Added assert.h include

src/objectHandler.c

@@ -3,6 +3,7 @@
 #include <GL/glew.h>
 #include <stdlib.h>
 #include <stdio.h>
+#include <assert.h>
 
 /**
  * Loads an object.

src/shader.c

@@ -2,6 +2,7 @@
 #include <stdlib.h>
 #include <GL/glew.h>
 #include "shader.h"
+#include <assert.h>
 
 void compileShader(const GLchar *shaderSource, Shader *shader) {
     assert(shaderSource != NULL);