Improve CMake structure.

src/glutils.cpp

@@ -1,7 +1,6 @@
 #include <cstdint>
 #include <memory>
 #include <vector>
-#include <GL/glew.h>
 #include <cstring>
 #include <glog/logging.h>
 #include <chrono>
@@ -18,7 +17,7 @@ static void handleGLError(GLenum error) {
             return;
 
         default:
-            cerr << "OpenGL error: " << (const char*) glewGetErrorString(error) << endl;
+            cerr << "OpenGL error: " << (const char*) gluGetString(error) << endl;
     }
 }
 

src/main.cpp

@@ -1,7 +1,6 @@
 #include <algorithm>
 #include <iostream>
 #include <glog/logging.h>
-#include <GL/glew.h>
 #include <GL/glut.h>
 #include <map>
 
@@ -192,12 +191,6 @@ int main(int argc, char *argv[])
 
     Camera::instance().registerControls();
 
-    glewInit();
-    if (!GLEW_VERSION_2_0) {
-        cerr << "OpenGL 2.0 not available" << endl;
-        return 2;
-    }
-
     rendererData.currentData = rendererData.data.begin();
     updateVisualisers();
 

src/visualisations.cpp

@@ -1,6 +1,6 @@
 #include <algorithm>
 #include <numeric>
-#include <util/math_functions.hpp>
+#include <caffe/util/math_functions.hpp>
 #include "visualisations.hpp"
 #include "DummyLayerVisualisation.hpp"
 #include "MultiImageVisualisation.hpp"