title: ld: library not found for -lGL Error
body: <p>In OSX, I'm working on assignment where I was asked to run make file, when I do that, I ended up with this error:<a href="https://i.stack.imgur.com/njztl.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/njztl.png" alt="Image"></a>
  ld: library not found for -lGL</p>
  
  <p>clang: error: linker command failed with exit code 1 (use -v to see invocation)</p>
  
  <p>I've installed <code>glew</code> and <code>glfw3</code> in my OS.
  Can someone help me with this.</p>
  
  <p>I found few similar questions but didn't get required answer. Thanks in advance.</p>