title: No OpenGL 3 headers in Arch Linux
body: <p>I’m trying to compile a very simple “Hello world” OpenGL 3.3 program using FreeGLUT. In all the tutorials I found, they include an header “gl3.h”. The problem is, I don’t have such header file.</p>
  
  <pre><code>$ ls -l /usr/include/GL/
  total 2164
  -rw-r--r-- 1 root root   8797 20 janv. 17:44 freeglut_ext.h
  -rw-r--r-- 1 root root    681 20 janv. 17:44 freeglut.h
  -rw-r--r-- 1 root root  26181 20 janv. 17:44 freeglut_std.h
  -rw-r--r-- 1 root root 837247 27 janv. 12:55 glew.h
  -rw-r--r-- 1 root root 656589 21 mars  18:07 glext.h
  -rw-r--r-- 1 root root  84468 21 mars  18:07 gl.h
  -rw-r--r-- 1 root root 128943 21 mars  18:07 gl_mangle.h
  -rw-r--r-- 1 root root  17255 21 mars  18:07 glu.h
  -rw-r--r-- 1 root root   3315 21 mars  18:07 glu_mangle.h
  -rw-r--r-- 1 root root    639 20 janv. 17:44 glut.h
  -rw-r--r-- 1 root root  62741 27 janv. 12:55 glxew.h
  -rw-r--r-- 1 root root  43887 21 mars  18:07 glxext.h
  -rw-r--r-- 1 root root  17170 21 mars  18:07 glx.h
  -rw-r--r-- 1 root root   4706  3 févr. 13:33 glxint.h
  -rw-r--r-- 1 root root   3463 21 mars  18:07 glx_mangle.h
  -rw-r--r-- 1 root root   2086  3 févr. 13:33 glxmd.h
  -rw-r--r-- 1 root root  80979  3 févr. 13:33 glxproto.h
  -rw-r--r-- 1 root root  11246  3 févr. 13:33 glxtokens.h
  drwxr-xr-x 2 root root   4096 14 avril 14:03 internal
  -rw-r--r-- 1 root root   8497 21 mars  18:07 osmesa.h
  -rw-r--r-- 1 root root  51274 21 mars  18:07 vms_x_fix.h
  -rw-r--r-- 1 root root  59403 27 janv. 12:55 wglew.h
  -rw-r--r-- 1 root root  41377 21 mars  18:07 wglext.h
  -rw-r--r-- 1 root root   4468 21 mars  18:07 wmesa.h
  </code></pre>
  
  <p>In <code>/usr/include/</code> I only have <code>GL</code>, <code>GLES</code> and <code>GLES2</code>. There is no <code>GL3</code> as I found in some tutorials.</p>
  
  <p>I’m running on Arch Linux x86_64 with a NVIDIA graphic card (<code>nvidia</code> closed-source driver).</p>
  
  <p>Here is how I included OpenGL and FreeGLUT APIs in my program:</p>
  
  <pre><code>#define GL3_PROTOTYPES 1
  #include &lt;GL/gl.h&gt;
  #include &lt;GL/freeglut.h&gt;
  </code></pre>
  
  <p>But the code doesn’t compile:</p>
  
  <pre><code>$ g++ -pipe -g -Wall -Wextra -pedantic -I. -IHeaders -c Sources/Main.cpp -o Temp/Objects/Main.o 
  Sources/Main.cpp: In function ‘int main(int, char**)’:
  Sources/Main.cpp:107:59: error: ‘glVertexAttribPointer’ was not declared in this scope
  Sources/Main.cpp:108:30: error: ‘glEnableVertexAttribArray’ was not declared in this scope
  Sources/Main.cpp:114:35: error: ‘glUseProgram’ was not declared in this scope
  Sources/Main.cpp:138:31: error: ‘glDisableVertexAttribArray’ was not declared in this scope
  </code></pre>
  
  <p>It seems I included the OpenGL 2 headers! But, again, I didn’t find any OpenGL 3 headers on my system, I looked at the Arch repository and AUR, unsuccessfully.</p>
  
  <p>Thank you for your help!</p>