opengl initialization problem with glew and glfw

Question

I'm starting to learn the OpenGL stuff, but unfortunately, I can't make the initialization right. I've added the glfw and glew libraries and these functions give me a strange error, how can I make it work?

The code:

#include <iostream>
#include <GL/glew.h>
#include <GLFW/glfw3.h>

int main(void)
{
GLFWwindow* window;

/* Initialize the library */
if (!glfwInit())
{
    std::cout << "GLFW initialization failed.\n";
    return -1;
}
if (glewInit()!=GLEW_OK)
{
    std::cout << "GLEW initialization failed.\n";
    return -1;
}
window = glfwCreateWindow(640, 480, "Hello World", NULL, NULL);

if (!window)
{
    glfwTerminate();
    std::cout << "Wiondow failed.\n";
    return -1;
}

/* Make the window's context current */
glfwMakeContextCurrent(window);
/* Loop until the user closes the window */
while (!glfwWindowShouldClose(window))
{
    /* Render here */
    glClear(GL_COLOR_BUFFER_BIT);

    /* Swap front and back buffers */
    glfwSwapBuffers(window);

    /* Poll for and process events */
    glfwPollEvents();
}


glfwTerminate();
return 0;
}

The errors:

Answer 1

To link the GLEW library correctly, proper preprocessor definitions have to be set. See GLEW - Installation:

[...] On Windows, you also need to define the GLEW_STATIC preprocessor token when building a static library or executable, and the GLEW_BUILD preprocessor token when building a dll [...]