diff -up libextractor-1.3/src/plugins/exiv2_extractor.cc.exiv_026 libextractor-1.3/src/plugins/exiv2_extractor.cc
--- libextractor-1.3/src/plugins/exiv2_extractor.cc.exiv_026	2013-06-25 06:02:05.000000000 -0500
+++ libextractor-1.3/src/plugins/exiv2_extractor.cc	2017-05-11 08:14:07.931182160 -0500
@@ -180,7 +180,7 @@ public:
    *
    * @return -1 on error
    */
-  virtual long int size (void) const;
+  virtual size_t size (void) const;
 
   /**
    * Check if file is open.
@@ -445,10 +445,10 @@ ExtractorIO::tell (void) const
  *
  * @return -1 on error
  */
-long int 
+size_t 
 ExtractorIO::size (void) const
 {
-  return (long) ec->get_size (ec->cls);
+  return ec->get_size (ec->cls);
 }