#1012. Thank you, Thomas, for reporting this a providing the patch.

include/exiv2/http.hpp

@@ -1,12 +1,10 @@
-#ifndef HTTP_H_
+#ifndef HTTP_HPP_
-#define HTTP_H_
+#define HTTP_HPP_
 
 #include <string>
 #include <map>
 #include <algorithm>
 
-#include <exiv2/exiv2.hpp>
-
 namespace Exiv2 {
     typedef std::map<std::string,std::string> dict_t;
     typedef dict_t::iterator                  dict_i;
@@ -15,5 +13,3 @@ namespace Exiv2 {
 
 }
 #endif
-
-