#include <string>
#include <stdint.h>
-#include <sigc++/sigc++.h>
+#include <boost/signals2.hpp>
#include <openjpeg.h>
#include "types.h"
* progress; the parameter will start at 0.5 and proceed to 1.
* @return Digest.
*/
-extern std::string make_digest (std::string filename, sigc::signal1<void, float>* progress);
+extern std::string make_digest (std::string filename, boost::signals2::signal<void (float)>* progress);
extern std::string content_kind_to_string (ContentKind kind);
extern ContentKind content_kind_from_string (std::string kind);