ext/libsass/extend.hpp in sassc-0.0.9 vs ext/libsass/extend.hpp in sassc-0.0.10

@@ -1,28 +1,21 @@
-#define SASS_EXTEND
+#ifndef SASS_EXTEND_H
+#define SASS_EXTEND_H
 
-#include <vector>
 #include <map>
 #include <set>
+#include <vector>
 #include <iostream>
 
-#ifndef SASS_AST
 #include "ast.hpp"
-#endif
-
-#ifndef SASS_OPERATION
 #include "operation.hpp"
-#endif
-
-#ifndef SASS_SUBSET_MAP
 #include "subset_map.hpp"
-#endif
 
 namespace Sass {
   using namespace std;
 
-  struct Context;
+  class Context;
 
   typedef Subset_Map<string, pair<Complex_Selector*, Compound_Selector*> > ExtensionSubsetMap;
 
   class Extend : public Operation_CRTP<void, Extend> {
 
@@ -46,5 +39,7 @@
     template <typename U>
     void fallback(U x) { return fallback_impl(x); }
   };
 
 }
+
+#endif