLFW_RESIZABLE, GL_FALSE);

    GLFWwindow* window = glfwCreateWindow(800, 600, "LearnOpenGL", NULL , NULL);
    glfwMakeContextCurrent(window);
    glViewport(0, 0, 800, 600);

    return 0;
}

As a side note this is my first time using libraries other than standards. Well Summary looking much longer than Long Story..

Edit: I do not think this is a duplicate question as I'm asking linking of a specific library, not how can I link something in C++. This is like saying all coding questions are same as all of them involves writing code. Checked the said topic and cannot find any direction about linking opengl32 library.

Answer 1

In Windows the OpenGL API interface library is called opengl32 not GL, hence you must link with

-lopengl32

(note that it's always …32, even on 64 bit systems).