probleme de link de GLFW?

C:/ludumDare/main.cpp:17: undefined reference to `glfwSetErrorCallback'
C:/ludumDare/main.cpp:18: undefined reference to `glfwInit'
C:/ludumDare/main.cpp:20: undefined reference to `glfwCreateWindow'
C:/ludumDare/main.cpp:23: undefined reference to `glfwTerminate'
C:/ludumDare/main.cpp:26: undefined reference to `glfwMakeContextCurrent'
C:/ludumDare/main.cpp:27: undefined reference to `glfwSwapInterval'
C:/ludumDare/main.cpp:28: undefined reference to `glfwSetKeyCallback'
C:/ludumDare/main.cpp:33: undefined reference to `glfwGetFramebufferSize'
C:/ludumDare/main.cpp:35: undefined reference to `_imp__glViewport@16'
C:/ludumDare/main.cpp:36: undefined reference to `_imp__glClear@4'
C:/ludumDare/main.cpp:37: undefined reference to `_imp__glMatrixMode@4'
C:/ludumDare/main.cpp:38: undefined reference to `_imp__glLoadIdentity@0'
C:/ludumDare/main.cpp:39: undefined reference to `_imp__glOrtho@48'
C:/ludumDare/main.cpp:40: undefined reference to `_imp__glMatrixMode@4'
C:/ludumDare/main.cpp:41: undefined reference to `_imp__glLoadIdentity@0'
C:/ludumDare/main.cpp:42: undefined reference to `glfwGetTime'
C:/ludumDare/main.cpp:42: undefined reference to `_imp__glRotatef@16'
C:/ludumDare/main.cpp:43: undefined reference to `_imp__glBegin@4'
C:/ludumDare/main.cpp:44: undefined reference to `_imp__glColor3f@12'
C:/ludumDare/main.cpp:45: undefined reference to `_imp__glVertex3f@12'
C:/ludumDare/main.cpp:46: undefined reference to `_imp__glColor3f@12'
C:/ludumDare/main.cpp:47: undefined reference to `_imp__glVertex3f@12'
C:/ludumDare/main.cpp:48: undefined reference to `_imp__glColor3f@12'
C:/ludumDare/main.cpp:49: undefined reference to `_imp__glVertex3f@12'
C:/ludumDare/main.cpp:50: undefined reference to `_imp__glEnd@0'
C:/ludumDare/main.cpp:51: undefined reference to `glfwSwapBuffers'
C:/ludumDare/main.cpp:52: undefined reference to `glfwPollEvents'
C:/ludumDare/main.cpp:29: undefined reference to `glfwWindowShouldClose'
C:/ludumDare/main.cpp:54: undefined reference to `glfwDestroyWindow'

#include <GLFW/glfw3.h>
#include <stdlib.h>
#include <stdio.h>
static void error_callback(int error, const char* description)
{
    fputs(description, stderr);
}
static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
{
    if (key == GLFW_KEY_ESCAPE && action == GLFW_PRESS)
        glfwSetWindowShouldClose(window, GL_TRUE);
}
int main(void)
{
    GLFWwindow* window;
    glfwSetErrorCallback(error_callback);
    if (!glfwInit())
        exit(EXIT_FAILURE);
    window = glfwCreateWindow(640, 480, "Simple example", NULL, NULL);
    if (!window)
    {
        glfwTerminate();
        exit(EXIT_FAILURE);
    }
    glfwMakeContextCurrent(window);
    glfwSwapInterval(1);
    glfwSetKeyCallback(window, key_callback);
    while (!glfwWindowShouldClose(window))
    {
        float ratio;
        int width, height;
        glfwGetFramebufferSize(window, &width, &height);
        ratio = width / (float) height;
        glViewport(0, 0, width, height);
        glClear(GL_COLOR_BUFFER_BIT);
        glMatrixMode(GL_PROJECTION);
        glLoadIdentity();
        glOrtho(-ratio, ratio, -1.f, 1.f, 1.f, -1.f);
        glMatrixMode(GL_MODELVIEW);
        glLoadIdentity();
        glRotatef((float) glfwGetTime() * 50.f, 0.f, 0.f, 1.f);
        glBegin(GL_TRIANGLES);
        glColor3f(1.f, 0.f, 0.f);
        glVertex3f(-0.6f, -0.4f, 0.f);
        glColor3f(0.f, 1.f, 0.f);
        glVertex3f(0.6f, -0.4f, 0.f);
        glColor3f(0.f, 0.f, 1.f);
        glVertex3f(0.f, 0.6f, 0.f);
        glEnd();
        glfwSwapBuffers(window);
        glfwPollEvents();
    }
    glfwDestroyWindow(window);
    glfwTerminate();
    exit(EXIT_SUCCESS);
}

cmake_minimum_required(VERSION 3.5)
project(ludumDare)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
set(SOURCE_FILES main.cpp)

include_directories(${PROJECT_SOURCE_DIR}/GLFW/include)

link_directories(${PROJECT_SOURCE_DIR}/GLFW/lib-mingw-w64)
add_executable(ludumDare ${SOURCE_FILES})

target_link_libraries(ludumDare glfw3 )

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
set(SOURCE_FILES main.cpp)

add_subdirectory(${PROJECT_SOURCE_DIR}/GLFW/lib-mingw-w64)
include_directories(${PROJECT_SOURCE_DIR}/GLFW/include)

add_executable(ludumDare ${SOURCE_FILES})

target_link_libraries(ludumDare glfw ${GLFW_LIBRARIES} )

The source directory
  C:/ludumDare/GLFW/lib-mingw-w64
does not contain a CMakeLists.txt file.