added virtual destructor to remove some compiler warnings

git-svn-id: svn://anubis/misc/TextureCache@188 bd8a9e45-a331-0410-811e-c64571078777

TextureCache.cc

@@ -1,6 +1,6 @@
 
-#include <SDL/SDL.h>
-#include <SDL/SDL_image.h>
+#include <SDL.h>
+#include <SDL_image.h>
 #include <GL/gl.h>
 #include <GL/glu.h>
 #include <iostream>
@@ -9,6 +9,10 @@
 #include "FileLoader/FileLoader.h"
 using namespace std;
 
+TextureCache::~TextureCache()
+{
+}
+
 GLuint TextureCache::load(const FileLoader::Path & path,
         FileLoader & fileLoader, bool mipmaps,
         int mode, int quality)

TextureCache.h

@@ -12,6 +12,7 @@
 class TextureCache : public TextureLoader
 {
 public:
+    virtual ~TextureCache();
     virtual GLuint load(const FileLoader::Path & path,
             FileLoader & fileLoader, bool mipmaps = true,
             int mode = GL_DECAL, int quality = 1);