--- AE/Installer/trunk/source/installer.h	2009/06/18 22:30:30	355
+++ AE/Installer/trunk/source/installer.h	2009/06/19 22:25:08	358
@@ -48,14 +48,14 @@ struct ModPackage
 		cout << "	Readme: " << readme << "\n";
 		cout << "\n";
 	}
-	
-	     bool operator < (const ModPackage &fs)
+
+	     bool operator < (const ModPackage &fs) const
      { return (name < fs.name);}
 
-     bool operator > (const ModPackage &fs)
+     bool operator > (const ModPackage &fs) const
      { return (name > fs.name);}
 
-     bool operator == (const ModPackage &fs)
+     bool operator == (const ModPackage &fs) const
      { return (name == fs.name);}
 };