title: Mac - OpenGL - glew not found
body: <p>basically i try to figure out why compiler complains about missing glew-library:</p>
  
  <pre><code>fatal error: 'GL/glew.h' file not found
  </code></pre>
  
  <p>My setup:</p>
  
  <p>brew list:</p>
  
  <pre><code>glew
  glfw
  glm
  </code></pre>
  
  <p>In /usr/local/include directory:</p>
  
  <pre><code>GL -&gt; ../Cellar/glew/2.0.0/include/GL
  GLFW -&gt; ../Cellar/glfw/3.2.1/include/GLFW
  glm -&gt; ../Cellar/glm/0.9.8.3/include/glm
  </code></pre>
  
  <p>and Makefile:</p>
  
  <pre><code># OBJS specifies which files to compile as part of the project
  OBJS = *.cpp
  
  # CC specifies which compiler we're using
  CC = g++
  
  # INCLUDE_PATHS specifies the additional include paths we'll need
  INCLUDE_PATHS = -I/usr/local/include -I/opt/X11/include
  
  # LIBRARY_PATHS specifies the additional library paths we'll need
  LIBRARY_PATHS = -L/usr/local/lib -I/opt/X11/lib
  
  # COMPILER_FLAGS specifies the additional compilation options we're using
  # -w suppresses all warnings
  COMPILER_FLAGS = -w
  
  # LINKER_FLAGS specifies the libraries we're linking against
  # Cocoa, IOKit, and CoreVideo are needed for static GLFW3.
  LINKER_FLAGS = -framework OpenGL -lglfw3 -lglew
  
  # OBJ_NAME specifies the name of our exectuable
  OBJ_NAME = main
  
  #This is the target that compiles our executable
  all : $(OBJS)
      $(CC) $(OBJS) $(INCLUDE_PATHS) $(LIBRARY_PATHS) $(COMPILER_FLAGS) $(LINKER_FLAGS) -o $(OBJ_NAME)
  </code></pre>
  
  <p>When i have a file in same directory called: File.cpp and i run:</p>
  
  <pre><code>make File
  </code></pre>
  
  <p>i get:</p>
  
  <pre><code>fatal error: 'GL/glew.h' file not found
  </code></pre>
  
  <p>Can anybody explain why the above setup is wrong/damaged?</p>
  
  <p>ps: os, el capitan</p>